Articles | Volume 20, issue 7
https://doi.org/10.5194/bg-20-1443-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-20-1443-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
12 Apr 2023
Research article |
| 12 Apr 2023
| 12 Apr 2023
Phosphorus regulates ectomycorrhizal fungi biomass production in a Norway spruce forest
Lund University, Microbial Ecology, Department of Biology, 223 62 Lund, Sweden
Swedish University of Agricultural Sciences (SLU), Department of Biosystems and Technology, Sundsvägen 14, Alnarp, Sweden
Lorenzo Menichetti
Swedish University of Agricultural Sciences (SLU), Department of Ecology, Ulls Väg 17, Uppsala, Sweden
Alf Ekblad
School of Science and Technology, Örebro University, 701 82 Örebro, Sweden
Nicholas P. Rosenstock
Center for Environmental and Climate Research, Lund University, 223 62 Lund, Sweden
Håkan Wallander
Lund University, Microbial Ecology, Department of Biology, 223 62 Lund, Sweden
Related authors
Juan Pablo Almeida, Nicholas P. Rosenstock, Susanne K. Woche, Georg Guggenberger, and Håkan Wallander
Biogeosciences, 19, 3713–3726, https://doi.org/10.5194/bg-19-3713-2022, https://doi.org/10.5194/bg-19-3713-2022, 2022
Short summary
Short summary
Fungi living in symbiosis with tree roots can accumulate belowground, forming special tissues than can repel water. We measured the water repellency of organic material incubated belowground and correlated it with fungal growth. We found a positive association between water repellency and root symbiotic fungi. These results are important because an increase in soil water repellency can reduce the release of CO2 from soils into the atmosphere and mitigate the effects of greenhouse gasses.
Anna Teruzzi, Ali Aydogdu, Carolina Amadio, Emanuela Clementi, Simone Colella, Valeria Di Biagio, Massimiliano Drudi, Claudia Fanelli, Laura Feudale, Alessandro Grandi, Pietro Miraglio, Andrea Pisano, Jenny Pistoia, Marco Reale, Stefano Salon, Gianluca Volpe, and Gianpiero Cossarini
State Planet, 4-osr8, 15, https://doi.org/10.5194/sp-4-osr8-15-2024, https://doi.org/10.5194/sp-4-osr8-15-2024, 2024
Short summary
Short summary
A noticeable cold spell occurred in Eastern Europe at the beginning of 2022 and was the main driver of intense deep-water formation and the associated transport of nutrients to the surface. Southeast of Crete, the availability of both light and nutrients in the surface layer stimulated an anomalous phytoplankton bloom. In the area, chlorophyll concentration (a proxy for bloom intensity) and primary production were considerably higher than usual, suggesting possible impacts on fishery catches.
Jorn Bruggeman, Karsten Bolding, Lars Nerger, Anna Teruzzi, Simone Spada, Jozef Skákala, and Stefano Ciavatta
Geosci. Model Dev., 17, 5619–5639, https://doi.org/10.5194/gmd-17-5619-2024, https://doi.org/10.5194/gmd-17-5619-2024, 2024
Short summary
Short summary
To understand and predict the ocean’s capacity for carbon sequestration, its ability to supply food, and its response to climate change, we need the best possible estimate of its physical and biogeochemical properties. This is obtained through data assimilation which blends numerical models and observations. We present the Ensemble and Assimilation Tool (EAT), a flexible and efficient test bed that allows any scientist to explore and further develop the state of the art in data assimilation.
Maria Regina Gmach, Martin Anders Bolinder, Lorenzo Menichetti, Thomas Kätterer, Heide Spiegel, Olle Åkesson, Jürgen Kurt Friedel, Andreas Surböck, Agnes Schweinzer, and Taru Sandén
SOIL, 10, 407–423, https://doi.org/10.5194/soil-10-407-2024, https://doi.org/10.5194/soil-10-407-2024, 2024
Short summary
Short summary
We evaluated the effect of soil management practices on decomposition at 29 sites (13 in Sweden and 16 in Austria) using long-term field experiments with the Tea Bag Index (TBI) approach. We found that the decomposition rate (k) and stabilization factor (S) were mainly governed by climatic conditions. In general, organic and mineral fertilization increased k and S, and reduced tillage increased S. Edaphic factors also affected k and S.
Carolina Amadio, Anna Teruzzi, Gloria Pietropolli, Luca Manzoni, Gianluca Coidessa, and Gianpiero Cossarini
Ocean Sci., 20, 689–710, https://doi.org/10.5194/os-20-689-2024, https://doi.org/10.5194/os-20-689-2024, 2024
Short summary
Short summary
Forecasting of marine biogeochemistry can be improved via the assimilation of observations. Floating buoys provide multivariate information about the status of the ocean interior. Information on the ocean interior can be expanded/augmented by machine learning. In this work, we show the enhanced impact of assimilating new in situ variables (oxygen) and reconstructed variables (nitrate) in the operational forecast system (MedBFM) model of the Mediterranean Sea.
Eva Álvarez, Gianpiero Cossarini, Anna Teruzzi, Jorn Bruggeman, Karsten Bolding, Stefano Ciavatta, Vincenzo Vellucci, Fabrizio D'Ortenzio, David Antoine, and Paolo Lazzari
Biogeosciences, 20, 4591–4624, https://doi.org/10.5194/bg-20-4591-2023, https://doi.org/10.5194/bg-20-4591-2023, 2023
Short summary
Short summary
Chromophoric dissolved organic matter (CDOM) interacts with the ambient light and gives the waters of the Mediterranean Sea their colour. We propose a novel parameterization of the CDOM cycle, whose parameter values have been optimized by using the data of the monitoring site BOUSSOLE. Nutrient and light limitations for locally produced CDOM caused aCDOM(λ) to covary with chlorophyll, while the above-average CDOM concentrations observed at this site were maintained by allochthonous sources.
Simone Spada, Anna Teruzzi, Stefano Maset, Stefano Salon, Cosimo Solidoro, and Gianpiero Cossarini
Geosci. Model Dev. Discuss., https://doi.org/10.5194/gmd-2023-170, https://doi.org/10.5194/gmd-2023-170, 2023
Revised manuscript under review for GMD
Short summary
Short summary
In geosciences, data assimilation (DA) combines modeled dynamics and observations to reduce simulation uncertainties. Uncertainties can be dynamically and effectively estimated in ensemble DA methods. With respect to current techniques, the novel GHOSH ensemble DA scheme is designed to improve accuracy by reaching a higher approximation order, without increasing computational costs, as demonstrated in idealized Lorenz96 tests and in realistic simulations of the Mediterranean Sea biogeochemistry
Giovanni Coppini, Emanuela Clementi, Gianpiero Cossarini, Stefano Salon, Gerasimos Korres, Michalis Ravdas, Rita Lecci, Jenny Pistoia, Anna Chiara Goglio, Massimiliano Drudi, Alessandro Grandi, Ali Aydogdu, Romain Escudier, Andrea Cipollone, Vladyslav Lyubartsev, Antonio Mariani, Sergio Cretì, Francesco Palermo, Matteo Scuro, Simona Masina, Nadia Pinardi, Antonio Navarra, Damiano Delrosso, Anna Teruzzi, Valeria Di Biagio, Giorgio Bolzon, Laura Feudale, Gianluca Coidessa, Carolina Amadio, Alberto Brosich, Arnau Miró, Eva Alvarez, Paolo Lazzari, Cosimo Solidoro, Charikleia Oikonomou, and Anna Zacharioudaki
Ocean Sci., 19, 1483–1516, https://doi.org/10.5194/os-19-1483-2023, https://doi.org/10.5194/os-19-1483-2023, 2023
Short summary
Short summary
The paper presents the Mediterranean Forecasting System evolution and performance developed in the framework of the Copernicus Marine Service.
Valeria Di Biagio, Riccardo Martellucci, Milena Menna, Anna Teruzzi, Carolina Amadio, Elena Mauri, and Gianpiero Cossarini
State Planet, 1-osr7, 10, https://doi.org/10.5194/sp-1-osr7-10-2023, https://doi.org/10.5194/sp-1-osr7-10-2023, 2023
Short summary
Short summary
Oxygen is essential to all aerobic organisms, and its content in the marine environment is continuously under assessment. By integrating observations with a model, we describe the dissolved oxygen variability in a sensitive Mediterranean area in the period 1999–2021 and ascribe it to multiple acting physical and biological drivers. Moreover, the reduction recognized in 2021, apparently also due to other mechanisms, requires further monitoring in light of its possible impacts.
Alexandre Mignot, Hervé Claustre, Gianpiero Cossarini, Fabrizio D'Ortenzio, Elodie Gutknecht, Julien Lamouroux, Paolo Lazzari, Coralie Perruche, Stefano Salon, Raphaëlle Sauzède, Vincent Taillandier, and Anna Teruzzi
Biogeosciences, 20, 1405–1422, https://doi.org/10.5194/bg-20-1405-2023, https://doi.org/10.5194/bg-20-1405-2023, 2023
Short summary
Short summary
Numerical models of ocean biogeochemistry are becoming a major tool to detect and predict the impact of climate change on marine resources and monitor ocean health. Here, we demonstrate the use of the global array of BGC-Argo floats for the assessment of biogeochemical models. We first detail the handling of the BGC-Argo data set for model assessment purposes. We then present 23 assessment metrics to quantify the consistency of BGC model simulations with respect to BGC-Argo data.
Juan Pablo Almeida, Nicholas P. Rosenstock, Susanne K. Woche, Georg Guggenberger, and Håkan Wallander
Biogeosciences, 19, 3713–3726, https://doi.org/10.5194/bg-19-3713-2022, https://doi.org/10.5194/bg-19-3713-2022, 2022
Short summary
Short summary
Fungi living in symbiosis with tree roots can accumulate belowground, forming special tissues than can repel water. We measured the water repellency of organic material incubated belowground and correlated it with fungal growth. We found a positive association between water repellency and root symbiotic fungi. These results are important because an increase in soil water repellency can reduce the release of CO2 from soils into the atmosphere and mitigate the effects of greenhouse gasses.
Niel Verbrigghe, Niki I. W. Leblans, Bjarni D. Sigurdsson, Sara Vicca, Chao Fang, Lucia Fuchslueger, Jennifer L. Soong, James T. Weedon, Christopher Poeplau, Cristina Ariza-Carricondo, Michael Bahn, Bertrand Guenet, Per Gundersen, Gunnhildur E. Gunnarsdóttir, Thomas Kätterer, Zhanfeng Liu, Marja Maljanen, Sara Marañón-Jiménez, Kathiravan Meeran, Edda S. Oddsdóttir, Ivika Ostonen, Josep Peñuelas, Andreas Richter, Jordi Sardans, Páll Sigurðsson, Margaret S. Torn, Peter M. Van Bodegom, Erik Verbruggen, Tom W. N. Walker, Håkan Wallander, and Ivan A. Janssens
Biogeosciences, 19, 3381–3393, https://doi.org/10.5194/bg-19-3381-2022, https://doi.org/10.5194/bg-19-3381-2022, 2022
Short summary
Short summary
In subarctic grassland on a geothermal warming gradient, we found large reductions in topsoil carbon stocks, with carbon stocks linearly declining with warming intensity. Most importantly, however, we observed that soil carbon stocks stabilised within 5 years of warming and remained unaffected by warming thereafter, even after > 50 years of warming. Moreover, in contrast to the large topsoil carbon losses, subsoil carbon stocks remained unaffected after > 50 years of soil warming.
Anna Teruzzi, Giorgio Bolzon, Laura Feudale, and Gianpiero Cossarini
Biogeosciences, 18, 6147–6166, https://doi.org/10.5194/bg-18-6147-2021, https://doi.org/10.5194/bg-18-6147-2021, 2021
Short summary
Short summary
During summer, maxima of phytoplankton chlorophyll concentration (DCM) occur in the subsurface of the Mediterranean Sea and can play a relevant role in carbon sequestration into the ocean interior. A numerical model based on in situ and satellite observations provides insights into the range of DCM conditions across the relatively small Mediterranean Sea and shows a western DCM that is 25 % shallower and with a higher phytoplankton chlorophyll concentration than in the eastern Mediterranean.
Roger D. Finlay, Shahid Mahmood, Nicholas Rosenstock, Emile B. Bolou-Bi, Stephan J. Köhler, Zaenab Fahad, Anna Rosling, Håkan Wallander, Salim Belyazid, Kevin Bishop, and Bin Lian
Biogeosciences, 17, 1507–1533, https://doi.org/10.5194/bg-17-1507-2020, https://doi.org/10.5194/bg-17-1507-2020, 2020
Short summary
Short summary
Effects of biological activity on mineral weathering operate at scales ranging from short-term, microscopic interactions to global, evolutionary timescale processes. Microorganisms have had well-documented effects at large spatio-temporal scales, but to establish the quantitative significance of microscopic measurements for field-scale processes, higher-resolution studies of liquid chemistry at local weathering sites and improved upscaling to soil-scale dissolution rates are still required.
Cecilia Akselsson, Salim Belyazid, Johan Stendahl, Roger Finlay, Bengt A. Olsson, Martin Erlandsson Lampa, Håkan Wallander, Jon Petter Gustafsson, and Kevin Bishop
Biogeosciences, 16, 4429–4450, https://doi.org/10.5194/bg-16-4429-2019, https://doi.org/10.5194/bg-16-4429-2019, 2019
Short summary
Short summary
The release of elements from soil through weathering is an important process, controlling nutrient availability for plants and recovery from acidification. However, direct measurements cannot be done, and present estimates are burdened with high uncertainties. In this paper we use different approaches to quantify weathering rates in different scales in Sweden and discuss the pros and cons. The study contributes to more robust assessments of sustainable harvesting of forest biomass.
Stefano Salon, Gianpiero Cossarini, Giorgio Bolzon, Laura Feudale, Paolo Lazzari, Anna Teruzzi, Cosimo Solidoro, and Alessandro Crise
Ocean Sci., 15, 997–1022, https://doi.org/10.5194/os-15-997-2019, https://doi.org/10.5194/os-15-997-2019, 2019
Short summary
Short summary
After 10 years of research and development, validated analysis and forecasts of the main parameters of the Mediterranean Sea biogeochemistry (e.g. phytoplankton, nutrients, oxygen, pH, carbon fluxes) at high spatial and temporal resolution are provided in the frame of the EU Copernicus Marine Environment Monitoring Service. Along with a traditional skill performance assessment, novel metrics exploiting the Biogeochemical Argo floats data are designed to estimate the forecasts uncertainty.
Fernando Esteban Moyano, Nadezda Vasilyeva, and Lorenzo Menichetti
Biogeosciences, 15, 5031–5045, https://doi.org/10.5194/bg-15-5031-2018, https://doi.org/10.5194/bg-15-5031-2018, 2018
Short summary
Short summary
Soils are complex systems storing large quantities of carbon in the form of organic matter. Understanding how climatic drivers such as temperature and moisture influence the decomposition and thus the turnover of this carbon is crucial for predicting feedbacks between climate and soils. This study aims at improving our mechanistic understanding of how these factors interact to drive decomposition and thus modify the capacity of soils to emit or capture atmospheric CO2.
Lorenzo Menichetti, Thomas Kätterer, and Jens Leifeld
Biogeosciences, 13, 3003–3019, https://doi.org/10.5194/bg-13-3003-2016, https://doi.org/10.5194/bg-13-3003-2016, 2016
Short summary
Short summary
Soil organic carbon dynamics are crucial for the global greenhouse gas balance, but their complexity is difficult to model and understand. We therefore often rely on radiocarbon measurements for calibrating models, but their effect on our understanding of the processes is still unclear. We calibrated five model structures on data from a long-term Swiss field experiment in a Bayesian framework to assess the effect of radiocarbon on the parameter and structural uncertainty of a soil carbon model.
Related subject area
Biogeochemistry: Environmental Microbiology
Effects of surface water interactions with karst groundwater on microbial biomass, metabolism, and production
Overview: Global change effects on terrestrial biogeochemistry at the plant–soil interface
Ideas and perspectives: Microorganisms in the air through the lenses of atmospheric chemistry and microphysics
Changes in diazotrophic community structure associated with Kuroshio succession in the northern South China Sea
Technical note: A comparison of methods for estimating coccolith mass
Fractionation of stable carbon isotopes during formate consumption in anoxic rice paddy soils and lake sediments
Characteristics of bacterial and fungal communities and their associations with sugar compounds in atmospheric aerosols at a rural site in northern China
Responses of globally important phytoplankton species to olivine dissolution products and implications for carbon dioxide removal via ocean alkalinity enhancement
Differentiation of cognate bacterial communities in thermokarst landscapes: implications for ecological consequences of permafrost degradation
A multi-phase biogeochemical model for mitigating earthquake-induced liquefaction via microbially induced desaturation and calcium carbonate precipitation
Reallocation of elemental content and macromolecules in the coccolithophore Emiliania huxleyi to acclimate to climate change
Abrasion of sedimentary rocks as a source of hydrogen peroxide and nutrients to subglacial ecosystems
Nitrous oxide (N2O) synthesis by the freshwater cyanobacterium Microcystis aeruginosa
Interdisciplinary strategy to assess the impact of meteorological variables on the biochemical composition of the rain and the dynamics of a small eutrophic lake under rain forcing
Depth-related patterns in microbial community responses to complex organic matter in the western North Atlantic Ocean
Assessing the influence of ocean alkalinity enhancement on a coastal phytoplankton community
Eddy-enhanced primary production sustains heterotrophic microbial activities in the Eastern Tropical North Atlantic
Composition and niche-specific characteristics of microbial consortia colonizing Marsberg copper mine in the Rhenish Massif
Diversity and assembly processes of microbial eukaryotic communities in Fildes Peninsula Lakes (West Antarctica)
Nitrophobic ectomycorrhizal fungi are associated with enhanced hydrophobicity of soil organic matter in a Norway spruce forest
Physiological control on carbon isotope fractionation in marine phytoplankton
Implementation of mycorrhizal mechanisms into soil carbon model improves the prediction of long-term processes of plant litter decomposition
Impact of dust addition on the microbial food web under present and future conditions of pH and temperature
Fractionation of stable carbon isotopes during acetate consumption by methanogenic and sulfidogenic microbial communities in rice paddy soils and lake sediments
Hydrothermal trace metal release and microbial metabolism in the northeastern Lau Basin of the South Pacific Ocean
Sedimentation rate and organic matter dynamics shape microbiomes across a continental margin
Disturbance triggers non-linear microbe–environment feedbacks
Hydrographic fronts shape productivity, nitrogen fixation, and microbial community composition in the southern Indian Ocean and the Southern Ocean
Microbial and geo-archaeological records reveal the growth rate, origin and composition of desert rock surface communities
Metagenomic insights into the metabolism of microbial communities that mediate iron and methane cycling in Lake Kinneret iron-rich methanic sediments
Spatiotemporal patterns of N2 fixation in coastal waters derived from rate measurements and remote sensing
Biotic and abiotic transformation of amino acids in cloud water: experimental studies and atmospheric implications
Potential bioavailability of organic matter from atmospheric particles to marine heterotrophic bacteria
Microbial functional signature in the atmospheric boundary layer
New insight to niche partitioning and ecological function of ammonia oxidizing archaea in subtropical estuarine ecosystem
Impact of reactive surfaces on the abiotic reaction between nitrite and ferrous iron and associated nitrogen and oxygen isotope dynamics
Reviews and syntheses: Bacterial bioluminescence – ecology and impact in the biological carbon pump
Salinity-dependent algae uptake and subsequent carbon and nitrogen metabolisms of two intertidal foraminifera (Ammonia tepida and Haynesina germanica)
On giant shoulders: how a seamount affects the microbial community composition of seawater and sponges
Spatial variations in sedimentary N-transformation rates in the North Sea (German Bight)
Patterns of (trace) metals and microorganisms in the Rainbow hydrothermal vent plume at the Mid-Atlantic Ridge
Co-occurrence of Fe and P stress in natural populations of the marine diazotroph Trichodesmium
Senescence as the main driver of iodide release from a diverse range of marine phytoplankton
Reviews and syntheses: Biological weathering and its consequences at different spatial levels – from nanoscale to global scale
Deep-sea sponge grounds as nutrient sinks: denitrification is common in boreo-Arctic sponges
Inducing the attachment of cable bacteria on oxidizing electrodes
Bacterial degradation activity in the eastern tropical South Pacific oxygen minimum zone
Macromolecular fungal ice nuclei in Fusarium: effects of physical and chemical processing
Effects of sea animal colonization on the coupling between dynamics and activity of soil ammonia-oxidizing bacteria and archaea in maritime Antarctica
Comprehensive characterization of an aspen (Populus tremuloides) leaf litter sample that maintained ice nucleation activity for 48 years
Adrian Barry-Sosa, Madison K. Flint, Justin C. Ellena, Jonathan B. Martin, and Brent C. Christner
Biogeosciences, 21, 3965–3984, https://doi.org/10.5194/bg-21-3965-2024, https://doi.org/10.5194/bg-21-3965-2024, 2024
Short summary
Short summary
This study examined springs in north central Florida focusing on how interactions between the surface and subsurface affected the properties of groundwater microbes. We found that microbes reproduced at rates that greatly exceed those documented for any other aquifer. Although the groundwater discharged to spring runs contains low concentrations of nutrients, our results indicate that microbes have access to sources of energy and produce new cells at rates similar to surface waterbodies.
Lucia Fuchslueger, Emily Francesca Solly, Alberto Canarini, and Albert Carles Brangarí
Biogeosciences, 21, 3959–3964, https://doi.org/10.5194/bg-21-3959-2024, https://doi.org/10.5194/bg-21-3959-2024, 2024
Short summary
Short summary
This overview of the special issue “Global change effects on terrestrial biogeochemistry at the plant–soil interface” features empirical, conceptual and modelling-based studies and outlines key findings on plant responses to elevated CO2; soil organism responses to warming; impacts on soil organic carbon, nitrogen and mineral nutrient cycling; and water level changes affecting greenhouse gas emissions, from the Arctic to the tropics, which are crucial for deciphering feedbacks to global change.
Barbara Ervens, Pierre Amato, Kifle Aregahegn, Muriel Joly, Amina Khaled, Tiphaine Labed-Veydert, Frédéric Mathonat, Leslie Nuñez López, Raphaëlle Péguilhan, and Minghui Zhang
EGUsphere, https://doi.org/10.5194/egusphere-2024-2377, https://doi.org/10.5194/egusphere-2024-2377, 2024
Short summary
Short summary
Atmospheric microorganisms are a small fraction of Earth's microbiome, with bacteria being a significant part. Aerosolized bacteria are airborne for a few days encountering unique chemical and physical conditions affecting stress levels and survival. We explore chemical and microphysical conditions bacteria encounter, highlighting potential nutrient and oxidant limitations and diverse effects by pollutants, which may ultimately impact the microbiome's role in global ecosystems and biodiversity.
Han Zhang, Guangming Mai, Weicheng Luo, Meng Chen, Ran Duan, and Tuo Shi
Biogeosciences, 21, 2529–2546, https://doi.org/10.5194/bg-21-2529-2024, https://doi.org/10.5194/bg-21-2529-2024, 2024
Short summary
Short summary
We report taxon-specific biogeography of N2-fixing microbes (diazotrophs) driven by Kuroshio intrusion (Kl) into the South China Sea. We show that the composition and distribution of distinct diazotrophic taxa shift with Kl-induced variations in physicochemical parameters of seawater and that Kl shapes diazotrophic community primarily as a stochastic process. This study thus has implications for the distribution of diazotrophs in a future warming ocean, as Kls are projected to intensify.
Celina Rebeca Valença, Luc Beaufort, Gustaaf Marinus Hallegraeff, and Marius Nils Müller
Biogeosciences, 21, 1601–1611, https://doi.org/10.5194/bg-21-1601-2024, https://doi.org/10.5194/bg-21-1601-2024, 2024
Short summary
Short summary
Coccolithophores contribute to the global carbon cycle and their calcite structures (coccoliths) are used as a palaeoproxy to understand past oceanographic conditions. Here, we compared three frequently used methods to estimate coccolith mass from the model species Emiliania huxleyi and the results allow for a high level of comparability between the methods, facilitating future comparisons and consolidation of mass changes observed from ecophysiological and biogeochemical studies.
Ralf Conrad and Peter Claus
Biogeosciences, 21, 1161–1172, https://doi.org/10.5194/bg-21-1161-2024, https://doi.org/10.5194/bg-21-1161-2024, 2024
Short summary
Short summary
Knowledge of carbon isotope fractionation is important for the assessment of the pathways involved in the degradation of organic matter. Formate is an important intermediate during this process. It was mainly converted to carbon dioxide and acetate both in the presence and absence of sulfate. Methane was only a minor product and was mainly formed from the acetate. The acetate was depleted in the heavy carbon atom relative to formate, while the carbon dioxide was enriched.
Mutong Niu, Shu Huang, Wei Hu, Yajie Wang, Wanyun Xu, Wan Wei, Qiang Zhang, Zihan Wang, Donghuan Zhang, Rui Jin, Libin Wu, Junjun Deng, Fangxia Shen, and Pingqing Fu
Biogeosciences, 20, 4915–4930, https://doi.org/10.5194/bg-20-4915-2023, https://doi.org/10.5194/bg-20-4915-2023, 2023
Short summary
Short summary
Sugar compounds in air can trace the source of bioaerosols that affect public health and climate. In rural north China, we observed increased fungal activity at night and less variable bacterial community diversity. Certain night-increasing sugar compounds were more closely related to fungi than bacteria. The fungal community greatly influenced sugar compounds, while bacteria played a limited role. Caution is advised when using sugar compounds to trace airborne microbes, particularly bacteria.
David A. Hutchins, Fei-Xue Fu, Shun-Chung Yang, Seth G. John, Stephen J. Romaniello, M. Grace Andrews, and Nathan G. Walworth
Biogeosciences, 20, 4669–4682, https://doi.org/10.5194/bg-20-4669-2023, https://doi.org/10.5194/bg-20-4669-2023, 2023
Short summary
Short summary
Applications of the mineral olivine are a promising means to capture carbon dioxide via coastal enhanced weathering, but little is known about the impacts on important marine phytoplankton. We examined the effects of olivine dissolution products on species from three major phytoplankton groups: diatoms, coccolithophores, and cyanobacteria. Growth and productivity were generally either unaffected or stimulated, suggesting the effects of olivine on key phytoplankton are negligible or positive.
Ze Ren, Shudan Ye, Hongxuan Li, Xilei Huang, and Luyao Chen
Biogeosciences, 20, 4241–4258, https://doi.org/10.5194/bg-20-4241-2023, https://doi.org/10.5194/bg-20-4241-2023, 2023
Short summary
Short summary
Permafrost thaw initiates thermokarst landscape formation, resulting in distinct new habitats, including degraded permafrost soil, thermokarst lake sediments, and lake water. These distinct habitats harbored differentiated bacterial communities that originated from the same source, differing in diversity, assembly mechanisms, and environmental influences. The results imply ecological consequences of permafrost degradation in the face of further climate change.
Caitlyn A. Hall, Andre van Turnhout, Edward Kavazanjian Jr., Leon A. van Paassen, and Bruce Rittmann
Biogeosciences, 20, 2903–2917, https://doi.org/10.5194/bg-20-2903-2023, https://doi.org/10.5194/bg-20-2903-2023, 2023
Short summary
Short summary
Earthquake-induced soil liquefaction poses a significant global threat. Microbially induced desaturation and precipitation (MIDP) via denitrification is a potentially sustainable, non-disruptive bacteria-driven ground improvement technique under existing structures. We developed a next-generation biogeochemical model to understand and predict the behavior of MIDP in the natural environment to design field-based hazard mitigation treatments.
Yong Zhang, Yong Zhang, Shuai Ma, Hanbing Chen, Jiabing Li, Zhengke Li, Kui Xu, Ruiping Huang, Hong Zhang, Yonghe Han, and Jun Sun
Biogeosciences, 20, 1299–1312, https://doi.org/10.5194/bg-20-1299-2023, https://doi.org/10.5194/bg-20-1299-2023, 2023
Short summary
Short summary
We found that increasing light intensity compensates for the negative effects of low phosphorus (P) availability on cellular protein and nitrogen contents. Reduced P availability, increasing light intensity, and ocean acidification act synergistically to increase cellular contents of carbohydrate and POC and the allocation of POC to carbohydrate. These regulation mechanisms in Emiliania huxleyi could provide vital information for evaluating carbon cycle in marine ecosystems under global change.
Beatriz Gill-Olivas, Jon Telling, Mark Skidmore, and Martyn Tranter
Biogeosciences, 20, 929–943, https://doi.org/10.5194/bg-20-929-2023, https://doi.org/10.5194/bg-20-929-2023, 2023
Short summary
Short summary
Microbial ecosystems have been found in all subglacial environments sampled to date. Yet, little is known of the sources of energy and nutrients that sustain these microbial populations. This study shows that crushing of sedimentary rocks, which contain organic carbon, carbonate and sulfide minerals, along with previously weathered silicate minerals, produces a range of compounds and nutrients which can be utilised by the diverse suite of microbes that inhabit glacier beds.
Federico Fabisik, Benoit Guieysse, Jonathan Procter, and Maxence Plouviez
Biogeosciences, 20, 687–693, https://doi.org/10.5194/bg-20-687-2023, https://doi.org/10.5194/bg-20-687-2023, 2023
Short summary
Short summary
We show, for the first time, that pure cultures of the cyanobacterium Microcystis aeruginosa can synthesize the potent greenhouse gas N2O using nitrite as substrate. Our findings have broad environmental implications because M. aeruginosa is globally found in freshwater ecosystems and is often the dominant species found in algae blooms. Further research is now needed to determine the occurrence and significance of N2O emissions from ecosystems rich with M. aeruginosa.
Fanny Noirmain, Jean-Luc Baray, Frédéric Tridon, Philippe Cacault, Hermine Billard, Guillaume Voyard, Joël Van Baelen, and Delphine Latour
Biogeosciences, 19, 5729–5749, https://doi.org/10.5194/bg-19-5729-2022, https://doi.org/10.5194/bg-19-5729-2022, 2022
Short summary
Short summary
We present a study linking rain, meteorology, and mountain lake phytoplankton dynamics on the basis of a case study at Aydat (France) in September 2020. The air mass origin mainly influences the rain chemical composition, which depends on the type of rain, convective or stratiform. Our results also highlighted a non-negligible presence of photosynthetic cells in rainwater. The impact of the atmospheric forcing on the lake could play a key role in phytoplankton dynamics in the temperate zone.
Sarah A. Brown, John Paul Balmonte, Adrienne Hoarfrost, Sherif Ghobrial, and Carol Arnosti
Biogeosciences, 19, 5617–5631, https://doi.org/10.5194/bg-19-5617-2022, https://doi.org/10.5194/bg-19-5617-2022, 2022
Short summary
Short summary
Bacteria use extracellular enzymes to cut large organic matter to sizes small enough for uptake. We compared the enzymatic response of surface, mid-water, and deep-ocean bacteria to complex natural substrates. Bacteria in surface and mid-depth waters produced a much wider range of enzymes than those in the deep ocean and may therefore consume a broader range of organic matter. The extent to which organic matter is recycled by bacteria depends in part on its residence time at different depths.
Aaron Ferderer, Zanna Chase, Fraser Kennedy, Kai G. Schulz, and Lennart T. Bach
Biogeosciences, 19, 5375–5399, https://doi.org/10.5194/bg-19-5375-2022, https://doi.org/10.5194/bg-19-5375-2022, 2022
Short summary
Short summary
Ocean alkalinity enhancement has the capacity to remove vast quantities of carbon from the atmosphere, but its effect on marine ecosystems is largely unknown. We assessed the effect of increased alkalinity on a coastal phytoplankton community when seawater was equilibrated and not equilibrated with atmospheric CO2. We found that the phytoplankton community was moderately affected by increased alkalinity and equilibration with atmospheric CO2 had little influence on this effect.
Quentin Devresse, Kevin W. Becker, Arne Bendinger, Johannes Hahn, and Anja Engel
Biogeosciences, 19, 5199–5219, https://doi.org/10.5194/bg-19-5199-2022, https://doi.org/10.5194/bg-19-5199-2022, 2022
Short summary
Short summary
Eddies are ubiquitous in the ocean and alter physical, chemical, and biological processes. However, how they affect organic carbon production and consumption is largely unknown. Here we show how an eddy triggers a cascade effect on biomass production and metabolic activities of phyto- and bacterioplankton. Our results may contribute to the improvement of biogeochemical models used to estimate carbon fluxes in the ocean.
Sania Arif, Heiko Nacke, Elias Schliekmann, Andreas Reimer, Gernot Arp, and Michael Hoppert
Biogeosciences, 19, 4883–4902, https://doi.org/10.5194/bg-19-4883-2022, https://doi.org/10.5194/bg-19-4883-2022, 2022
Short summary
Short summary
The natural enrichment of Chloroflexi (Ktedonobacteria) at the Kilianstollen Marsberg copper mine rocks being exposed to the acidic sulfate-rich leachate led to an investigation of eight metagenomically assembled genomes (MAGs) involved in copper and other transition heavy metal resistance in addition to low pH resistance and aromatic compounds degradation. The present study offers functional insights about a novel cold-adapted Ktedonobacteria MAG extremophily along with other phyla MAGs.
Chunmei Zhang, Huirong Li, Yinxin Zeng, Haitao Ding, Bin Wang, Yangjie Li, Zhongqiang Ji, Yonghong Bi, and Wei Luo
Biogeosciences, 19, 4639–4654, https://doi.org/10.5194/bg-19-4639-2022, https://doi.org/10.5194/bg-19-4639-2022, 2022
Short summary
Short summary
The unique microbial eukaryotic community structure and lower diversity have been demonstrated in five freshwater lakes of the Fildes Peninsula, Antarctica. Stochastic processes and biotic co-occurrence patterns were shown to be important in shaping microbial eukaryotic communities in the area. Our study provides a better understanding of the dynamic patterns and ecological assembly processes of microbial eukaryotic communities in Antarctic oligotrophic lakes (Fildes Peninsula).
Juan Pablo Almeida, Nicholas P. Rosenstock, Susanne K. Woche, Georg Guggenberger, and Håkan Wallander
Biogeosciences, 19, 3713–3726, https://doi.org/10.5194/bg-19-3713-2022, https://doi.org/10.5194/bg-19-3713-2022, 2022
Short summary
Short summary
Fungi living in symbiosis with tree roots can accumulate belowground, forming special tissues than can repel water. We measured the water repellency of organic material incubated belowground and correlated it with fungal growth. We found a positive association between water repellency and root symbiotic fungi. These results are important because an increase in soil water repellency can reduce the release of CO2 from soils into the atmosphere and mitigate the effects of greenhouse gasses.
Karen M. Brandenburg, Björn Rost, Dedmer B. Van de Waal, Mirja Hoins, and Appy Sluijs
Biogeosciences, 19, 3305–3315, https://doi.org/10.5194/bg-19-3305-2022, https://doi.org/10.5194/bg-19-3305-2022, 2022
Short summary
Short summary
Reconstructions of past CO2 concentrations rely on proxy estimates, with one line of proxies relying on the CO2-dependence of stable carbon isotope fractionation in marine phytoplankton. Culturing experiments provide insights into which processes may impact this. We found, however, that the methods with which these culturing experiments are performed also influence 13C fractionation. Caution should therefore be taken when extrapolating results from these experiments to proxy applications.
Weilin Huang, Peter M. van Bodegom, Toni Viskari, Jari Liski, and Nadejda A. Soudzilovskaia
Biogeosciences, 19, 1469–1490, https://doi.org/10.5194/bg-19-1469-2022, https://doi.org/10.5194/bg-19-1469-2022, 2022
Short summary
Short summary
This work focuses on one of the essential pathways of mycorrhizal impact on C cycles: the mediation of plant litter decomposition. We present a model based on litter chemical quality which precludes a conclusive examination of mycorrhizal impacts on soil C. It improves long-term decomposition predictions and advances our understanding of litter decomposition dynamics. It creates a benchmark in quantitatively examining the impacts of plant–microbe interactions on soil C dynamics.
Julie Dinasquet, Estelle Bigeard, Frédéric Gazeau, Farooq Azam, Cécile Guieu, Emilio Marañón, Céline Ridame, France Van Wambeke, Ingrid Obernosterer, and Anne-Claire Baudoux
Biogeosciences, 19, 1303–1319, https://doi.org/10.5194/bg-19-1303-2022, https://doi.org/10.5194/bg-19-1303-2022, 2022
Short summary
Short summary
Saharan dust deposition of nutrients and trace metals is crucial to microbes in the Mediterranean Sea. Here, we tested the response of microbial and viral communities to simulated dust deposition under present and future conditions of temperature and pH. Overall, the effect of the deposition was dependent on the initial microbial assemblage, and future conditions will intensify microbial responses. We observed effects on trophic interactions, cascading all the way down to viral processes.
Ralf Conrad, Pengfei Liu, and Peter Claus
Biogeosciences, 18, 6533–6546, https://doi.org/10.5194/bg-18-6533-2021, https://doi.org/10.5194/bg-18-6533-2021, 2021
Short summary
Short summary
Acetate is an important intermediate during the anaerobic degradation of organic matter. It is consumed by methanogenic and sulfidogenic microorganisms accompanied by stable carbon isotope fractionation. We determined isotope fractionation under different conditions in two paddy soils and two lake sediments and also determined the composition of the microbial communities. Despite a relatively wide range of experimental conditions, the range of fractionation factors was quite moderate.
Natalie R. Cohen, Abigail E. Noble, Dawn M. Moran, Matthew R. McIlvin, Tyler J. Goepfert, Nicholas J. Hawco, Christopher R. German, Tristan J. Horner, Carl H. Lamborg, John P. McCrow, Andrew E. Allen, and Mak A. Saito
Biogeosciences, 18, 5397–5422, https://doi.org/10.5194/bg-18-5397-2021, https://doi.org/10.5194/bg-18-5397-2021, 2021
Short summary
Short summary
A previous study documented an intense hydrothermal plume in the South Pacific Ocean; however, the iron release associated with this plume and the impact on microbiology were unclear. We describe metal concentrations associated with multiple hydrothermal plumes in this region and protein signatures of plume-influenced microbes. Our findings demonstrate that resources released from these systems can be transported away from their source and may alter the physiology of surrounding microbes.
Sabyasachi Bhattacharya, Tarunendu Mapder, Svetlana Fernandes, Chayan Roy, Jagannath Sarkar, Moidu Jameela Rameez, Subhrangshu Mandal, Abhijit Sar, Amit Kumar Chakraborty, Nibendu Mondal, Sumit Chatterjee, Bomba Dam, Aditya Peketi, Ranadhir Chakraborty, Aninda Mazumdar, and Wriddhiman Ghosh
Biogeosciences, 18, 5203–5222, https://doi.org/10.5194/bg-18-5203-2021, https://doi.org/10.5194/bg-18-5203-2021, 2021
Short summary
Short summary
Physicochemical determinants of microbiome architecture across continental shelves–slopes are unknown, so we explored the geomicrobiology along 3 m sediment horizons of seasonal (shallow coastal) and perennial (deep sea) hypoxic zones of the Arabian Sea. Nature, concentration, and fate of the organic matter delivered to the sea floor were found to shape the microbiome across the western Indian margin, under direct–indirect influence of sedimentation rate and water column O2 level.
Aditi Sengupta, Sarah J. Fansler, Rosalie K. Chu, Robert E. Danczak, Vanessa A. Garayburu-Caruso, Lupita Renteria, Hyun-Seob Song, Jason Toyoda, Jacqueline Hager, and James C. Stegen
Biogeosciences, 18, 4773–4789, https://doi.org/10.5194/bg-18-4773-2021, https://doi.org/10.5194/bg-18-4773-2021, 2021
Short summary
Short summary
Conceptual models link microbes with the environment but are untested. We test a recent model using riverbed sediments. We exposed sediments to disturbances, going dry and becoming wet again. As the length of dry conditions got longer, there was a sudden shift in the ecology of microbes, chemistry of organic matter, and rates of microbial metabolism. We propose a new model based on feedbacks initiated by disturbance that cascade across biological, chemical, and functional aspects of the system.
Cora Hörstmann, Eric J. Raes, Pier Luigi Buttigieg, Claire Lo Monaco, Uwe John, and Anya M. Waite
Biogeosciences, 18, 3733–3749, https://doi.org/10.5194/bg-18-3733-2021, https://doi.org/10.5194/bg-18-3733-2021, 2021
Short summary
Short summary
Microbes are the main drivers of productivity and nutrient cycling in the ocean. We present a combined approach assessing C and N uptake and microbial community diversity across ecological provinces in the Southern Ocean and southern Indian Ocean. Provinces showed distinct genetic fingerprints, but microbial activity varied gradually across regions, correlating with nutrient concentrations. Our study advances the biogeographic understanding of microbial diversity across C and N uptake regimes.
Nimrod Wieler, Tali Erickson Gini, Osnat Gillor, and Roey Angel
Biogeosciences, 18, 3331–3342, https://doi.org/10.5194/bg-18-3331-2021, https://doi.org/10.5194/bg-18-3331-2021, 2021
Short summary
Short summary
Biological rock crusts (BRCs) are common microbial-based assemblages covering rocks in drylands. BRCs play a crucial role in arid environments because of the limited activity of plants and soil. Nevertheless, BRC development rates have never been dated. Here we integrated archaeological, microbiological and geological methods to provide a first estimation of the growth rate of BRCs under natural conditions. This can serve as an affordable dating tool in archaeological sites in arid regions.
Michal Elul, Maxim Rubin-Blum, Zeev Ronen, Itay Bar-Or, Werner Eckert, and Orit Sivan
Biogeosciences, 18, 2091–2106, https://doi.org/10.5194/bg-18-2091-2021, https://doi.org/10.5194/bg-18-2091-2021, 2021
Mindaugas Zilius, Irma Vybernaite-Lubiene, Diana Vaiciute, Donata Overlingė, Evelina Grinienė, Anastasija Zaiko, Stefano Bonaglia, Iris Liskow, Maren Voss, Agneta Andersson, Sonia Brugel, Tobia Politi, and Paul A. Bukaveckas
Biogeosciences, 18, 1857–1871, https://doi.org/10.5194/bg-18-1857-2021, https://doi.org/10.5194/bg-18-1857-2021, 2021
Short summary
Short summary
In fresh and brackish waters, algal blooms are often dominated by cyanobacteria, which have the ability to utilize atmospheric nitrogen. Cyanobacteria are also unusual in that they float to the surface and are dispersed by wind-driven currents. Their patchy and dynamic distribution makes it difficult to track their abundance and quantify their effects on nutrient cycling. We used remote sensing to map the distribution of cyanobacteria in a large Baltic lagoon and quantify their contributions.
Saly Jaber, Muriel Joly, Maxence Brissy, Martin Leremboure, Amina Khaled, Barbara Ervens, and Anne-Marie Delort
Biogeosciences, 18, 1067–1080, https://doi.org/10.5194/bg-18-1067-2021, https://doi.org/10.5194/bg-18-1067-2021, 2021
Short summary
Short summary
Our study is of interest to atmospheric scientists and environmental microbiologists, as we show that clouds can be considered a medium where bacteria efficiently degrade and transform amino acids, in competition with chemical processes. As current atmospheric multiphase models are restricted to chemical degradation of organic compounds, our conclusions motivate further model development.
Kahina Djaoudi, France Van Wambeke, Aude Barani, Nagib Bhairy, Servanne Chevaillier, Karine Desboeufs, Sandra Nunige, Mohamed Labiadh, Thierry Henry des Tureaux, Dominique Lefèvre, Amel Nouara, Christos Panagiotopoulos, Marc Tedetti, and Elvira Pulido-Villena
Biogeosciences, 17, 6271–6285, https://doi.org/10.5194/bg-17-6271-2020, https://doi.org/10.5194/bg-17-6271-2020, 2020
Romie Tignat-Perrier, Aurélien Dommergue, Alban Thollot, Olivier Magand, Timothy M. Vogel, and Catherine Larose
Biogeosciences, 17, 6081–6095, https://doi.org/10.5194/bg-17-6081-2020, https://doi.org/10.5194/bg-17-6081-2020, 2020
Short summary
Short summary
The adverse atmospheric environmental conditions do not appear suited for microbial life. We conducted the first global comparative metagenomic analysis to find out if airborne microbial communities might be selected by their ability to resist these adverse conditions. The relatively higher concentration of fungi led to the observation of higher proportions of stress-related functions in air. Fungi might likely resist and survive atmospheric physical stress better than bacteria.
Yanhong Lu, Shunyan Cheung, Ling Chen, Shuh-Ji Kao, Xiaomin Xia, Jianping Gan, Minhan Dai, and Hongbin Liu
Biogeosciences, 17, 6017–6032, https://doi.org/10.5194/bg-17-6017-2020, https://doi.org/10.5194/bg-17-6017-2020, 2020
Short summary
Short summary
Through a comprehensive investigation, we observed differential niche partitioning among diverse ammonia-oxidizing archaea (AOA) sublineages in a typical subtropical estuary. Distinct AOA communities observed at DNA and RNA levels suggested that a strong divergence in ammonia-oxidizing activity among different AOA groups occurs. Our result highlights the importance of identifying major ammonia oxidizers at RNA level in future studies.
Anna-Neva Visser, Scott D. Wankel, Pascal A. Niklaus, James M. Byrne, Andreas A. Kappler, and Moritz F. Lehmann
Biogeosciences, 17, 4355–4374, https://doi.org/10.5194/bg-17-4355-2020, https://doi.org/10.5194/bg-17-4355-2020, 2020
Short summary
Short summary
This study focuses on the chemical reaction between Fe(II) and nitrite, which has been reported to produce high levels of the greenhouse gas N2O. We investigated the extent to which dead biomass and Fe(II) minerals might enhance this reaction. Here, nitrite reduction was highest when both additives were present but less pronounced if only Fe(II) minerals were added. Both reaction systems show distinct differences, rather low N2O levels, and indicated the abiotic production of N2.
Lisa Tanet, Séverine Martini, Laurie Casalot, and Christian Tamburini
Biogeosciences, 17, 3757–3778, https://doi.org/10.5194/bg-17-3757-2020, https://doi.org/10.5194/bg-17-3757-2020, 2020
Short summary
Short summary
Bioluminescent bacteria, the most abundant light-emitting organisms in the ocean, can be free-living, be symbiotic or colonize organic particles. This review suggests that they act as a visual target and may indirectly influence the sequestration of biogenic carbon in oceans by increasing the attraction rate for consumers. We summarize the instrumentation available to quantify this impact in future studies and propose synthetic figures integrating these ecological and biogeochemical concepts.
Michael Lintner, Bianca Biedrawa, Julia Wukovits, Wolfgang Wanek, and Petra Heinz
Biogeosciences, 17, 3723–3732, https://doi.org/10.5194/bg-17-3723-2020, https://doi.org/10.5194/bg-17-3723-2020, 2020
Short summary
Short summary
Foraminifera are unicellular marine organisms that play an important role in the marine element cycle. Changes of environmental parameters such as salinity or temperature have a significant impact on the faunal assemblages. Our experiments show that changing salinity in the German Wadden Sea immediately influences the foraminiferal community. It seems that A. tepida is better adapted to salinity fluctuations than H. germanica.
Kathrin Busch, Ulrike Hanz, Furu Mienis, Benjamin Mueller, Andre Franke, Emyr Martyn Roberts, Hans Tore Rapp, and Ute Hentschel
Biogeosciences, 17, 3471–3486, https://doi.org/10.5194/bg-17-3471-2020, https://doi.org/10.5194/bg-17-3471-2020, 2020
Short summary
Short summary
Seamounts are globally abundant submarine structures that offer great potential to study the impacts and interactions of environmental gradients at a single geographic location. In an exemplary way, we describe potential mechanisms by which a seamount can affect the structure of pelagic and benthic (sponge-)associated microbial communities. We conclude that the geology, physical oceanography, biogeochemistry, and microbiology of seamounts are even more closely linked than currently appreciated.
Alexander Bratek, Justus E. E. van
Beusekom, Andreas Neumann, Tina Sanders, Jana Friedrich, Kay-Christian Emeis, and Kirstin Dähnke
Biogeosciences, 17, 2839–2851, https://doi.org/10.5194/bg-17-2839-2020, https://doi.org/10.5194/bg-17-2839-2020, 2020
Short summary
Short summary
The following paper highlights the importance of benthic N-transformation rates in different sediment types in the southern North Sea as a source of fixed nitrogen for primary producers and also as a sink of fixed nitrogen. Sedimentary fluxes of dissolved inorganic nitrogen support ∼7 to 59 % of the average annual primary production. Semi-permeable and permeable sediments contribute ∼68 % of the total benthic N2 production rates, counteracting eutrophication in the southern North Sea.
Sabine Haalboom, David M. Price, Furu Mienis, Judith D. L. van Bleijswijk, Henko C. de Stigter, Harry J. Witte, Gert-Jan Reichart, and Gerard C. A. Duineveld
Biogeosciences, 17, 2499–2519, https://doi.org/10.5194/bg-17-2499-2020, https://doi.org/10.5194/bg-17-2499-2020, 2020
Short summary
Short summary
Mineral mining in deep-sea hydrothermal settings will lead to the formation of plumes of fine-grained, chemically reactive, suspended matter. Understanding how natural hydrothermal plumes evolve as they disperse from their source, and how they affect their surrounding environment, may help in characterising the behaviour of the diluted part of mining plumes. The natural plume provided a heterogeneous, geochemically enriched habitat conducive to the development of a distinct microbial ecology.
Noelle A. Held, Eric A. Webb, Matthew M. McIlvin, David A. Hutchins, Natalie R. Cohen, Dawn M. Moran, Korinna Kunde, Maeve C. Lohan, Claire Mahaffey, E. Malcolm S. Woodward, and Mak A. Saito
Biogeosciences, 17, 2537–2551, https://doi.org/10.5194/bg-17-2537-2020, https://doi.org/10.5194/bg-17-2537-2020, 2020
Short summary
Short summary
Trichodesmium is a globally important marine nitrogen fixer that stimulates primary production in the surface ocean. We surveyed metaproteomes of Trichodesmium populations across the North Atlantic and other oceans, and we found that they experience simultaneous phosphate and iron stress because of the biophysical limits of nutrient uptake. Importantly, nitrogenase was most abundant during co-stress, indicating the potential importance of this phenotype to global nitrogen and carbon cycling.
Helmke Hepach, Claire Hughes, Karen Hogg, Susannah Collings, and Rosie Chance
Biogeosciences, 17, 2453–2471, https://doi.org/10.5194/bg-17-2453-2020, https://doi.org/10.5194/bg-17-2453-2020, 2020
Short summary
Short summary
Tropospheric iodine takes part in numerous atmospheric chemical cycles, including tropospheric ozone destruction and aerosol formation. Due to its significance for atmospheric processes, it is crucial to constrain its sources and sinks. This paper aims at investigating and understanding features of biogenic iodate-to-iodide reduction in microalgal monocultures. We find that phytoplankton senescence may play a crucial role in the release of iodide to the marine environment.
Roger D. Finlay, Shahid Mahmood, Nicholas Rosenstock, Emile B. Bolou-Bi, Stephan J. Köhler, Zaenab Fahad, Anna Rosling, Håkan Wallander, Salim Belyazid, Kevin Bishop, and Bin Lian
Biogeosciences, 17, 1507–1533, https://doi.org/10.5194/bg-17-1507-2020, https://doi.org/10.5194/bg-17-1507-2020, 2020
Short summary
Short summary
Effects of biological activity on mineral weathering operate at scales ranging from short-term, microscopic interactions to global, evolutionary timescale processes. Microorganisms have had well-documented effects at large spatio-temporal scales, but to establish the quantitative significance of microscopic measurements for field-scale processes, higher-resolution studies of liquid chemistry at local weathering sites and improved upscaling to soil-scale dissolution rates are still required.
Christine Rooks, James Kar-Hei Fang, Pål Tore Mørkved, Rui Zhao, Hans Tore Rapp, Joana R. Xavier, and Friederike Hoffmann
Biogeosciences, 17, 1231–1245, https://doi.org/10.5194/bg-17-1231-2020, https://doi.org/10.5194/bg-17-1231-2020, 2020
Short summary
Short summary
Sponge grounds are known as nutrient sources, providing nitrate and ammonium to the ocean. We found that they also can do the opposite: in six species from Arctic and North Atlantic sponge grounds, we measured high rates of denitrification, which remove these nutrients from the sea. Rates were highest when the sponge tissue got low in oxygen, which happens when sponges stop pumping because of stress. Sponge grounds may become nutrient sinks when exposed to stress.
Cheng Li, Clare E. Reimers, and Yvan Alleau
Biogeosciences, 17, 597–607, https://doi.org/10.5194/bg-17-597-2020, https://doi.org/10.5194/bg-17-597-2020, 2020
Short summary
Short summary
Novel filamentous cable bacteria that grow in the top layer of intertidal mudflat sediment were attracted to electrodes poised at a positive electrical potential. Several diverse morphologies of Desulfobulbaceae filaments, cells, and colonies were observed on the electrode surface. These observations provide information to suggest conditions that will induce cable bacteria to perform electron donation to an electrode, informing future experiments that culture cable bacteria outside of sediment.
Marie Maßmig, Jan Lüdke, Gerd Krahmann, and Anja Engel
Biogeosciences, 17, 215–230, https://doi.org/10.5194/bg-17-215-2020, https://doi.org/10.5194/bg-17-215-2020, 2020
Short summary
Short summary
Little is known about the rates of bacterial element cycling in oxygen minimum zones (OMZs). We measured bacterial production and rates of extracellular hydrolytic enzymes at various in situ oxygen concentrations in the OMZ off Peru. Our field data show unhampered bacterial activity at low oxygen concentrations. Meanwhile bacterial degradation of organic matter substantially contributed to the formation of the OMZ.
Anna T. Kunert, Mira L. Pöhlker, Kai Tang, Carola S. Krevert, Carsten Wieder, Kai R. Speth, Linda E. Hanson, Cindy E. Morris, David G. Schmale III, Ulrich Pöschl, and Janine Fröhlich-Nowoisky
Biogeosciences, 16, 4647–4659, https://doi.org/10.5194/bg-16-4647-2019, https://doi.org/10.5194/bg-16-4647-2019, 2019
Short summary
Short summary
A screening of more than 100 strains from 65 different species revealed that the ice nucleation activity within the fungal genus Fusarium is more widespread than previously assumed. Filtration experiments suggest that the single cell-free Fusarium IN is smaller than 100 kDa (~ 6 nm) and that aggregates can be formed in solution. Exposure experiments, freeze–thaw cycles, and long-term storage tests demonstrate a high stability of Fusarium IN under atmospherically relevant conditions.
Qing Wang, Renbin Zhu, Yanling Zheng, Tao Bao, and Lijun Hou
Biogeosciences, 16, 4113–4128, https://doi.org/10.5194/bg-16-4113-2019, https://doi.org/10.5194/bg-16-4113-2019, 2019
Short summary
Short summary
We investigated abundance, potential activity, and diversity of soil ammonia-oxidizing archaea (AOA) and bacteria (AOB) in five Antarctic tundra patches, including penguin colony, seal colony, and tundra marsh. We have found (1) sea animal colonization increased AOB population size.; (2) AOB contributed to ammonia oxidation rates more than AOA in sea animal colonies; (3) community structures of AOB and AOA were closely related to soil biogeochemical processes associated with animal activities.
Yalda Vasebi, Marco E. Mechan Llontop, Regina Hanlon, David G. Schmale III, Russell Schnell, and Boris A. Vinatzer
Biogeosciences, 16, 1675–1683, https://doi.org/10.5194/bg-16-1675-2019, https://doi.org/10.5194/bg-16-1675-2019, 2019
Short summary
Short summary
Ice nucleation particles (INPs) help ice form at temperatures as high as −4 °C and contribute to the formation of precipitation. Leaf litter contains a high concentration of INPs, but the organisms that produce them are unknown. Here, we cultured two bacteria and one fungus from leaf litter that produce INPs similar to those found in leaf litter. This suggests that leaf litter may be an important habitat of these organisms and supports a role of these organisms as producers of atmospheric INPs.
Cited articles
Agerer, R. A. and Aidl, S. R.:
Distance-related semi-quantitative estimation of the extramatrical ectomycorrhizal mycelia of Cortinarius obtusus and Tylospora asterophora, Mycol. Prog., 3, 57–64, https://doi.org/10.1007/s11557-006-0077-9, 2004.
Akselsson, C., Belyazid, S., Hellsten, S., Klarqvist, M., Pihl-Karlsson, G., Karlsson, P. E., and Lundin, L.:
Assessing the risk of N leaching from forest soils across a steep N deposition gradient in Sweden, Environ. Pollut., 158, 3588–3595, https://doi.org/10.1016/j.envpol.2010.08.012, 2010.
Almeida, J. P., Rosenstock, N. P., Forsmark, B., Bergh, J., and Wallander, H.:
Ectomycorrhizal community composition and function in a spruce forest transitioning between nitrogen and phosphorus limitation, Fungal Ecol., 40, 20–31, https://doi.org/10.1016/j.funeco.2018.05.008, 2019.
Almeida, J. P., Rosenstock, N. P., Woche, S. K., Guggenberger, G., and Wallander, H.:
Nitrophobic ectomycorrhizal fungi are associated with enhanced hydrophobicity of soil organic matter in a Norway spruce forest, Biogeosciences, 19, 3713–3726, https://doi.org/10.5194/bg-19-3713-2022, 2022.
Bahr, A., Ellström, M., Akselsson, C., Ekblad, A., Mikusinska, A., and Wallander, H.: Growth of ectomycorrhizal fungal mycelium along a Norway spruce forest nitrogen deposition gradient and its effect on nitrogen leakage, Soil Biol. Biochem., 59, 38–48, https://doi.org/10.1016/j.soilbio.2013.01.004, 2013.
Bahr, A., Ellström, M., Bergh, J., and Wallander, H.:
Nitrogen leaching and ectomycorrhizal nitrogen retention capacity in a Norway spruce forest fertilized with nitrogen and phosphorus, Plant Soil, 390, 323–335, https://doi.org/10.1007/s11104-015-2408-6, 2015.
Bending, G. D. and Read, D. J.:
The structure and function of the vegetative mycelium of ectomycorrhizal plants: V. Foraging behaviour and translocation of nutrients from exploited litter, New Phytol., 130, 401–409, https://doi.org/10.1111/j.1469-8137.1995.tb01834.x, 1995.
Berner, C., Johansson, T., and Wallander, H.:
Long-term effect of apatite on ectomycorrhizal growth and community structure, Mycorrhiza, 22, 615–621, https://doi.org/10.1007/s00572-012-0438-y, 2012.
Bidartondo, M. I., Ek, H., Wallander, H., and Söderström, B.:
Do nutrient additions alter carbon sink strength of ectomycorrhizal fungi?, New Phytol., 151, 543–550, https://doi.org/10.1046/j.1469-8137.2001.00180.x, 2001.
Binkley, D. and Högberg, P.: Tamm Review: Revisiting the influence of nitrogen deposition on Swedish forests, For. Ecol. Manage., 368, 222–239, https://doi.org/10.1016/j.foreco.2016.02.035, 2016.
Castaño, C., Alday, J. G., Parladé, J., Pera, J., Martínez de Aragón, J., and Bonet, J. A.:
Seasonal dynamics of the ectomycorrhizal fungus Lactarius vinosus are altered by changes in soil moisture and temperature, Soil Biol. Biochem., 115, 253–260, https://doi.org/10.1016/j.soilbio.2017.08.021, 2017.
Clemmensen, K. E., Bahr, A., Ovaskainen, O., Dahlberg, A., Ekblad, A., Wallander, H., Stenlid, J., Finlay, R. D., Wardle, D. A., and Lindahl, B. D.:
Roots and associated fungi drive long-term carbon sequestration in boreal forest, Science (80-.), 340, 1615–1618, https://doi.org/10.1126/science.1231923, 2013.
Coutts, M. P. and Nicoll, B. C.:
Growth and survival of shoots, roots, and mycorrhizal mycelium in clonal Sitka spruce during the first growing season after planting, Can. J. Forest Res., 20, 861–868, https://doi.org/10.1139/x90-115, 1990.
De la Varga, H., Águeda, B., Ágreda, T., Martínez-Peña, F., Parladé, J., and Pera, J.:
Seasonal dynamics of Boletus edulis and Lactarius deliciosus extraradical mycelium in pine forests of central Spain, Mycorrhiza, 23, 391–402, https://doi.org/10.1007/s00572-013-0481-3, 2013.
Du, E., van Doorn, M., and de Vries, W.: Spatially divergent trends of nitrogen versus phosphorus limitation across European forests, Sci. Total Environ., 771, 145391, https://doi.org/10.1016/j.scitotenv.2021.145391, 2021.
Ekblad, A., Wallander, H., Carlsson, R., and Huss-danell, k.:
Fungal biomass in roots and extramatrical mycelium in relation to macronutrients and plant biomass of ectomycorrhizal Pinus sylvestris and Alnus incana, New Phytol., 131, 443–451, https://doi.org/10.1111/j.1469-8137.1995.tb03081.x, 1995.
Ekblad, A., Wallander, H., and Godbold, D. L.:
The production and turnover of extramatrical mycelium of ectomycorrhizal fungi in forest soils-role in carbon cycling, Plant Soil, 366, 1–27, https://doi.org/10.1007/s11104-013-1630-3, 2013.
Ekblad, A., Mikusinska, A., Agren, G. I., Menichetti, L., Wallander, H., Vilgalys, R., Bahr, A., and Eriksson, U.:
Production and turnover of ectomycorrhizal extramatrical mycelial biomass and necromass under elevated CO2 and nitrogen fertilization, New Phytol., 211, 874–885, https://doi.org/10.1111/nph.13961, 2016.
Endrulat, T., Buchmann, N., and Brunner, I. B.: Carbon allocation into different fine-root classes of young Abies alba trees is affected more by phenology than by simulated browsing, PLoS One, 11, 1–15, https://doi.org/10.1371/journal.pone.0154687, 2016.
Falk, W., Reger, B., Uhl, E., Pretzsch, H., and Zimmermann, L.: Half a century of Scots pine forest ecosystem monitoring reveals long-term effects of atmospheric deposition and climate change, Glob. Change Biol., 26, 5796–5815, https://doi.org/10.1111/gcb.15265, 2020.
Falkowski, P., Scholes, R. J., Boyle, E., Canadell, J., Canfield, D., Elser, J., Gruber, N., Hibbard, K., Hogberg, P., Linder, S., Mackenzie, F. T., Moore, B., Pedersen, T., Rosental, Y., Seitzinger, S., Smetacek, V., and Steffen, W.:
The global carbon cycle: A test of our knowledge of earth as a system, Science (80-.), 290, 291–296, https://doi.org/10.1126/science.290.5490.291, 2000.
Fernandez, C. W.:
The advancing mycelial frontier of ectomycorrhizal fungi, New Phytol., 230, 1296–1299, https://doi.org/10.1111/nph.17281, 2021.
Gill, A. L. and Finzi, A. C.:
Belowground carbon flux links biogeochemical cycles and resource-use efficiency at the global scale, Ecol. Lett., 19, 1419–1428, https://doi.org/10.1111/ele.12690, 2016.
Hagenbo, A., Clemmensen, K. E., Finlay, R. D., Kyaschenko, J., Lindahl, B. D., Fransson, P., and Ekblad, A.:
Changes in turnover rather than production regulate biomass of ectomycorrhizal fungal mycelium across a Pinus sylvestris chronosequence, New Phytol., 214, 424–431, https://doi.org/10.1111/nph.14379, 2017.
Hagenbo, A., Kyaschenko, J., Clemmensen, K. E., Lindahl, B. D., and Fransson, P.:
Fungal community shifts underpin declining mycelial production and turnover across a Pinus sylvestris chronosequence, J. Ecol., 106, 490–501, https://doi.org/10.1111/1365-2745.12917, 2018.
Hagenbo, A., Piñuela, Y., Castaño, C., Martínez de Aragón, J., de-Miguel, S., Alday, J. G., and Bonet, J. A.:
Production and turnover of mycorrhizal soil mycelium relate to variation in drought conditions in Mediterranean Pinus pinaster, Pinus sylvestris and Quercus ilex forests, New Phytol., 230, 1609–1622, https://doi.org/10.1111/nph.17012, 2021.
Hagerberg, D. and Wallander, H.: The impact of forest residue removal and wood ash amendment on the growth of the ectomycorrhizal external mycelium, FEMS Microbiol. Ecol., 39, 139–146, https://doi.org/10.1016/S0168-6496(01)00207-0, 2002.
Hagerberg, D., Thelin, G., and Wallander, H.:
The production of ectomycorrhizal mycelium in forests: Relation between forest nutrient status and local mineral sources, Plant Soil, 252, 279–290, https://doi.org/10.1023/A:1024719607740, 2003.
Hansson, K.:
Impact of tree species on carbon in forest soils, PhD thesis, Swedish University of Agricultural sciences, Uppsala, Sweden, 1–56 pp., 2011.
Hedh, J., Wallander, H., and Erland, S.:
Ectomycorrhizal mycelial species composition in apatite amended and non-amended mesh bags buried in a phosphorus-poor spruce forest, Mycol. Res., 112, 681–688, https://doi.org/10.1016/j.mycres.2007.11.008, 2008.
Hedwall, P. O., Nordin, A., Strengbom, J., Brunet, J., and Olsson, B.: Does background nitrogen deposition affect the response of boreal vegetation to fertilization?, Oecologia, 173, 615–624, https://doi.org/10.1007/s00442-013-2638-3, 2013.
Hobbie, E. A.: Carbon allocation to ectomycorrhizal fungi correlates with belowground allocation in culture studies, Ecology, 87, 563–569, https://doi.org/10.1890/05-0755, 2006.
Hobbie, E. A.: Carbon allocation to ectomycorrhizal fungi correlates with belowground allocation in culture studies, Ecology, 87, 563–569, https://doi.org/10.1890/05-0755, 2006.
Högberg, M. N., Högbom, L., and Kleja, D. B.:
Soil microbial community indices as predictors of soil solution chemistry and N leaching in Picea abies (L.) Karst. forests in S. Sweden, Plant Soil, 372, 507–522, https://doi.org/10.1007/s11104-013-1742-9, 2013.
Högberg, M. N., Högberg, P., Wallander, H., and Nilsson, L. O.:
Carbon–nitrogen relations of ectomycorrhizal mycelium across a natural nitrogen supply gradient in boreal forest, New Phytol., 232, 1839–1848, https://doi.org/10.1111/nph.17701, 2021.
Högberg, P., Näsholm, T., Franklin, O., and Högberg, M. N.:
Tamm Review: On the nature of the nitrogen limitation to plant growth in Fennoscandian boreal forests, Forest Ecol. Manag., 403, 161–185, https://doi.org/10.1016/j.foreco.2017.04.045, 2017.
Hodge, A.:
Plastic plants and patchy soils, J. Exp. Bot., 57, 401–411, https://doi.org/10.1093/jxb/eri280, 2006.
ilmenichetti: ilmenichetti/mycelium: Biogeoscience paper appendix, Zenodo [code and data set], https://doi.org/10.5281/zenodo.7799834, 2023.
Kruschke, J. K. and Liddell, T. M.:
The Bayesian New Statistics: Hypothesis testing, estimation, meta-analysis, and power analysis from a Bayesian perspective, Psychon. B. Rev., 25, 178–206, https://doi.org/10.3758/s13423-016-1221-4, 2018.
Iotti, M., Leonardi, M., Lancellotti, E., Salerni, E., Oddis, M., Leonardi, P., Perini, C., Pacioni, G., and Zambonelli, A.:
Spatio-temporal dynamic of tuber magnatum mycelium in natural truffle grounds, PLOS ONE, 9, 1–18, https://doi.org/10.1371/journal.pone.0115921, 2014.
Jansa, J., Finlay, R., Wallander, H., Smith, F. A., and Smith, S. E.:
Role of mycorrhizal symbioses in phosphorus cycling, in: Phosphorus in Action, Springer, Berlin, Heidelberg, https://doi.org/10.1007/978-3-642-15271-9, 137–168, 2011.
Jonard, M., Fürst, A., Verstraeten, A., Thimonier, A., Timmermann, V., Potočić, N., Waldner, P., Benham, S., Hansen, K., Merilä, P., Ponette, Q., de la Cruz, A. C., Roskams, P., Nicolas, M., Croisé, L., Ingerslev, M., Matteucci, G., Decinti, B., Bascietto, M., and Rautio, P.: Tree mineral nutrition is deteriorating in Europe, Glob. Change Biol., 21, 418–430, https://doi.org/10.1111/gcb.12657, 2015.
Jörgensen, K.: Comparing effects of endogenous and anthropogenic nitrogen supply on ectomycorrhizal fungi, PhD thesis, Swedish University of Agricultural sciences, https://publications.slu.se/?file=publ/show&id=114298 (last access: 11 April 2023), 2021.
Karlsson, G. P., Akselsson, C., Hellsten, S., and Karlsson, P. E.: Krondroppsnätet i mellersta Sverige – övervakning av luftföroreningar och dess effekter i skogsmiljön, https://www.diva-portal.org/smash/get/diva2:1091868/FULLTEXT01.pdf (last access: 11 April 2023), 2017.
Kuylenstierna, J. C. I., Hicks, W. K., Cinderby, S., and Cambridge, H.: Critical loads for nitrogen deposition and their exceedance at European scale, Environ. Pollut., 102, 591–598, https://doi.org/10.1016/S0269-7491(98)80087-0, 1998.
Leake, J. R., Donnelly, D. P., Saunders, E. M., Boddy, L., and Read, D. J.:
Rates and quantities of carbon flux to ectomycorrhizal mycelium following 14C pulse labeling of Pinus sylvestris seedlings: Effects of litter patches and interaction a wood-decomposer fungus, Tree Physiol., 21, 71–82, https://doi.org/10.1093/treephys/21.2-3.71, 2001.
Leake, J. R., Duran, A. L., Hardy, K. E., Johnson, I., Beerling, D. J., Banwart, S. A., and Smits, M. M.: Biological weathering in soil: the role of symbiotic root-associated fungi biosensing minerals and directing photosynthate-energy into grain-scale mineral weathering, Mineral. Mag., 72, 85–89, https://doi.org/10.1180/minmag.2008.072.1.85, 2008.
Leppälammi-Kujansuu, J., Ostonen, I., Strömgren, M., Nilsson, L. O., Kleja, D. B., Sah, S. P., and Helmisaari, H. S.:
Effects of long-term temperature and nutrient manipulation on Norway spruce fine roots and mycelia production, Plant Soil, 366, 287–303, https://doi.org/10.1007/s11104-012-1431-0, 2013.
Lilleskov, E. A., Hobbie, E. A., and Horton, T. R.: Conservation of ectomycorrhizal fungi: Exploring the linkages between functional and taxonomic responses to anthropogenic N deposition, Fungal Ecol., 4, 174–183, https://doi.org/10.1016/j.funeco.2010.09.008, 2011.
Malhi, Y., Baldocchi, D. D., and Jarvis, P. G.:
The carbon balance of tropical, temperate and boreal forests, Plant Cell Environ., 22, 715–740, https://doi.org/10.1046/j.1365-3040.1999.00453.x, 1999.
Morel, M., Jacob, C., Fitz, M., Wipf, D., Chalot, M., and Brun, A.:
Characterization and regulation of PiDur3, a permease involved in the acquisition of urea by the ectomycorrhizal fungus Paxillus involutus, Fungal Genet. Biol., 45, 912–921, https://doi.org/10.1016/j.fgb.2008.01.002, 2008.
Pardo, L. H., Fenn, M. E., Goodale, C. L., Geiser, L. H., Driscoll, C. T., Allen, E. B., Baron, J. S., Bobbink, R., Bowman, W. D., Clark, C. M., Emmett, B., Gilliam, F. S., Greaver, T. L., Hall, S. J., Lilleskov, E. A., Liu, L., Lynch, J. A., Nadelhoffer, K. J., Perakis, S. S., Robin-Abbott, M. J., Stoddard, J. L., Weathers, K. C., and Dennis, R. L.: Effects of nitrogen deposition and empirical nitrogen critical loads for ecoregions of the United States, Ecol. Appl., 21, 3049–3082, https://doi.org/10.1890/10-2341.1, 2011.
Peñuelas, J., Poulter, B., Sardans, J., Ciais, P., Van Der Velde, M., Bopp, L., Boucher, O., Godderis, Y., Hinsinger, P., Llusia, J., Nardin, E., Vicca, S., Obersteiner, M., and Janssens, I. A.: Human-induced nitrogen-phosphorus imbalances alter natural and managed ecosystems across the globe, Nat. Commun., 4, https://doi.org/10.1038/ncomms3934, 2013.
Pietikäinen, J., Pettersson, M., and Bååth, E.:
Comparison of temperature effects on soil respiration and bacterial and fungal growth rates, FEMS Microbiol. Ecol., 52, 49–58, https://doi.org/10.1016/j.femsec.2004.10.002, 2005.
Prietzel, J., Falk, W., Reger, B., Uhl, E., Pretzsch, H., and Zimmermann, L.: Half a century of Scots pine forest ecosystem monitoring reveals long-term effects of atmospheric deposition and climate change, Glob. Change Biol., 26, 5796–5815, https://doi.org/10.1111/gcb.15265, 2020.
R Core Team R: A language and environment for statistical
Computing, R Foundation for Statistical Computing, Vienna, Austria,
https://www.R-project.org/ (last access: 11 April 2023), 2013.
Rillig, M. C., Mardatin, N. F., Leifheit, E. F., and Antunes, P. M.: Mycelium of arbuscular mycorrhizal fungi increases soil water repellency and is sufficient to maintain water-stable soil aggregates, Soil Biol. Biochem., 42, 1189–1191, https://doi.org/10.1016/j.soilbio.2010.03.027, 2010.
Rosenqvist, L., Hansen, K., Vesterdal, L., Denier Van Der Gon, H., Van Der Salm, C., Bleeker, A., and Johansson, M.-B.: Nitrogen Deposition and Nitrate Leaching Following Afforestation: Experiences from Oak and Norway Spruce Chronosequences in Denmark, Sweden and the Netherlands, in: Environmental Effects of Afforestation in North-Western Europe, Plant Veg., 1, Dordrecht, Nederland. Springer, 79–108, 2007.
Rosenstock, N. P., Berner, C., Smits, M. M., Krám, P., and Wallander, H.:
The role of phosphorus, magnesium and potassium availability in soil fungal exploration of mineral nutrient sources in Norway spruce forests, New Phytol., 211, 542–553, https://doi.org/10.1111/nph.13928, 2016.
Rosling, A., Lindahl, B. D., and Finlay, R. D.:
Carbon allocation to ectomycorrhizal roots and mycelium colonising different mineral substrates, New Phytol., 162, 795–802, https://doi.org/10.1111/j.1469-8137.2004.01080.x, 2004.
Rousk, J. and Bååth, E.:
Fungal biomass production and turnover in soil estimated using the acetate-in-ergosterol technique, Soil Biol. Biochem., 39, 2173–2177, https://doi.org/10.1016/j.soilbio.2007.03.023, 2007.
Schwartz, E., Hayer, M., Hungate, B. A., Koch, B. J., McHugh, T. A., Mercurio, W., Morrissey, E. M., and Soldanova, K.: Stable isotope probing with 18O-water to investigate microbial growth and death in environmental samples, Curr. Opin. Biotechnol., 41, 14–18, https://doi.org/10.1016/j.copbio.2016.03.003, 2016.
Smith, S. E. and Read, D. J.: Mycorrhizal Symbiosis, 3rd Edn., Academic Press, London, https://doi.org/10.1016/B978-0-12-370526-6.X5001-6, 2008.
Smits, M. M., Bonneville, S., Benning, L. G., Banwart, S. A., and Leake, J. R.: Plant-driven weathering of apatite – the role of an ectomycorrhizal fungus, Geobiology, 10, 445–456, https://doi.org/10.1111/j.1472-4669.2012.00331.x, 2012.
Stan Development Team: RStan: the R interface to Stan, R package version 2.21.8, https://mc-stan.org/ (last access: 11 April 2023), 2021.
Suz, L. M., Bidartondo, M. I., van der Linde, S., and Kuyper, T. W.: Ectomycorrhizas and tipping points in forest ecosystems, New Phytol., 231, 1700–1707, https://doi.org/10.1111/nph.17547, 2021.
Talkner, U., Meiwes, K. J., Potočić, N., Seletković, I., Cools, N., De Vos, B., and Rautio, P.: Phosphorus nutrition of beech (Fagus sylvatica L.) is decreasing in Europe, Ann. Forest Sci., 72, 919–928, https://doi.org/10.1007/s13595-015-0459-8, 2015.
Taniguchi, T., Kitajima, K., Douhan, G. W., Yamanaka, N., and Allen, M. F.: A pulse of summer precipitation after the dry season triggers changes in ectomycorrhizal formation, diversity, and community composition in a Mediterranean forest in California, USA, Mycorrhiza, 28, 665–677, https://doi.org/10.1007/s00572-018-0859-3, 2018.
van der Linde, S., Suz, L. M., Orme, C. D. L., Cox, F., Andreae, H., Asi, E., Atkinson, B., Benham, S., Carroll, C., Cools, N., De Vos, B., Dietrich, H.-P., Eichhorn, J., Gehrmann, J., Grebenc, T., Gweon, H. S., Hansen, K., Jacob, F., Kristofel, F., Lech, P., Manninger, M., Martin, J., Meesenburg, H., Merila, P., Nicolas, M., Pavlenda, P., Rautio, P., Schaub, M., Schrock, H.-W., Seidling, W., Šramek, V., Thimonier, A., Thomsen, I. M., Titeux, H., Vanguelova, E., Verstraeten, A., Vesterdal, L., Waldner, P., Wijk, S., Zhang, Y., Žlindra, D., and Bidartondo, M. I.: Author Correction: Environment and host as large-scale controls of ectomycorrhizal fungi, Nature, 561, E42–E42, https://doi.org//10.1038/s41586-018-0312-y, 2018.
Wallander, H. and Nylund, J.-E.:
Effects of excess nitrogen and phosphorus starvation on the extramatrical mycelium of ectomycorrhizas of Pinus sylvestris L., New Phytol., 120, 495–503, https://doi.org/10.1111/j.1469-8137.1992.tb01798.x, 1992.
Wallander, H. and Pallon, J.:
Temporal changes in the elemental composition of Rhizopogon rhizomorphs during colonization of patches with fresh organic matter or acid-washed sand, Mycologia, 97, 295–303, https://doi.org/10.1080/15572536.2006.11832804, 2005.
Wallander, H., Nilsson, L. O., Hagerberg, D., and Bååth, E.: Estimation of the biomass and seasonal growth of external mycelium of ectomycorrhizal fungi in the field, New Phytol., 151, 753–760, https://doi.org/10.1046/j.0028-646x.2001.00199.x, 2001.
Wallander, H., Johansson, U., Sterkenburg, E., Brandström Durling, M., and Lindahl, B. D.: Production of ectomycorrhizal mycelium peaks during canopy closure in Norway spruce forests, New Phytol., 187, 1124–1134, https://doi.org/10.1111/j.1469-8137.2010.03324.x, 2010.
Wallander, H., Ekblad, A., Godbold, D. L., Johnson, D., Bahr, A., Baldrian, P., Björk, R. G., Kieliszewska-Rokicka, B., Kjøller, R., Kraigher, H., Plassard, C., and Rudawska, M.:
Evaluation of methods to estimate production, biomass and turnover of ectomycorrhizal mycelium in forests soils – A review, Soil Biol. Biochem., 57, 1034–1047, https://doi.org/10.1016/j.soilbio.2012.08.027, 2013.
Yamanaka, T.:
Utilization of inorganic and organic nitrogen in pure cultures by saprotrophic and ectomycorrhizal fungi producing sporophores on urea-treated forest floor, Mycol. Res., 103, 811–816, https://doi.org/10.1017/S0953756298007801, 1999.
Zheng, H., Vesterdal, L., Schmidt, I. K., and Rousk, J.:
Ecoenzymatic stoichiometry can reflect microbial resource limitation, substrate quality, or both in forest soils, Soil Biol. Biochem., 167, 108613, https://doi.org/10.1016/j.soilbio.2022.108613, 2022.
Short summary
In forests, trees allocate a significant amount of carbon belowground to support mycorrhizal symbiosis. In northern forests nitrogen normally regulates this allocation and consequently mycorrhizal fungi growth. In this study we demonstrate that in a conifer forest from Sweden, fungal growth is regulated by phosphorus instead of nitrogen. This is probably due to an increase in nitrogen deposition to soils caused by decades of human pollution that has altered the ecosystem nutrient regime.
In forests, trees allocate a significant amount of carbon belowground to support mycorrhizal...
Altmetrics
Final-revised paper
Preprint