Articles | Volume 9, issue 5
https://doi.org/10.5194/bg-9-1873-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/bg-9-1873-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Reviews and syntheses
| 
29 May 2012
Reviews and syntheses |
| 29 May 2012
Possible source of ancient carbon in phytolith concentrates from harvested grasses
G. M. Santos
Earth System Science, University of California, Irvine, B321 Croul Hall, Irvine CA 92697-3100, USA
A. Alexandre
CEREGE, CNRS, UPCAM-III, Europôle méditerranéen de l'Arbois BP 80, 13545, Aix en Provence cedex 04, France
J. R. Southon
Earth System Science, University of California, Irvine, B321 Croul Hall, Irvine CA 92697-3100, USA
K. K. Treseder
Department of Ecology and Evolutionary Biology, University of California, Irvine CA 92697, USA
R. Corbineau
CEREGE, CNRS, UPCAM-III, Europôle méditerranéen de l'Arbois BP 80, 13545, Aix en Provence cedex 04, France
P. E. Reyerson
Department of Geography, University of Wisconsin-Madison, 550 North Park Street, Madison WI 53706, USA
Related subject area
Biogeochemistry: Organic Biogeochemistry
Recently fixed carbon fuels microbial activity several meters below the soil surface
Environmental and hydrologic controls on sediment and organic carbon export from a subalpine catchment: insights from a time series
Climate and geology overwrite land use effects on soil organic nitrogen cycling on a continental scale
Compositions of dissolved organic matter in the ice-covered waters above the Aurora hydrothermal vent system, Gakkel Ridge, Arctic Ocean
Organic matter characteristics of a rapidly eroding permafrost cliff in NE Siberia (Lena Delta, Laptev Sea region)
Microbial labilization and diversification of pyrogenic dissolved organic matter
Bacterial and eukaryotic intact polar lipids point to in situ production as a key source of labile organic matter in hadal surface sediment of the Atacama Trench
What can we learn from amino acids about oceanic organic matter cycling and degradation?
Bacteriohopanetetrol-x: constraining its application as a lipid biomarker for marine anammox using the water column oxygen gradient of the Benguela upwelling system
Active and passive fluxes of carbon, nitrogen, and phosphorus in the northern South China Sea
Cyanobacteria net community production in the Baltic Sea as inferred from profiling pCO2 measurements
Reviews and syntheses: Heterotrophic fixation of inorganic carbon – significant but invisible flux in environmental carbon cycling
Revised fractional abundances and warm-season temperatures substantially improve brGDGT calibrations in lake sediments
Archaeal intact polar lipids in polar waters: a comparison between the Amundsen and Scotia seas
Reproducible determination of dissolved organic matter photosensitivity
Technical note: Uncovering the influence of methodological variations on the extractability of iron-bound organic carbon
Anthropocene climate warming enhances autochthonous carbon cycling in an upland Arctic lake, Disko Island, West Greenland
Novel hydrocarbon-utilizing soil mycobacteria synthesize unique mycocerosic acids at a Sicilian everlasting fire
Alkenone isotopes show evidence of active carbon concentrating mechanisms in coccolithophores as aqueous carbon dioxide concentrations fall below 7 µmol L−1
Seasonal variability and sources of in situ brGDGT production in a permanently stratified African crater lake
Sediment release of dissolved organic matter to the oxygen minimum zone off Peru
Better molecular preservation of organic matter in an oxic than in a sulfidic depositional environment: evidence from Thalassiphora pelagica (Dinoflagellata, Eocene) cysts
Assessing branched tetraether lipids as tracers of soil organic carbon transport through the Carminowe Creek catchment (southwest England)
The nonconservative distribution pattern of organic matter in the Rajang, a tropical river with peatland in its estuary
Predominance of hexamethylated 6-methyl branched glycerol dialkyl glycerol tetraethers in the Mariana Trench: source and environmental implication
High-pH and anoxic conditions during soil organic matter extraction increases its electron-exchange capacity and ability to stimulate microbial Fe(III) reduction by electron shuttling
Sterol preservation in hypersaline microbial mats
Structural elucidation and environmental distributions of butanetriol and pentanetriol dialkyl glycerol tetraethers (BDGTs and PDGTs)
Distribution and degradation of terrestrial organic matter in the sediments of peat-draining rivers, Sarawak, Malaysian Borneo
Validation of carbon isotope fractionation in algal lipids as a pCO2 proxy using a natural CO2 seep (Shikine Island, Japan)
Composition and cycling of dissolved organic matter from tropical peatlands of coastal Sarawak, Borneo, revealed by fluorescence spectroscopy and parallel factor analysis
Latitudinal variations in δ30Si and δ15N signatures along the Peruvian shelf: quantifying the effects of nutrient utilization versus denitrification over the past 600 years
Diapycnal dissolved organic matter supply into the upper Peruvian oxycline
Composition and vertical flux of particulate organic matter to the oxygen minimum zone of the central Baltic Sea: impact of a sporadic North Sea inflow
Main drivers of transparent exopolymer particle distribution across the surface Atlantic Ocean
Biochemical and structural controls on the decomposition dynamics of boreal upland forest moss tissues
Spatiotemporal transformation of dissolved organic matter along an alpine stream flow path on the Qinghai–Tibet Plateau: importance of source and permafrost degradation
A quest for the biological sources of long chain alkyl diols in the western tropical North Atlantic Ocean
Long-chain diols in rivers: distribution and potential biological sources
Leaf wax n-alkanes in modern plants and topsoils from eastern Georgia (Caucasus) – implications for reconstructing regional paleovegetation
The role of diatom resting spores in pelagic–benthic coupling in the Southern Ocean
Calcium content and high calcium adaptation of plants in karst areas of southwestern Hunan, China
Substrate potential of last interglacial to Holocene permafrost organic matter for future microbial greenhouse gas production
Variation pattern of particulate organic carbon and nitrogen in oceans and inland waters
C5 glycolipids of heterocystous cyanobacteria track symbiont abundance in the diatom Hemiaulus hauckii across the tropical North Atlantic
Molecular fingerprinting of particulate organic matter as a new tool for its source apportionment: changes along a headwater drainage in coarse, medium and fine particles as a function of rainfalls
Variations and determinants of carbon content in plants: a global synthesis
The Holocene sedimentary record of cyanobacterial glycolipids in the Baltic Sea: an evaluation of their application as tracers of past nitrogen fixation
Technical note: An inverse method to relate organic carbon reactivity to isotope composition from serial oxidation
A mechanistic model of an upper bound on oceanic carbon export as a function of mixed layer depth and temperature
Andrea Scheibe, Carlos A. Sierra, and Marie Spohn
Biogeosciences, 20, 827–838, https://doi.org/10.5194/bg-20-827-2023, https://doi.org/10.5194/bg-20-827-2023, 2023
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We explored carbon cycling in soils in three climate zones in Chile down to a depth of 6 m, using carbon isotopes. Our results show that microbial activity several meters below the soil surface is mostly fueled by recently fixed carbon and that strong decomposition of soil organic matter only occurs in the upper decimeters of the soils. The study shows that different layers of the critical zone are tightly connected and that processes in the deep soil depend on recently fixed carbon.
Melissa Sophia Schwab, Hannah Gies, Chantal Valérie Freymond, Maarten Lupker, Negar Haghipour, and Timothy Ian Eglinton
Biogeosciences, 19, 5591–5616, https://doi.org/10.5194/bg-19-5591-2022, https://doi.org/10.5194/bg-19-5591-2022, 2022
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The majority of river studies focus on headwater or floodplain systems, while often neglecting intermediate river segments. Our study on the subalpine Sihl River bridges the gap between streams and lowlands and demonstrates that moderately steep river segments are areas of significant instream alterations, modulating the export of organic carbon over short distances.
Lisa Noll, Shasha Zhang, Qing Zheng, Yuntao Hu, Florian Hofhansl, and Wolfgang Wanek
Biogeosciences, 19, 5419–5433, https://doi.org/10.5194/bg-19-5419-2022, https://doi.org/10.5194/bg-19-5419-2022, 2022
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Cleavage of proteins to smaller nitrogen compounds allows microorganisms and plants to exploit the largest nitrogen reservoir in soils and is considered the bottleneck in soil organic nitrogen cycling. Results from soils covering a European transect show that protein turnover is constrained by soil geochemistry, shifts in climate and associated alterations in soil weathering and should be considered as a driver of soil nitrogen availability with repercussions on carbon cycle processes.
Muhammed Fatih Sert, Helge Niemann, Eoghan P. Reeves, Mats A. Granskog, Kevin P. Hand, Timo Kekäläinen, Janne Jänis, Pamela E. Rossel, Bénédicte Ferré, Anna Silyakova, and Friederike Gründger
Biogeosciences, 19, 2101–2120, https://doi.org/10.5194/bg-19-2101-2022, https://doi.org/10.5194/bg-19-2101-2022, 2022
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We investigate organic matter composition in the Arctic Ocean water column. We collected seawater samples from sea ice to deep waters at six vertical profiles near an active hydrothermal vent and its plume. In comparison to seawater, we found that the organic matter in waters directly affected by the hydrothermal plume had different chemical composition. We suggest that hydrothermal processes may influence the organic matter distribution in the deep ocean.
Charlotte Haugk, Loeka L. Jongejans, Kai Mangelsdorf, Matthias Fuchs, Olga Ogneva, Juri Palmtag, Gesine Mollenhauer, Paul J. Mann, P. Paul Overduin, Guido Grosse, Tina Sanders, Robyn E. Tuerena, Lutz Schirrmeister, Sebastian Wetterich, Alexander Kizyakov, Cornelia Karger, and Jens Strauss
Biogeosciences, 19, 2079–2094, https://doi.org/10.5194/bg-19-2079-2022, https://doi.org/10.5194/bg-19-2079-2022, 2022
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Buried animal and plant remains (carbon) from the last ice age were freeze-locked in permafrost. At an extremely fast eroding permafrost cliff in the Lena Delta (Siberia), we found this formerly frozen carbon well preserved. Our results show that ongoing degradation releases substantial amounts of this carbon, making it available for future carbon emissions. This mobilisation at the studied cliff and also similarly eroding sites bear the potential to affect rivers and oceans negatively.
Aleksandar I. Goranov, Andrew S. Wozniak, Kyle W. Bostick, Andrew R. Zimmerman, Siddhartha Mitra, and Patrick G. Hatcher
Biogeosciences, 19, 1491–1514, https://doi.org/10.5194/bg-19-1491-2022, https://doi.org/10.5194/bg-19-1491-2022, 2022
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Wildfire-derived molecules are ubiquitous in the aquatic environment, but their biological fate remains understudied. We have evaluated the compositional changes that occur to wildfire-derived molecules after incubation with soil microbes. We observe a significant degradation but also a production of numerous new labile molecules. Our results indicate that wildfire-derived molecules can be broken down and the carbon and nitrogen therein can be incorporated into microbial food webs.
Edgart Flores, Sebastian I. Cantarero, Paula Ruiz-Fernández, Nadia Dildar, Matthias Zabel, Osvaldo Ulloa, and Julio Sepúlveda
Biogeosciences, 19, 1395–1420, https://doi.org/10.5194/bg-19-1395-2022, https://doi.org/10.5194/bg-19-1395-2022, 2022
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In this study, we investigate the chemical diversity and abundance of microbial lipids as markers of organic matter sources in the deepest points of the Atacama Trench sediments and compare them to similar lipid stocks in shallower surface sediments and in the overlying water column. We evaluate possible organic matter provenance and some potential chemical adaptations of the in situ microbial community to the extreme conditions of high hydrostatic pressure in hadal realm.
Birgit Gaye, Niko Lahajnar, Natalie Harms, Sophie Anna Luise Paul, Tim Rixen, and Kay-Christian Emeis
Biogeosciences, 19, 807–830, https://doi.org/10.5194/bg-19-807-2022, https://doi.org/10.5194/bg-19-807-2022, 2022
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Amino acids were analyzed in a large number of samples of particulate and dissolved organic matter from coastal regions and the open ocean. A statistical analysis produced two new biogeochemical indicators. An indicator of sinking particle and sediment degradation (SDI) traces the degradation of organic matter from the surface waters into the sediments. A second indicator shows the residence time of suspended matter in the ocean (RTI).
Zoë R. van Kemenade, Laura Villanueva, Ellen C. Hopmans, Peter Kraal, Harry J. Witte, Jaap S. Sinninghe Damsté, and Darci Rush
Biogeosciences, 19, 201–221, https://doi.org/10.5194/bg-19-201-2022, https://doi.org/10.5194/bg-19-201-2022, 2022
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Anaerobic ammonium oxidation (anammox) is an important nitrogen-removal process in the ocean. We assess the distribution of bacteriohopanetetrol-x (BHT-x), used to trace past anammox, along a redox gradient in the water column of the Benguela upwelling system. BHT-x / BHT ratios of >0.18 correspond to the presence of living anammox bacteria and oxygen levels <50 μmol L−1. This allows for a more robust application of BHT-x to trace past marine anammox and deoxygenation in dynamic marine systems.
Jia-Jang Hung, Ching-Han Tung, Zong-Ying Lin, Yuh-ling Lee Chen, Shao-Hung Peng, Yen-Huei Lin, and Li-Shan Tsai
Biogeosciences, 18, 5141–5162, https://doi.org/10.5194/bg-18-5141-2021, https://doi.org/10.5194/bg-18-5141-2021, 2021
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We report measured active and passive fluxes and their controlling mechanisms in the northern South China Sea (NSCS). The total fluxes were higher than most reports in open oceans, indicating the significance of NSCS in atmospheric CO2 uptake and in storing that CO2 in the ocean’s interior. Winter cooling and extreme events enhanced nutrient availability and elevated fluxes. Global warming may have profound impacts on reducing ocean’s uptake and storage of CO2 in subtropical–tropical oceans.
Jens Daniel Müller, Bernd Schneider, Ulf Gräwe, Peer Fietzek, Marcus Bo Wallin, Anna Rutgersson, Norbert Wasmund, Siegfried Krüger, and Gregor Rehder
Biogeosciences, 18, 4889–4917, https://doi.org/10.5194/bg-18-4889-2021, https://doi.org/10.5194/bg-18-4889-2021, 2021
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Based on profiling pCO2 measurements from a field campaign, we quantify the biomass production of a cyanobacteria bloom in the Baltic Sea, the export of which would foster deep water deoxygenation. We further demonstrate how this biomass production can be accurately reconstructed from long-term surface measurements made on cargo vessels in combination with modelled temperature profiles. This approach enables a better understanding of a severe concern for the Baltic’s good environmental status.
Alexander Braun, Marina Spona-Friedl, Maria Avramov, Martin Elsner, Federico Baltar, Thomas Reinthaler, Gerhard J. Herndl, and Christian Griebler
Biogeosciences, 18, 3689–3700, https://doi.org/10.5194/bg-18-3689-2021, https://doi.org/10.5194/bg-18-3689-2021, 2021
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It is known that CO2 fixation by photoautotrophic organisms is the major sink from the atmosphere. While biologists are aware that CO2 fixation also occurs in heterotrophic organisms, this route of inorganic carbon, and its quantitative role, is hardly recognized in biogeochemistry. We demonstrate that a considerable amount of CO2 is fixed annually through anaplerotic reactions in heterotrophic organisms, and a significant quantity of inorganic carbon is temporally sequestered in biomass.
Jonathan H. Raberg, David J. Harning, Sarah E. Crump, Greg de Wet, Aria Blumm, Sebastian Kopf, Áslaug Geirsdóttir, Gifford H. Miller, and Julio Sepúlveda
Biogeosciences, 18, 3579–3603, https://doi.org/10.5194/bg-18-3579-2021, https://doi.org/10.5194/bg-18-3579-2021, 2021
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BrGDGT lipids are a proxy for temperature in lake sediments, but other parameters like pH can influence them, and seasonality can affect the temperatures they record. We find a warm-season bias at 43 new high-latitude sites. We also present a new method that deconvolves the effects of temperature, pH, and conductivity and generate global calibrations for these variables. Our study provides new paleoclimate tools, insight into brGDGTs at the biochemical level, and a new method for future study.
Charlotte L. Spencer-Jones, Erin L. McClymont, Nicole J. Bale, Ellen C. Hopmans, Stefan Schouten, Juliane Müller, E. Povl Abrahamsen, Claire Allen, Torsten Bickert, Claus-Dieter Hillenbrand, Elaine Mawbey, Victoria Peck, Aleksandra Svalova, and James A. Smith
Biogeosciences, 18, 3485–3504, https://doi.org/10.5194/bg-18-3485-2021, https://doi.org/10.5194/bg-18-3485-2021, 2021
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Long-term ocean temperature records are needed to fully understand the impact of West Antarctic Ice Sheet collapse. Glycerol dialkyl glycerol tetraethers (GDGTs) are powerful tools for reconstructing ocean temperature but can be difficult to apply to the Southern Ocean. Our results show active GDGT synthesis in relatively warm depths of the ocean. This research improves the application of GDGT palaeoceanographic proxies in the Southern Ocean.
Alec W. Armstrong, Leanne Powers, and Michael Gonsior
Biogeosciences, 18, 3367–3390, https://doi.org/10.5194/bg-18-3367-2021, https://doi.org/10.5194/bg-18-3367-2021, 2021
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Living things decay into organic matter, which can dissolve into water (like tea brewing). Tea receives its color by absorbing light. Similarly, this material absorbs light, which can then cause chemical reactions that change it. By measuring changes in these optical properties, we found that materials from some places are more sensitive to light than others. Comparing sensitivity to light helps us understand where these materials come from and what happens as they move through water.
Ben J. Fisher, Johan C. Faust, Oliver W. Moore, Caroline L. Peacock, and Christian März
Biogeosciences, 18, 3409–3419, https://doi.org/10.5194/bg-18-3409-2021, https://doi.org/10.5194/bg-18-3409-2021, 2021
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Organic carbon can be protected from microbial degradation in marine sediments through association with iron minerals on 1000-year timescales. Despite the importance of this carbon sink, our spatial and temporal understanding of iron-bound organic carbon interactions globally is poor. Here we show that caution must be applied when comparing quantification of iron-bound organic carbon extracted by different methods as the extraction strength and method specificity can be highly variable.
Mark A. Stevenson, Suzanne McGowan, Emma J. Pearson, George E. A. Swann, Melanie J. Leng, Vivienne J. Jones, Joseph J. Bailey, Xianyu Huang, and Erika Whiteford
Biogeosciences, 18, 2465–2485, https://doi.org/10.5194/bg-18-2465-2021, https://doi.org/10.5194/bg-18-2465-2021, 2021
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We link detailed stable isotope and biomarker analyses from the catchments of three Arctic upland lakes on Disko Island (West Greenland) to a recent dated sediment core to understand how carbon cycling has changed over the past ~500 years. We find that the carbon deposited in sediments in these upland lakes is predominately sourced from in-lake production due to the catchment's limited terrestrial vegetation and elevation and that recent increases in algal production link with climate change.
Nadine T. Smit, Laura Villanueva, Darci Rush, Fausto Grassa, Caitlyn R. Witkowski, Mira Holzheimer, Adriaan J. Minnaard, Jaap S. Sinninghe Damsté, and Stefan Schouten
Biogeosciences, 18, 1463–1479, https://doi.org/10.5194/bg-18-1463-2021, https://doi.org/10.5194/bg-18-1463-2021, 2021
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Soils from an everlasting fire (gas seep) in Sicily, Italy, reveal high relative abundances of novel uncultivated mycobacteria and unique 13C-depleted mycocerosic acids (multi-methyl branched fatty acids) close to the main gas seep. Our results imply that mycocerosic acids in combination with their depleted δ13C values offer a new biomarker tool to study the role of soil mycobacteria as hydrocarbon consumers in the modern and past global carbon cycle.
Marcus P. S. Badger
Biogeosciences, 18, 1149–1160, https://doi.org/10.5194/bg-18-1149-2021, https://doi.org/10.5194/bg-18-1149-2021, 2021
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Reconstructing ancient atmospheric CO2 is an important aim of palaeoclimate science in order to understand the Earth's climate system. One method, the alkenone proxy based on molecular fossils of coccolithophores, has been recently shown to be ineffective at low-to-moderate CO2 levels. In this paper I show that this is likely due to changes in the biogeochemistry of the coccolithophores when there is low carbon availability, but for much of the Cenozoic the alkenone proxy should have utility.
Loes G. J. van Bree, Francien Peterse, Allix J. Baxter, Wannes De Crop, Sigrid van Grinsven, Laura Villanueva, Dirk Verschuren, and Jaap S. Sinninghe Damsté
Biogeosciences, 17, 5443–5463, https://doi.org/10.5194/bg-17-5443-2020, https://doi.org/10.5194/bg-17-5443-2020, 2020
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Branched glycerol dialkyl glycerol tetraethers (brGDGTs) are used as a paleothermometer based on their temperature dependence in global soils, but aquatic production complicates their use in lakes. BrGDGTs in the water column of Lake Chala, East Africa, respond to oxygen conditions and mixing. Changes in their signal can be linked to bacterial community composition rather than membrane adaptation to changing conditions. Their integrated signal in the sediment reflects mean air temperature.
Alexandra N. Loginova, Andrew W. Dale, Frédéric A. C. Le Moigne, Sören Thomsen, Stefan Sommer, David Clemens, Klaus Wallmann, and Anja Engel
Biogeosciences, 17, 4663–4679, https://doi.org/10.5194/bg-17-4663-2020, https://doi.org/10.5194/bg-17-4663-2020, 2020
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We measured dissolved organic carbon (DOC), nitrogen (DON) and matter (DOM) optical properties in pore waters and near-bottom waters of the eastern tropical South Pacific off Peru. The difference between diffusion-driven and net fluxes of DOC and DON and qualitative changes in DOM optical properties suggested active microbial utilisation of the released DOM at the sediment–water interface. Our results suggest that the sediment release of DOM contributes to microbial processes in the area.
Gerard J. M. Versteegh, Alexander J. P. Houben, and Karin A. F. Zonneveld
Biogeosciences, 17, 3545–3561, https://doi.org/10.5194/bg-17-3545-2020, https://doi.org/10.5194/bg-17-3545-2020, 2020
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Anoxic sediments mostly contain much more organic matter than oxic ones, and therefore organic matter in anoxic settings is often considered to be preserved better than in oxic settings. However, through the analysis of the same fossil dinoflagellate cyst species from both oxic and anoxic settings, we show that at a molecular level the preservation in the oxic sediments may be better since in the anoxic setting the cyst macromolecule has been altered by postdepositional modification.
Jingjing Guo, Miriam Glendell, Jeroen Meersmans, Frédérique Kirkels, Jack J. Middelburg, and Francien Peterse
Biogeosciences, 17, 3183–3201, https://doi.org/10.5194/bg-17-3183-2020, https://doi.org/10.5194/bg-17-3183-2020, 2020
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The fluxes of soil organic carbon (OC) transport from land to sea are poorly constrained, mostly due to the lack of a specific tracer for soil OC. Here we evaluate the use of specific molecules derived from soil bacteria as a tracer for soil OC in a small river catchment. We find that the initial soil signal is lost upon entering the aquatic environment. However, the local environmental history of the catchment is reflected by these molecules in the lake sediments that act as their sink.
Zhuo-Yi Zhu, Joanne Oakes, Bradley Eyre, Youyou Hao, Edwin Sien Aun Sia, Shan Jiang, Moritz Müller, and Jing Zhang
Biogeosciences, 17, 2473–2485, https://doi.org/10.5194/bg-17-2473-2020, https://doi.org/10.5194/bg-17-2473-2020, 2020
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Samples were collected in August 2016 in the Rajang River and its estuary, with tropical forest in the river basin and peatland in the estuary. Organic matter composition was influenced by transportation in the river basin, whereas peatland added clear biodegraded parts to the fluvial organic matter, which implies modification of the initial lability and/or starting points in the subsequent degradation and alternation processes after the organic matter enters the sea.
Wenjie Xiao, Yasong Wang, Yongsheng Liu, Xi Zhang, Linlin Shi, and Yunping Xu
Biogeosciences, 17, 2135–2148, https://doi.org/10.5194/bg-17-2135-2020, https://doi.org/10.5194/bg-17-2135-2020, 2020
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The hadal zone (6–11 km depth) is the least explored habitat on Earth. We studied microbial branched glycerol dialkyl glycerol tetraethers (brGDGTs) in the Challenger Deep, Mariana Trench. One unique feature is the strong predominance of 6-methyl brGDGT, which likely reflects an adaption of brGDGT-producing bacteria to alkaline seawater and low temperature. BrGDGTs, with elemental and isotopic data, suggest an autochthonous product for brGDGT. A new approach is proposed for brGDGT sourcing.
Yuge Bai, Edisson Subdiaga, Stefan B. Haderlein, Heike Knicker, and Andreas Kappler
Biogeosciences, 17, 683–698, https://doi.org/10.5194/bg-17-683-2020, https://doi.org/10.5194/bg-17-683-2020, 2020
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Biogeochemical processes of SOM are key for greenhouse gas emission and water quality. We extracted SOM by water or by NaOH–HCl under oxic–anoxic conditions. Chemical and anoxic extractions lead to higher SOM electron exchange capacities, resulting in stimulation of microbial Fe(III) reduction. Therefore, aqueous pH-neutral SOM extracts should be used to reflect environmental SOM redox processes, and artifacts of chemical extractions need to be considered when evaluating SOM redox processes.
Yan Shen, Volker Thiel, Pablo Suarez-Gonzalez, Sebastiaan W. Rampen, and Joachim Reitner
Biogeosciences, 17, 649–666, https://doi.org/10.5194/bg-17-649-2020, https://doi.org/10.5194/bg-17-649-2020, 2020
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Today, sterols are widespread in plants, animals, and fungi but are almost absent in the oldest rocks. Microbial mats, representing the earliest complex ecosystems on Earth, were omnipresent in Precambrian marine environments and may have degraded the sterols at that time. Here we analyze the distribution of sterols through a microbial mat. This provides insight into how variations in biological and nonbiological factors affect the preservation of sterols in modern and ancient microbial mats.
Sarah Coffinet, Travis B. Meador, Lukas Mühlena, Kevin W. Becker, Jan Schröder, Qing-Zeng Zhu, Julius S. Lipp, Verena B. Heuer, Matthew P. Crump, and Kai-Uwe Hinrichs
Biogeosciences, 17, 317–330, https://doi.org/10.5194/bg-17-317-2020, https://doi.org/10.5194/bg-17-317-2020, 2020
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This study deals with two membrane lipids called BDGTs and PDGTs. Membrane lipids are molecules forming the cell envelope of all organisms. Different organisms produce different lipids thus they can be used to detect the presence of specific organisms in the environment. We analyzed the structure of these new lipids and looked for potential producers. We found that they are likely made by microbes emitting methane below the sediment surface and could be used to track these specific microbes.
Ying Wu, Kun Zhu, Jing Zhang, Moritz Müller, Shan Jiang, Aazani Mujahid, Mohd Fakharuddin Muhamad, and Edwin Sien Aun Sia
Biogeosciences, 16, 4517–4533, https://doi.org/10.5194/bg-16-4517-2019, https://doi.org/10.5194/bg-16-4517-2019, 2019
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Our understanding of terrestrial organic matter (TOM) in tropical peat-draining rivers remains limited, especially in Southeast Asia. We explored the characteristics of TOM via bulk parameters and lignin phenols of sediment in Malaysia. This showed that the most important plant source of the organic matter in these rivers is woody angiosperm C3 plants with limited diagenetic alteration. This slower degradation of TOM may be a link to higher total nitrogen content, especially for the small river.
Caitlyn R. Witkowski, Sylvain Agostini, Ben P. Harvey, Marcel T. J. van der Meer, Jaap S. Sinninghe Damsté, and Stefan Schouten
Biogeosciences, 16, 4451–4461, https://doi.org/10.5194/bg-16-4451-2019, https://doi.org/10.5194/bg-16-4451-2019, 2019
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Carbon dioxide concentrations (pCO2) in the atmosphere play an integral role in Earth system dynamics, especially climate. Past climates help us understand future ones, but reconstructing pCO2 over the geologic record remains a challenge. This research demonstrates new approaches for exploring past pCO2 via the carbon isotope fractionation in general algal lipids, which we test over a high CO2 gradient from a naturally occurring CO2 seep.
Yongli Zhou, Patrick Martin, and Moritz Müller
Biogeosciences, 16, 2733–2749, https://doi.org/10.5194/bg-16-2733-2019, https://doi.org/10.5194/bg-16-2733-2019, 2019
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We found that peatlands in coastal Sarawak, Borneo, export extremely humified organic matter, which dominates the riverine organic matter pool and conservatively mixes with seawater, while the freshly produced fraction is low and stable in concentration at all salinities. We estimated that terrigenous fractions, which showed high photolability, still account for 20 % of the coastal dissolved organic carbon pool, implying the importance of peat-derived organic matter in the coastal carbon cycle.
Kristin Doering, Claudia Ehlert, Philippe Martinez, Martin Frank, and Ralph Schneider
Biogeosciences, 16, 2163–2180, https://doi.org/10.5194/bg-16-2163-2019, https://doi.org/10.5194/bg-16-2163-2019, 2019
Alexandra N. Loginova, Sören Thomsen, Marcus Dengler, Jan Lüdke, and Anja Engel
Biogeosciences, 16, 2033–2047, https://doi.org/10.5194/bg-16-2033-2019, https://doi.org/10.5194/bg-16-2033-2019, 2019
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High primary production in the Peruvian upwelling system is followed by rapid heterotrophic utilization of organic matter and supports the formation of one of the most intense oxygen minimum zones (OMZs) in the world. Here, we estimated vertical fluxes of oxygen and dissolved organic matter (DOM) from the surface to the OMZ. Our results suggest that DOM remineralization substantially reduces oxygen concentration in the upper water column and controls the shape of the upper oxycline.
Carolina Cisternas-Novoa, Frédéric A. C. Le Moigne, and Anja Engel
Biogeosciences, 16, 927–947, https://doi.org/10.5194/bg-16-927-2019, https://doi.org/10.5194/bg-16-927-2019, 2019
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We investigate the composition and vertical fluxes of POM in two deep basins of the Baltic Sea (GB: Gotland Basin and LD: Landsort Deep). The two basins showed different O2 regimes resulting from the intrusion of oxygen-rich water from the North Sea that ventilated the deep waters in GB, but not in LD.
In GB, O2 intrusions lead to a high abundance of manganese oxides that aggregate with POM, altering its composition and vertical flux and contributing to a higher POC transfer efficiency in GB.
Marina Zamanillo, Eva Ortega-Retuerta, Sdena Nunes, Pablo Rodríguez-Ros, Manuel Dall'Osto, Marta Estrada, Maria Montserrat Sala, and Rafel Simó
Biogeosciences, 16, 733–749, https://doi.org/10.5194/bg-16-733-2019, https://doi.org/10.5194/bg-16-733-2019, 2019
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Many marine microorganisms produce polysaccharide-rich transparent exopolymer particles (TEPs) for rather unknown reasons but with important consequences for the ocean carbon cycle, sea–air gas exchange and formation of organic aerosols. Here we compare surface–ocean distributions of TEPs and physical, chemical and biological variables along a N–S transect in the Atlantic Ocean. Our data suggest that phytoplankton and not bacteria are the main TEP producers, and solar radiation acts as a sink.
Michael Philben, Sara Butler, Sharon A. Billings, Ronald Benner, Kate A. Edwards, and Susan E. Ziegler
Biogeosciences, 15, 6731–6746, https://doi.org/10.5194/bg-15-6731-2018, https://doi.org/10.5194/bg-15-6731-2018, 2018
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We explored the relationship between chemical composition and the temperature sensitivity of moss decomposition using 959-day lab incubations. Mass loss was low despite the predominance of carbohydrates, indicating the persistence of labile C. Scanning electron microscopy revealed little change in the moss cell-wall structure. These results suggest that the moss cell-wall matrix protects labile C from decomposition, contributing to the globally important stocks of moss-derived C.
Yinghui Wang, Robert G. M. Spencer, David C. Podgorski, Anne M. Kellerman, Harunur Rashid, Phoebe Zito, Wenjie Xiao, Dandan Wei, Yuanhe Yang, and Yunping Xu
Biogeosciences, 15, 6637–6648, https://doi.org/10.5194/bg-15-6637-2018, https://doi.org/10.5194/bg-15-6637-2018, 2018
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With global warming, thawing of permafrost releases dissolved organic matter (DOM) into streams. By analyzing DOM along an alpine stream on the Qinghai–Tibet Plateau, we found DOM was mainly from the active layer, but with deepening of the active layer, the contribution of the deep permafrost layer increased, causing a change in the chemical composition of DOM. From the head- to downstream, DOM is undergoing rapid degradation, but some components are persistent and can be transported downstream.
Sergio Balzano, Julie Lattaud, Laura Villanueva, Sebastiaan W. Rampen, Corina P. D. Brussaard, Judith van Bleijswijk, Nicole Bale, Jaap S. Sinninghe Damsté, and Stefan Schouten
Biogeosciences, 15, 5951–5968, https://doi.org/10.5194/bg-15-5951-2018, https://doi.org/10.5194/bg-15-5951-2018, 2018
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We tried to identify the microbes which biosynthesize a class of lipids widespread in seawater, the long chain alkyl diols (LCDs). We could not find any microorganism likely involved in the production of LCDs. The amounts of LCDs found are too high to be produced by living organisms and are likely to be part of the refractory organic matter persisting for long periods in the water column.
Julie Lattaud, Frédérique Kirkels, Francien Peterse, Chantal V. Freymond, Timothy I. Eglinton, Jens Hefter, Gesine Mollenhauer, Sergio Balzano, Laura Villanueva, Marcel T. J. van der Meer, Ellen C. Hopmans, Jaap S. Sinninghe Damsté, and Stefan Schouten
Biogeosciences, 15, 4147–4161, https://doi.org/10.5194/bg-15-4147-2018, https://doi.org/10.5194/bg-15-4147-2018, 2018
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Long-chain diols (LCDs) are biomarkers that occur widespread in marine environments and also in lakes and rivers. In this study, we looked at the distribution of LCDs in three river systems (Godavari, Danube, and Rhine) in relation to season, precipitation, and temperature. We found out that the LCDs are likely being produced in calm areas of the river systems and that marine LCDs have a different distribution than riverine LCDs.
Marcel Bliedtner, Imke K. Schäfer, Roland Zech, and Hans von Suchodoletz
Biogeosciences, 15, 3927–3936, https://doi.org/10.5194/bg-15-3927-2018, https://doi.org/10.5194/bg-15-3927-2018, 2018
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In this study, we systematically analyze leaf wax derived n-alkane patterns in eastern Georgia to test their potential for paleoenvironmental reconstructions in the semi-humid to semi-arid central southern Caucasus region. We investigated the influence of vegetation types on the leaf wax signal in modern plants and topsoil material. Our results show distinct and systematic differences in the n-alkane patterns between vegetation types and prove their potential for vegetation reconstructions.
Mathieu Rembauville, Stéphane Blain, Clara Manno, Geraint Tarling, Anu Thompson, George Wolff, and Ian Salter
Biogeosciences, 15, 3071–3084, https://doi.org/10.5194/bg-15-3071-2018, https://doi.org/10.5194/bg-15-3071-2018, 2018
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Sinking phytoplankton from the surface ocean provide the principal energy source to deep-ocean ecosystems. Our aim was to understand how different phytoplankton communities impact the chemical nature of this sinking material. We show certain types of phytoplankton can preferentially export energy-rich storage compounds to the seafloor. Any climate-driven effects on phytoplankton community structure could thus impact remote deep-ocean ecosystems thousands of kilometres beneath the surface.
Xiaocong Wei, Xiangwen Deng, Wenhua Xiang, Pifeng Lei, Shuai Ouyang, Hongfang Wen, and Liang Chen
Biogeosciences, 15, 2991–3002, https://doi.org/10.5194/bg-15-2991-2018, https://doi.org/10.5194/bg-15-2991-2018, 2018
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Karst is a kind of typical calcium-rich environment, which is widely distributed. We measured the Ca2+ content of 41 plant species, as well as soil total Ca2+ and exchange Ca2+. We found out that different plants have different ways to high Ca2+ adaptation. According to the different high Ca2+ adaptation of the 17 dominant species, we divided them into 3 categories: Ca-indifferent plants, high-Ca plants and low-Ca plants. Our results can provide a theoretical basis for vegetation restoration.
Janina G. Stapel, Georg Schwamborn, Lutz Schirrmeister, Brian Horsfield, and Kai Mangelsdorf
Biogeosciences, 15, 1969–1985, https://doi.org/10.5194/bg-15-1969-2018, https://doi.org/10.5194/bg-15-1969-2018, 2018
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Climate warming in the Arctic results in thawing of permafrost deposits. This promotes the accessibility of freeze-locked old organic matter (OM) accumulated during the past. Characterizing OM of different depositional ages, we were able to show that OM from last glacial Yedoma deposits possess the highest potential to provide organic substrates such as acetate for microbial greenhouse gas production and therefore to accelerate the carbon–climate feedback cycle during ongoing global warming.
Changchun Huang, Quanliang Jiang, Ling Yao, Hao Yang, Chen Lin, Tao Huang, A-Xing Zhu, and Yimin Zhang
Biogeosciences, 15, 1827–1841, https://doi.org/10.5194/bg-15-1827-2018, https://doi.org/10.5194/bg-15-1827-2018, 2018
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The latitudinal dependency of POC / PON in ocean and inland water is significant, regulated by trophic state and climate, etc. factors. POC / PON significantly increased from coastal water (6.89 ± 2.38) to open ocean (7.59 ± 4.22) with the increasing rate of 0.0024 / km. The re-examination of the global relationship between, and variations in, POC and PON could be important for the global and regional coupling between the carbon and nitrogen cycles in the ocean and freshwater.
Nicole J. Bale, Tracy A. Villareal, Ellen C. Hopmans, Corina P. D. Brussaard, Marc Besseling, Denise Dorhout, Jaap S. Sinninghe Damsté, and Stefan Schouten
Biogeosciences, 15, 1229–1241, https://doi.org/10.5194/bg-15-1229-2018, https://doi.org/10.5194/bg-15-1229-2018, 2018
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Associations between diatoms and N-fixing cyanobacteria (diatom–diazotroph associations, DDAs) play an important role in the N cycle of the tropical North Atlantic. Heterocysts are the site of N fixation and contain unique glycolipids. We measured these glycolipids in the water column and surface sediment from the tropical North Atlantic. We found a significant correlation between the concentration of glycolipid and of DDAs, strengthening their application as biomarkers.
Laurent Jeanneau, Richard Rowland, and Shreeram Inamdar
Biogeosciences, 15, 973–985, https://doi.org/10.5194/bg-15-973-2018, https://doi.org/10.5194/bg-15-973-2018, 2018
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The source of particulate organic matter in headwaters during storm events remains an open question. We use the molecular composition of organic matter sampled during four spring–summer storms and compare it to potential sources. We identify litter, streambed and vicinal soils as the main sources of particulate organic matter. Their proportions depend on (i) the size of the catchment and (ii) the rain event.
Suhui Ma, Feng He, Di Tian, Dongting Zou, Zhengbing Yan, Yulong Yang, Tiancheng Zhou, Kaiyue Huang, Haihua Shen, and Jingyun Fang
Biogeosciences, 15, 693–702, https://doi.org/10.5194/bg-15-693-2018, https://doi.org/10.5194/bg-15-693-2018, 2018
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Plant carbon (C) content is critical to the assessment of the global C cycle. Our results showed that the global average C contents in organs were significantly lower than a canonical value of 50 %. Plant C content tended to decrease with increasing latitude, and life form explained more variation than climate. Our findings suggest that specific C content values of different organs and life forms should be incorporated into the estimations of regional and global vegetation biomass C stocks.
Martina Sollai, Ellen C. Hopmans, Nicole J. Bale, Anchelique Mets, Lisa Warden, Matthias Moros, and Jaap S. Sinninghe Damsté
Biogeosciences, 14, 5789–5804, https://doi.org/10.5194/bg-14-5789-2017, https://doi.org/10.5194/bg-14-5789-2017, 2017
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The Baltic Sea is characterized by recurring summer phytoplankton blooms, dominated by a few cyanobacterial species. These bacteria are able to use dinitrogen gas as the source for nitrogen and produce very specific lipids. We analyzed these lipids in a sediment core to study their presence over the past 7000 years. This reveals that cyanobacterial blooms have not only occurred in the last decades but were common at times when the Baltic was connected to the North Sea.
Jordon D. Hemingway, Daniel H. Rothman, Sarah Z. Rosengard, and Valier V. Galy
Biogeosciences, 14, 5099–5114, https://doi.org/10.5194/bg-14-5099-2017, https://doi.org/10.5194/bg-14-5099-2017, 2017
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The balance between organic matter (OM) fixation and decay is a major control on atmospheric CO2 concentrations. Understanding the environmental, chemical, and physical mechanisms that control the distribution of OM decay rates is therefore critical for constraining the global carbon cycle. In this manuscript, we derive a method to relate OM reactivity to its isotope composition using a kinetic model and provide a novel framework to discern the controls on OM decay rates.
Zuchuan Li and Nicolas Cassar
Biogeosciences, 14, 5015–5027, https://doi.org/10.5194/bg-14-5015-2017, https://doi.org/10.5194/bg-14-5015-2017, 2017
Cited articles
Abuzinadah, R. A. and Read, D. J.: The role of proteins in the nitrogen nutrition of ectomycorrhizal plants – I. Utilization of peptides and proteins by ectomycorrhizal fungi, New Phytol., 103, 481–493, 1986.
Alam, A. K. M. M., Xie, S., and Wallis, L. A.: Reconstructing late Holocene palaeoenvironments in Bangladesh: phytolith analysis of archaeological soils from Somapura Mahavihara site in the Paharpur area, Badalgacchi Upazila, Naogaon District, Bangladesh, J. Archaeol. Sci., 36, 504–512, 2009.
Alexandre, A., Meunier, J., Colin, F., and Koud, J.: Plant impact on the biogeochemical cycle of silicon and related weathering processes, Geochim. Cosmochim. Ac., 61, 677–682, 1997.
Alexandre, A., Meunier, J., Mariotti, A., and Soubies, F.: Late Holocene paleoenvironmental record from a latosol at Salitre (Southern Central Brazil): phytolith and carbon isotope evidence, Quaternary Res., 51, 187–194, 1999.
Alexandre, A., Bouvet, M., and Abbadie, L.: The role ofsavannas in the terrestrial Si cycle: a case-study from Lamto, Ivory Coast, Global Planet. Change, 78, 162–169, https://doi.org/10.1016/j.gloplacha.2011.06.007, 2011.
Baisden, W. and Parfitt, R.: Bomb C-14 enrichment indicates decadal C pool in deep soil?, Biogeochemistry, 85, 59–68, 2007.
Bajwa, R. and Read, D.: Utilization of mineral and amino-N sources by the ericoid mycorrhizalendophyte Hymenoscyphusericaeand by mycorrhizal and nonmycorrhizal seedlings of Vaccinium, T. Brit. Mycol. Soc., 87, 269–277, 1986.
Bardgett, R. D., Streeter, T. C., and Bol, R.: Soil microbes compete effectively with plants for organic-nitrogen inputs to temperate grasslands, Ecology, 84, 1277–1287, 2003.
Bauer, P., Elbaum, R., and Weiss, I. M.: Calcium and silicon mineralization in land plants: transport, structure and function, Plant Sci., 180, 746–756, 2011.
Blecker, S. W., McCulley, R. L., Chadwick, O. A., and Kelly, E. F.: Biologic cycling of silica across a grassland bioclimosequence, Global Biogeochem. Cy., 20, GB3023, https://doi.org/10.1029/2006GB002690, 2006.
Boaretto, E.: Dating materials in good archaeological contexts: the next challenge for radiocarbon analysis, Radiocarbon, 51, 275–281, 2009.
Bremond, L., Alexandre, A., Hely, C., and Guiot, J.: A phytolith index as a proxy of tree cover density in tropical areas: calibration with leaf area index along a forest-savanna transect in Southeastern Cameroon, Global Planet. Change, 45, 277–293, 2005.
Bremond, L., Alexandre, A., Peyron, O., and Guiot, J.: Definition of grassland biomes from phytoliths in West Africa, J. Biogeogr., 35, 2039–2048, 2008a.
Bremond, L., Alexandre, A., Wooller, M. J., Hely, C., Williamson, D., Schafer, P. A., Majule, A., and Guiot, J.: Phytolith indices as proxies of grass subfamilies on East African tropical mountains, Global Planet. Change, 61, 209–224, 2008b.
Carbone, V. A.: Phytoliths as paleoecological indicators, Ann. NY Acad. Sci., 288, 194–205, 1977.
Carter, J. A.: Atmospheric carbon isotope signatures in phytolith-occluded carbon, Quaternary Int., 193, 20–29, 2009.
Chaves, M., Pereira, J., Maroco, J., Rodrigues, M., Ricardo, C., Osorio, M., Carvalho, I., Faria, T., and Pinheiro, C.: How plants cope with water stress in the field: photosynthesis and growth, Ann. Bot.-London, 89, 907–916, 2002.
Cornelis, J.-T., Delvaux, B., Georg, R. B., Lucas, Y., Ranger, J., and Opfergelt, S.: Tracing the origin of dissolved silicon transferred from various soil-plant systems towards rivers: a review, Biogeosciences, 8, 89–112, https://doi.org/10.5194/bg-8-89-2011, 2011.
Crespin, J., Alexandre, A., Sylvestre, F., Sonzogni, C., Pailles, C., and Garreta, V.: IR laser extraction technique applied to oxygen isotope analysis of small biogenic silica samples, Anal. Chem., 80, 2372–2378, 2008.
Currie, H. A. and Perry, C. C.: Silica in plants: biological, biochemical and chemical studies, Ann. Bot.-London, 100, 1383–1389, 2007.
Elbaum, R., Melamed-Bessudo, C., Tuross, N., Levy, A. A., and Weiner, S.: New methods to isolate organic materials from silicified phytoliths reveal fragmented glycoproteins but no DNA, Quaternary Int., 193, 11–19, 2009.
Epstein, E.: Silicon, Annu. Rev. Plant Phys., 50, 641–664, 1999.
Epstein, E.: Silicon: its manifold roles in plants, Ann. Appl. Biol., 155, 155–160, 2009.
Finlay, R., Frostegard, A., and Sonnerfeldt, A.: Utilization of organic and inorganic nitrogen sources by ectomycorrhizal fungi in pure culture and in symbiosis with Pinuscontorta Dougl Ex Loud, New Phytol., 120, 105–115, 1992.
Fontaine, S., Barot, S., Barre, P., Bdioui, N., Mary, B., and Rumpel, C.: Stability of organic carbon in deep soil layers controlled by fresh carbon supply, Nature, 450, 277–280, 2007.
Ford, C. R., Wurzburger, N., Hendrick, R. L., and Teskey, R. O.: Soil DIC uptake and fixation in Pinus taeda seedlings and its C contribution to plant tissues and ectomycorrhizal fungi, Tree Physiol., 27, 375–383, 2007.
Geis, J. W.: Biogenic silica in selected species of deciduous angiosperms, Soil Sci., 116, 113–110, 1973.
Harrison, C.: Evidence for intramolecular macromolecules containing protein from plant silicas, Phytochemistry, 41, 37–42, 1996.
Hatté, C., Hodgins, G., Jull, A., Bishop, B., and Tesson, B.: Marine chronology based on 14C dating on diatoms proteins, Mar. Chem., 109, 143–151, 2008.
Hawkins, H., Johansen, A., and George, E.: Uptake and transport of organic and inorganic nitrogen by arbuscularmycorrhizal fungi, Plant Soil, 226, 275–285, 2000.
Henriet, C., Draye, X., Oppitz, I., Swennen, R., and Delvaux, B.: Effects, distribution and uptake of silicon in banana (Musa spp.) under controlled conditions, Plant Soil, 287, 359–374, 2006.
Henry, H. A. L. and Jefferies, R. L.: Plant amino acid uptake, soluble N turnover and microbial N capture in soils of a grazed Arctic salt marsh, J. Ecol., 91, 627–636, 2003.
Hodson, M. J., White, P. J., Mead, A., and Broadley, M. R.: Phylogenetic variation in the silicon composition of plants, Ann. Bot.-London, 96, 1027–1046, 2005.
Hsueh, D. Y., Krakauer, N. Y., Randerson, J. T., Xu, X. M., Trumbore, S. E., and Southon, J. R.: Regional patterns of radiocarbon and fossil fuel-derived CO2 in surface air across North America, Geophys. Res. Lett., 34, L02816, https://doi.org/10.1029/2006GL027032, 2007.
Inanaga, S. and Okasaka, A.: Calcium and silicon binding-compounds in cell-walls of rice shoots, Soil Sci. Plant Nutr., 41, 103–110, 1995.
Inanaga, S., Okasaka, A., and Tanaka, S.: Does silicon exist in association with organic compounds in rice plants?, Soil Sci. Plant Nutr., 41, 111–117, 1995.
Jansson, C., Wullschleger, S., Kalluri, U., and Tuskan, G.: Phytosequestration: carbon biosequestration by plants and the prospects of genetic engineering, Bioscience, 60, 685–696, 2011.
Kelly, E., Amundson, R., Marino, B., and Deniro, M.: Stable isotope ratio of carbon in phytoliths as a quantitative method of monitoring vegetation and climate change, Quaternary Res., 35, 222–233, 1991.
Ma, J. F. and Yamaji, N.: Silicon uptake and accumulation in higher plants, Trends Plant Sci., 11, 392–397, 2006.
Ma, J. F., Goto, S., Tamai, K., and Ichii, M.: Role of root hairs and lateral roots in silicon uptake by rice, Plant Physiol., 127, 1773–1780, 2001.
Ma, J. F., Mitani, N., Nagao, S., Konishi, S., Tamai, K., Iwashita, T., and Yano, M.: Characterization of Si uptake system and molecular mapping of Si transporter gene in rice, Plant Physiol., 136, 3284–3289, 2004.
Ma, J. F., Tamai, K., Yamaji, N., Mitani, N., Konishi, S., Katsuhara, M., Ishiguro, M., Murata, Y., and Yano, M.: A silicon transporter in rice, Nature, 440, 688–691, 2006.
Ma, J. F., Yamaji, N., Mitani, N., Tamai, K., Konishi, Fujiwara, T., Katsuhara, M., and Yano, M.: An efflux transporter of silicon in rice, Nature, 448, 209–212, 2007a.
Ma, J. F., Yamaji, N., Tamai, K., and Mitani, N.: Genotypic difference in silicon uptake and expression of silicon transporter genes in rice, Plant Physiol., 145, 919–924, 2007b.
Madella, M.:Phytolith analysis from the Indus Valley site of KotDiji, Sind, Pakistan, in: Archaeological Sciences 1995, Oxbow Monograph 64, Oxbow Books, edited by: Sinclair, A., Slater, E., Gowlett, J., Oxford, 294–302, 1997.
Madella, M., Powers-Jones, A. H., and Jones, M. K.: A simple method of extraction of opal phytoliths from sediments using a non-toxic heavy liquid, J. Archaeol. Sci., 25, 801–803, 1998.
Marschner, H.: Mineral Nutrition of higher plants, London: Academic Press, 889 pp., 1995.
McClaran, M. P. and Umlauf, M.: Desert grassland dynamics estimated from carbon isotopes in grass phytoliths and soil organic matter, J. Veg. Sci., 11, 71–76, 2000.
McLauchlan, K. and Hobbie, S.: Comparison of labile soil organic matter fractionation techniques, Soil Sci. Soc. Am. J., 68, 1616–1625, 2004.
McMichael, C. H., Bush, M. B., Piperno, D. R., Silman, M. R., Zimmerman, A. R., and Anderson, C.: Spatial and temporal scales of pre-Columbian disturbance associated with Western Amazonian lakes, Holocene, 22, 131–141, 2012.
Mitani, N., Chiba, Y., Yamaji, N., and Ma, J.: Identification and characterization of maize and barley Lsi-2-like silicon efflux transporters reveals a distinct silicon uptake system from that in rice, Plant Cell, 21, 2133–2142, 2009.
Mulholland, S. C. and Prior, C. A.: AMS Radiocarbon Dating of Phytoliths, in: Current Research in Phytolith Analysis: Applications in Archaeology and Paleoecology, edited by: Pearsall, D. M. and Piperno, D. R., MASCA Research Papers in Science and Archaeology, 10, 21–23, 1993.
Naidoo, P., Mcfarlane, S., Keeping, M., and Caldwell, P.: Deposition of silicon in leaves of sugarcane (Saccharum spp. hybrids) and its effect on the severity of brown rust caused by pucciniamelanocephala, Proceedings of the South African Sugar Technologists Association, 82, 542–546, 2009.
Nasholm, T., Ekblad, A., Nordin, A., Giesler, R., Hogberg, M., and Hogberg, P.: Boreal forest plants take up organic nitrogen, Nature, 392, 914–916, 1998.
Nasholm, T., Kielland, K., and Ganeteg, U.: Uptake of organic nitrogen by plants, New Phytol., 182, 31–48, 2009.
Neumann, K., Fahmy, A., Lespez, L., Ballouche, L., and Huysecom, E.: The early Holocene paleoenvironment of Ounjougou (Mali): phytoliths in a multyproxy context, Palaeogeogr. Palaeocl., 276, 87–106, 2009.
Nordin, A., Hogberg, P., and Nasholm, T.: Soil nitrogen form and plant nitrogen uptake along a boreal forest productivity gradient, Oecologia, 129, 125–132, 2001.
Oleschko, K., Parrot, J. F., Ronquillo, G., Shoba, S., Stoops, G., and Marcelino, V.: Weathering: Toward a fractal quantifying, Math. Geol., 36, 607–628, 2004.
Parr, J. F.: A comparison of heavy liquid floatation and microwave digestion techniques for the extraction of fossil phytoliths from sediments, Rev. Palaeobot. Palyno, 120, 315–336, 2002.
Parr, J. F., Dolic, V., Lancaster, G., and Boyd, W. E.: A microwave digestion method for the extraction of phytoliths from herbarium specimens, Rev. Palaeobot. Palyno, 116, 203–212, 2001.
Paungfoo-Lonhienne, C., Lonhienne, T. G. A., Rentsch, D., Robinson, N., Christie, M., Webb, R. I., Gamage, H. K., Carroll, B. J., Schenk, P. M., and Schmidt, S.: Plants can use protein as a nitrogen source without assistance from other organisms, P. Natl. Acad. Sci. USA, 105, 4524–4529, 2008.
Peleg, Z., Saranga, Y., Fahima, T., Aharoni, A., and Elbaum, R.: Genetic control over silica deposition in wheat awns, Physiol. Plantarum, 140, 10–20, 2010.
Perry, C. and Lu, Y.: Preparation of silicas from silicon complexes: role of cellulose in polymerisation and aggregation control, J. Chem. Soc. Faraday T., 88, 2915–2921, 1992.
Piperno, D. R.: Phytoliths: A Comprehensive Guide for Archaeologists and Paleoecologists, AltaMira Press, New York, 2006.
Piperno, D. R. and Becker, P.: Vegetational history of a site in the Central Amazon Basin derived from phytolith and charcoal records from natural soils, Quaternary Res., 45, 202–209, 1996.
Piperno, D. R. and Stothert, K. E.: Phytolith evidence for early holocene cucurbita domestication in Southwest Ecuador, Science, 299, 1054–1057, 2003.
Prasad, V., Stromberg, C. A., Alimohammadian, H., and Sahni, A.: Dinosaur coprolites and the early evolution of grasses and grazers, Science, 310, 1177–1180, 2005.
Prebble, M., Schallenberg, M., Carter, J., and Shulmeister, J.: An analysis of phytolith assemblages for the quantitative reconstruction of late quaternary environments of the Lower Taieri Plain, Otago, South Island, New Zealand, I. Modern assemblages and transfer functions, J. Paleolimnol., 27, 393–413, 2002.
Prior, C., Carter, J., and Rieser, U.: Are phytolith radiocarbon dates reliable?, Abstract P1592 presented at the 10th International Conference on Accelerator Mass Spectrometry, Berkeley, USA, 5–10 September, 2005.
Prychid, C. J., Rudall, P. J., and Gregory, M.: Systematics and biology of silica bodies in monocotyledons, Bot. Rev., 69, 377–440, 2003.
Ranganathan, S., Suvarchala, V., Rajesh, Y., Srinivasa Prasad, M., Padmakumari, A., and Voleti, S.: Effects of silicon sources on its deposition, chlorophyll content, and disease and pest resistance in rice, Biol. Plantarum, 50, 713–716, 2006.
Rasmussen, J., Sauheitl, L., Eriksen, J., and Kuzyakov, Y.: Plant uptake of dual-labelled organic N biased by inorganic C uptake: results of a triple labeling study, Soil Biol. Biochem., 42, 524–527, 2009.
Raven, P., Evert, R., and Eichhorn, S.: Biology of Plants, W. H. Freeman and Company/Worth Publishers, New York, New York, 944 pp., 1999.
Rieser, U., Carter, J., and Prior, C.: Phytoliths: a chronometer for the late Quaternary, Abstract 1076 presented at the XVII INQUA 2007 Conference, Cairns, Australia, July/August, 2007.
Rossouw, L., Stynder, D. D., and Haarhof, P.: Evidence for opal phytolith preservation in the Langebaanweg "E" Quarry Varswater Formation and its potential for palaeohabitat reconstruction, S. Afr. J. Sci., 105, 223–227, 2009.
Santos, G. M., Southon, J. R., Griffin, S., Beaupre, S., and Druffel, E.: Ultra small-mass AMS 14C sample preparation and analysis at the KCCAMS/UCI Facility, Nucl. Instrum. Meth. B, 259, 293–302, 2007.
Santos, G. M., Alexandre, A., Coe, H. H. G., Reyerson, P. E., Southon, J. R., and De Carvalho, C. N.: The Phytolith 14C puzzle: a tale of background determinations and accuracy tests, Radiocarbon, 52, 113–128, 2010a.
Santos, G. M., Southon, J., Drenzek, N., Ziolkowski, L., Druffel, E., Xu, X., Zhang, D., Trumbore, S., Eglinton, T., and Hughen, K.: Blank assessment for ultra-small samples: chemical extraction and separation vs. AMS, Radiocarbon, 52, 1322–1335, 2010b.
Schimel, J. P., Wetterstedt, J. A. M., Holden, P. A., and Trumbore, S. E.: Drying/rewetting cycles mobilize old C from deep soils from a California annual grassland, Soil Biol. Biochem., 43, 1101–1103, 2011.
Smith, F. A. and Anderson, K. B.: Characterization of organic compounds in phytoliths: improving the resolving power of phytolith δ13C as a tool for paleoecological reconstruction of C3 and C4 grasses, in: Phytoliths: Applications in Earth Sciences and Human History, edited by: Meunier, J. D. and Colin, F., A. A. Balkema Publishers, Rotterdam, Netherlands, 317–327, 2001.
Smith, F. A. and White, J. W. C.: Modern calibration of phytolith carbon isotope signatures for C3/C4 paleograssland reconstruction, Palaeogeogr. Palaeocl., 207, 277–304, 2004.
Smith, S. E. and Read, D. J.: Mycorrhizal Symbiosis, Academic Press, San Diego, 1997.
Street-Perrott, F. A. and Barker, P. A.: Biogenic silica: a neglected component of the coupled global continental biogeochemical cycles of carbon and silicon, Earth Surf. Proc. Land., 33, 1436–1457, 2008.
Stromberg, C. and McInerney, F.: The Neogene transition from C3 to C4 grasslands in North America: assemblage analysis of fossil phytoliths, Paleobiology, 37, 50–71, 2011.
Struyf, E., Smis, A., Van Damme, S., Meire, P., and Conley, D.: The global biogeochemical silicon cycle, Silicon, 1, 207–213, 2009.
Sullivan, L. A. and Parr, J. F.: "Green" geosequestration: secure carbon sequestration via plant silica biomineralisation, Geochim. Cosmochim. Ac., 71, A985–A985, 2007.
Sullivan, L., Parr, J., Smith, A., and Jakobsen, G.: Bomb pulse dating of phytolith-occluded carbon for quantification of carbon sequestration in perennial vegetation, Progress Report no. AINGRA08061, AINSE – Australian Institute of Nuclear Science and Engineering, 2008.
Talbot, J. M. and Treseder, K. K.: Controls over mycorrhizal uptake of organic nitrogen, Pedobiologia, 53, 169–179, 2010.
Talbot, J. M., Allison, S. D., and Treseder, K. K.: Decomposers in disguise: mycorrhizal fungi as regulators of soil C dynamics in ecosystems under global change, Funct. Ecol., 22, 955–963, 2008.
Tamai, K. and Ma, J.: Reexamination of silicon effects on rice growth and production under field conditions using a low silicon mutant, Plant Soil, 307, 21–27, 2008.
Taylor, A. F. S., Gebauer, G., and Read, D. J.: Uptake of nitrogen and carbon from double-labelled (N-15 and C-13) glycine by mycorrhizal pine seedlings, New Phytol., 164, 383–388, 2004.
Trumbore, S.: Age of soil organic matter and soil respiration: radiocarbon constraints on belowground C dynamics, Ecol. Appl., 10, 399–411, 2000.
Trumbore, S.: Radiocarbon and Soil Carbon Dynamics, Annu. Rev. Earth Pl. Sc., 37, 47–66, 2009.
Trumbore, S. E. and Czimczik, C. I.: Geology. An uncertain future for soil carbon, Science, 321, 1455–1456, 2008.
Tubeileh, A., Groleau-Renaud, V., Plantureux, S., and Guckert, A.: Effect of soil compaction on photosynthesis and carbon partitioning within a maize-soil system, Soil Till. Res., 71, 151–161, 2003.
Twiss, P. C., Suess, E., and Smith, R. M.: Morphological classification of grass phytoliths, Soil Sci. Soc. Am. Pro., 33, 109–115, 1969.
Ubierna, N., Kumar, A., Cernusak, L., Pangle, R., Gagl, P., and Marchall, J.: Storage and transpiration have negligible effects on δ13C of stem CO2 efflux in large conifer trees, Tree Physiol., 29, 1563–1574, 2009.
Vuorinen, A. H., Vapaavuori, E. M., Raatikainen, O., and Lapinjoki, S. P.: Metabolism of inorganic carbon taken up by roots in salix plants, J. Exp. Bot., 43, 789–795, 1992.
Webb, E. and Longstaffe, F.: Limitations on the climatic and ecological signals provided by the δ13C values of phytoliths from C4 North American praire grass, Geochim. Cosmochim. Ac., 74, 3041–3050, 2010.
Weigelt, A., King, R., Bol, R., and Bardgett, R. D.: Inter-specific variability in organic nitrogen uptake of three temperate grassland species, J. Plant Nutr. Soil Sc., 166, 606–611, 2003.
Whiteside, M. D., Treseder, K. K., and Atsatt, P. R.: The brighter side of soils: quantum dots track organic nitrogen through fungi and plants, Ecology, 90, 100–108, 2009.
Wilding, L. P.: Radiocarbon dating of biogenetic opal, Science, 156, 66–67, 1967.
Xiang, S.-R., Doyle, A., Holden, P., and Schimel, J.: Drying and rewetting effects on C and N mineralization and microbial activity in surface and subsurface California grassland soils, Soil Biol. Biochem., 40, 2281–2289, 2008.
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