Articles | Volume 10, issue 1
https://doi.org/10.5194/bg-10-567-2013
© Author(s) 2013. 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-10-567-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
29 Jan 2013
Research article |
| 29 Jan 2013
Response of Nodularia spumigena to pCO2 – Part 2: Exudation and extracellular enzyme activities
S. Endres
GEOMAR Helmholtz Centre for Ocean Research, Düsternbrooker Weg 20, 24105 Kiel, Germany
Alfred Wegener Institute for Polar and Marine Research (AWI), Am Handelshafen 12, 27570 Bremerhaven, Germany
J. Unger
Leibniz Institute for Baltic Sea Research (IOW), Seestrasse 15, 18119 Rostock, Germany
N. Wannicke
Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Alte Fischerhütte 2, OT Neuglobsow, 16775 Stechlin, Germany
Leibniz Institute for Baltic Sea Research (IOW), Seestrasse 15, 18119 Rostock, Germany
M. Nausch
Leibniz Institute for Baltic Sea Research (IOW), Seestrasse 15, 18119 Rostock, Germany
M. Voss
Leibniz Institute for Baltic Sea Research (IOW), Seestrasse 15, 18119 Rostock, Germany
A. Engel
GEOMAR Helmholtz Centre for Ocean Research, Düsternbrooker Weg 20, 24105 Kiel, Germany
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Biogeosciences, 19, 5729–5749, https://doi.org/10.5194/bg-19-5729-2022, https://doi.org/10.5194/bg-19-5729-2022, 2022
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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
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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
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Sania Arif, Heiko Nacke, Elias Schliekmann, Andreas Reimer, Gernot Arp, and Michael Hoppert
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Karen M. Brandenburg, Björn Rost, Dedmer B. Van de Waal, Mirja Hoins, and Appy Sluijs
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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
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Julie Dinasquet, Estelle Bigeard, Frédéric Gazeau, Farooq Azam, Cécile Guieu, Emilio Marañón, Céline Ridame, France Van Wambeke, Ingrid Obernosterer, and Anne-Claire Baudoux
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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
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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
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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
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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 Wells, 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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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.
Nimrod Wieler, Hanan Ginat, Osnat Gillor, and Roey Angel
Biogeosciences, 16, 1133–1145, https://doi.org/10.5194/bg-16-1133-2019, https://doi.org/10.5194/bg-16-1133-2019, 2019
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In stony deserts, when rocks are exposed to atmospheric conditions, they undergo weathering. The cavernous (honeycomb) weathering pattern is one of the most common, but it is still unclear exactly how it is formed. We show that microorganisms, which differ from the surrounding soil and dust, form biological crusts on exposed rock surfaces. These microbes secrete polymeric substances that mitigate weathering by reducing evaporation rates and, consequently, salt transport rates through the rock.
Yang Li, Zhaojun Wu, Xingchen Dong, Zifu Xu, Qixin Zhang, Haiyan Su, Zhongjun Jia, and Qingye Sun
Biogeosciences, 16, 573–583, https://doi.org/10.5194/bg-16-573-2019, https://doi.org/10.5194/bg-16-573-2019, 2019
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This paper contributes to the study of bacterial carbon sequestration in mine tailings. Previous studies focused on carbonate mineral precipitation, while the role of autotrophs in carbon sequestration has been neglected. Carbon sequestration in two mine tailings treated with FeS2 was analyzed using 13C isotope labeling, pyrosequencing, and DNA SIP to identify carbon fixers. This paper is the first to investigate carbon sequestration by autotrophic groups in mine tailings.
Dong-Hun Lee, Jung-Hyun Kim, Yung Mi Lee, Alina Stadnitskaia, Young Keun Jin, Helge Niemann, Young-Gyun Kim, and Kyung-Hoon Shin
Biogeosciences, 15, 7419–7433, https://doi.org/10.5194/bg-15-7419-2018, https://doi.org/10.5194/bg-15-7419-2018, 2018
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In this study, we provide first evidence of lipid biomarker patterns and phylogenetic identities of key microbes mediating anaerobic oxidation of methane (AOM) communities in active mud volcanoes (MVs) on the continental slope of the Canadian Beaufort Sea. Our lipid and 16S rRNA results indicate that archaea of the ANME-2c and ANME-3 clades are involved in AOM in the MVs investigated.
Joshua F. Dean, Jurgen R. van Hal, A. Johannes Dolman, Rien Aerts, and James T. Weedon
Biogeosciences, 15, 7141–7154, https://doi.org/10.5194/bg-15-7141-2018, https://doi.org/10.5194/bg-15-7141-2018, 2018
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Lakes, rivers, ponds and streams are significant contributors of the greenhouse gas carbon dioxide to the atmosphere. This is partly due to the decomposition of plant and soil organic matter transported through these aquatic systems by microbial communities. In determining how vulnerable this organic material is to decomposition during aquatic transport, we show that standardized treatments in experiments can affect the way microbial communities behave and potentially the experimental outcome.
Xi Wen, Viktoria Unger, Gerald Jurasinski, Franziska Koebsch, Fabian Horn, Gregor Rehder, Torsten Sachs, Dominik Zak, Gunnar Lischeid, Klaus-Holger Knorr, Michael E. Böttcher, Matthias Winkel, Paul L. E. Bodelier, and Susanne Liebner
Biogeosciences, 15, 6519–6536, https://doi.org/10.5194/bg-15-6519-2018, https://doi.org/10.5194/bg-15-6519-2018, 2018
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Rewetting drained peatlands may lead to prolonged emission of the greenhouse gas methane, but the underlying factors are not well described. In this study, we found two rewetted fens with known high methane fluxes had a high ratio of microbial methane producers to methane consumers and a low abundance of methane consumers compared to pristine wetlands. We therefore suggest abundances of methane-cycling microbes as potential indicators for prolonged high methane emissions in rewetted peatlands.
Kyle R. Frischkorn, Andreas Krupke, Cécile Guieu, Justine Louis, Mónica Rouco, Andrés E. Salazar Estrada, Benjamin A. S. Van Mooy, and Sonya T. Dyhrman
Biogeosciences, 15, 5761–5778, https://doi.org/10.5194/bg-15-5761-2018, https://doi.org/10.5194/bg-15-5761-2018, 2018
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Trichodesmium is a keystone genus of marine cyanobacteria that is estimated to supply nearly half of the ocean’s fixed nitrogen, fuelling primary productivity and the cycling of carbon and nitrogen in the ocean. In our study we characterize Trichodesmium ecology across the western tropical South Pacific using gene and genome sequencing and geochemistry. We detected genes for phosphorus reduction, providing a mechanism for the noted importance of this organism in the ocean's phosphorus cycle.
Audrey Lallement, Ludovic Besaury, Elise Tixier, Martine Sancelme, Pierre Amato, Virginie Vinatier, Isabelle Canet, Olga V. Polyakova, Viatcheslay B. Artaev, Albert T. Lebedev, Laurent Deguillaume, Gilles Mailhot, and Anne-Marie Delort
Biogeosciences, 15, 5733–5744, https://doi.org/10.5194/bg-15-5733-2018, https://doi.org/10.5194/bg-15-5733-2018, 2018
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The main objective of this work was to evaluate the potential degradation of phenol, a highly toxic pollutant, by cloud microorganisms. Phenol concentrations measured on five cloud samples collected at the PUY station in France were from 0.15 to 0.74 µg L−1. Metatranscriptomic analysis suggested that phenol could be biodegraded directly in clouds, likely by Gammaproteobacteria. A large screening showed that 93 % of 145 bacterial strains isolated from clouds were able to degrade phenol.
Sara J. Bender, Dawn M. Moran, Matthew R. McIlvin, Hong Zheng, John P. McCrow, Jonathan Badger, Giacomo R. DiTullio, Andrew E. Allen, and Mak A. Saito
Biogeosciences, 15, 4923–4942, https://doi.org/10.5194/bg-15-4923-2018, https://doi.org/10.5194/bg-15-4923-2018, 2018
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Phaeocystis antarctica is an important phytoplankter of the Antarctic coastal environment where it dominates the early season bloom after sea ice retreat. Iron nutrition was found to be an important factor that results in Phaeocystis colony formation and a large restructuring of the proteome, including changes associated with the flagellate to colonial transition and adaptive responses to iron scarcity. Analysis of Phaeocystis proteins from the Ross Sea revealed the presence of both cell types.
Sophie Bonnet, Mathieu Caffin, Hugo Berthelot, Olivier Grosso, Mar Benavides, Sandra Helias-Nunige, Cécile Guieu, Marcus Stenegren, and Rachel Ann Foster
Biogeosciences, 15, 4215–4232, https://doi.org/10.5194/bg-15-4215-2018, https://doi.org/10.5194/bg-15-4215-2018, 2018
Dina Spungin, Natalia Belkin, Rachel A. Foster, Marcus Stenegren, Andrea Caputo, Mireille Pujo-Pay, Nathalie Leblond, Cécile Dupouy, Sophie Bonnet, and Ilana Berman-Frank
Biogeosciences, 15, 3893–3908, https://doi.org/10.5194/bg-15-3893-2018, https://doi.org/10.5194/bg-15-3893-2018, 2018
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The way marine organisms die can determine the fate of organic matter (OM) in the ocean. We investigated whether a form of auto-induced programmed cell death (PCD) influenced phytoplankton mortality and fate of OM. Our results from high biomass blooms of the cyanobacterium Trichodesmium show evidence for PCD and high production of sticky carbon material termed transparent exopolymeric particles (TEP) that facilitates cellular aggregation and enhances the vertical flux of OM to depth.
Christian Nyrop Albers, Magnus Kramshøj, and Riikka Rinnan
Biogeosciences, 15, 3591–3601, https://doi.org/10.5194/bg-15-3591-2018, https://doi.org/10.5194/bg-15-3591-2018, 2018
Cited articles
Alldredge, A. L., Passow, U., and Logan, B. E.: The abundance and significance of a class of large transparent organic particles in the ocean, Deep-Sea Res. I, 40, 1131–1140, 1993.
Azam, F., Fenchel, T., Field, J. G., Gray, J. S., Meyer-Reil, L. A., and Thingstad, F.: The Ecological Role of Water-Column Microbes in the Sea, Mar. Ecol.-Prog. Ser., 257–263, 1983.
Barcelos e Ramos, J., Biswas, H., Schulz, K. G., LaRoche, J., and Riebesell, U.: Effect of rising atmospheric carbon dioxide on the marine nitrogen fixer Trichodesmium, Global Biogeochem. Cy., 21, 1–6, https://doi.org/10.1029/2006GB002898, 2007.
Bar-Yosef, Y., Sukenik, A., Hadas, O., Viner-Mozzini, Y., and Kaplan, A.: Enslavement in the Water Body by Toxic Aphanizomenon ovalisporum, Inducing Alkaline Phosphatase in Phytoplanktons, Curr. Biol., 20, 1557–1561, https://doi.org/10.1016/j.cub.2010.07.032, 2010.
Beardall, J., Young, E., and Roberts, S.: Approaches for determining phytoplankton nutrient limitation, Aquat. Sci., 63, 44–69, 2001.
Björkman, K. and Karl, D. M.: Bioavailability of inorganic and organic phosphorus compounds to natural assemblages of microorganisms in Hawaiian coastal waters, Mar. Ecol.-Prog. Ser., 111, 265–273, 1994.
Borchard, C. and Engel, A.: Organic matter exudation by Emiliania huxleyi under simulated future ocean conditions, Biogeosciences, 9, 3405–3423, https://doi.org/10.5194/bg-9-3405-2012, 2012.
Chrost, R. J. and Overbeck, J.: Kinetics of Alkaline Phosphatase activity and Phosphorus Availability for Phytoplankton and Bacterioplankton in Lake Plu{ß}see (North German Eutrophic Lake), Microb. Ecol., 13, 229–248, 1987.
Chrost, R. J., Münster, U., Rai, H., Albrecht, D., Witzel, P. K., and Overbeck, J.: Photosynthetic production and exoenzymatic degradation of organic matter in the euphotic zone of a eutrophic lake, J. Plankton Res., 11, 223–242, 1989.
Czerny, J., Barcelos e Ramos, J., and Riebesell, U.: Influence of elevated CO2 concentrations on cell division and nitrogen fixation rates in the bloom-forming cyanobacterium Nodularia spumigena, Biogeosciences, 6, 1865–1875, https://doi.org/10.5194/bg-6-1865-2009, 2009.
Degerholm, J., Gundersen, K., Bergman, B., and Söderbäck, E.: Phosphorus-limited growth dynamics in two Baltic Sea cyanobacteria, Nodularia sp. and Aphanizomenon sp, FEMS Microbiol. Ecol., 58, 323–332, https://doi.org/10.1111/j.1574-6941.2006.00180.x, 2006.
Doney, S.: Plankton in a warmer world, Nature, 444, 695–696, 2006.
Dyhrman, S. T., Ammerman, J. W., and van Moody, B. A. S.: Microbes and the Marine Phosphorus Cycle, Oceanography, 20, 110–116, 2007.
Engel, A.: Direct relationship between CO2 uptake and transparent exopolymer particles production in natural phytoplankton, J. Plankton Res., 24, 49–53, 2002.
Engel, A.: Determination of Marine Gel Particles, in: Practical Guidelines for the Analysis of Seawater, 1st Edn., edited by: Wurl, O., CRC Press, Boca Raton, FL, 125–141, 2009.
Engel, A., Goldthwait, S., Passow, U., and Alldredge, A. L.: Temporal decoupling of carbon and nitrogen dynamics in a mesocosm diatom bloom, Limnol. Oceangr., 47, 753–761, 2002a.
Engel, A., Meyerhöfer, M., and Bröckel, K. von: Chemical and Biological Composition of Suspended Particles and Aggregates in the Baltic Sea in Summer (1999), Estuar. Coast. Shelf S., 55, 729–741, https://doi.org/10.1006/ecss.2001.0927, 2002b.
Engel, A., Delille, B., Jacquet, S., Riebesell, U., Rochelle-Newall, E., Terbrüggen, A., and Zondervan, I.: Transparent exopolymer particles and dissolved organic carbon production by Emiliania huxleyi exposed to different CO2 concentrations: a mesocosm experiment, Aquat. Microb. Ecol., 34, 93–104, 2004a.
Engel, A., Thoms, S., Riebesell, U., Rochelle-Newall, E., and Zondervan, I.: Polysaccharide aggregation as a potential sink of marine dissolved organic carbon, Nature, 428, 929–932, 2004b.
Feely, R. A., Doney, S. C., and Cooley, S. R.: Ocean Acidification – Present Conditions and Future Changes in a High-CO2 World, Oceanography, 22, 36–47, 2010.
Finni, T., Kononen, K., Olsonen, R., and Wallström, K.: The History of Cyanobacterial Blooms in the Baltic Sea, AMBIO, 30, 172–178, https://doi.org/10.1579/0044-7447-30.4.172, 2001.
Gasol, J. M. and del Giorgio, P. A.: Using flow cytometry for counting natural planktonic bacteria and understanding the structure of planktonic bacterial communities, Sci. Mar., 64, 197–224, 2000.
Grasshoff, K., Ehrhardt, M., and Kremling, K.: Determination of nutrients, 2nd Edn., Verlag Chemie, Weinheim, 1983.
Grönlund, L., Kononen, K., Lahdes, E., and Mäkela, K.: Community development and modes of phosphorus utilization in a late summer ecosystem in the central Gulf of Finland, the Baltic Sea, Hydrobiologia, 331, 97–108, 1996.
Grossart, H.-P., Allgaier, M., Passow, U., and Riebesell, U.: Testing the effect of CO2 concentration on the dynamics of marine heterotrophic bacterioplankton, Limnol. Oceangr., 51, 1–11, 2006.
Healey, F. P. and Hendzel, L. L.: Fluorometric measurement of alkaline phosphatase activity in algae, Freshwater Biol., 9, 429–439, 1979.
HELCOM: Atmospheric supply of nitrogen, lead, cadmium, mercury and lindane to the Baltic Sea over the period 1996–2000, Balt. Sea Environ. Proc., 101B, 1–75, 2005.
Hernandez, I., Niell, F. X., and Whitton, B. A.: Phosphatase activity of benthic marine algae. An overview, J. Appl. Phycol., 14, 475–487, 2002.
Hoppe, H.-G.: Significance of exoenzymatic activities in the ecology of brackish water: measurements by means of methylumbelliferyl-substrates, Mar. Ecol.-Prog. Ser., 11, 299–308, 1983.
Hoppe, H.-G.: Phosphatase activity in the sea, Hydrobiologia, 493, 187–200, 2003.
Hoppe, H.-G., Arnosti, C., and Herndl, G. J.: Ecological Significance of Bacterial Enzymes on the Marine Environment, in: Enzymes in the environment: Activity, ecology, and applications, edited by: Burns, R. G. and Dick, R. P., Marcel Dekker, New York, 2002.
Huber, A. L. and Hamel, K. S.: Phosphatase activities in relation to phosphorus nutrition in Nodularia spumigena (Cyanobacteriaceae). I. Field studies, Hydrobiologia, 123, 145–152, 1985a.
Huber, A. L. and Hamel, K. S.: Phosphatase activities in relation to phosphorus nutrition in Nodularia spumigena (Cyanobacteriaceae). 2. Laboratory studies, Hydrobiologia, 123, 81–88, 1985b.
Hutchins, D. A., Fu, F.-X., Zhang, Y., Warner, M. E., Feng, Y., Portune, K., Bernhardt, P. W., and Mulholland, M.: CO2 control of Trichodesmium N2 fixation, photosynthesis, growth rates and elemental ratios: Implications for past, present and future biogeochemistry, Limnol. Oceangr., 52, 1293–1304, 2007.
Jacquet, S., Havskum, H., Thingstad, T. F., and Vaulot, D.: Effects of inorganic and organic nutrient addition on coastal microbial community (Isefjord, Denmark), Mar. Ecol.-Prog. Ser., 228, 3–14, 2002.
Jeffrey, S. and Welschmeyer, N.: Spectrophotometric and fluorometric equations in common use in oceanography, in: Phytoplankton pigments in oceanography: Guidelines to modern methods, edited by: Jeffrey, S. W., Mantoura S. W., and Wright R. F. C., United Nations Educational Scientific and Cultural Organization (UNESCO), Paris, 597–615, 1997.
Johnson, K. M., Wills, K. D., Butler, D. B., Johnson, W. K., and Wong, C. S.: Coulometric total carbon dioxide analysis for marine studies: Maximizing the performance of an automated gas extraction system and coulometric detector, Mar. Chem., 44, 167–187, 1993.
Joint, I., Doney, S. C., and Karl, D. M.: Will ocean acidification affect marine microbes?, ISME J., 5, 1–7, https://doi.org/10.1038/ismej.2010.79, 2010.
Kahru, M., Horstmann, U., and Rud, O.: Satellite Detection of Increased Cyanobacteria Blooms in the Baltic Sea: Natural Fluctuation or Ecosystem Change?, AMBIO, 23, 496-472, 1994.
Kankaanpää H., Turunen, A. K., Karlsson, K., Bylund, G., Meriluoto, J., and Sipiä, V.: Heterogeneity of nodularin bioaccumulation in northern Baltic Sea flounders in 2002, Chemosphere, 59, 1091–1097, https://doi.org/10.1016/j.chemosphere.2004.12.010, 2005.
Kankaanpää, H., Leiniö, S., Olin, M., Sjövall, O., Meriluoto, J., and Lehtonen, K. K.: Accumulation and depuration of cyanobacterial toxin nodularin and biomarker responses in the mussel Mytilus edulis, Chemosphere, 68, 1210–1217, https://doi.org/10.1016/j.chemosphere.2007.01.076, 2007.
Kononen, K., Nommann, S., Hansen, G., Hansen, R., Breuel, G., and Gupalo, E.: Spatial heterogeneity and dynamics of vernal phytoplankton species in the Baltic Sea in April–May 1986, J. Plankton Res., 14, 107–125, 1992.
Kranz, S. A., Levitan, O., Richter, K.-U., Prasil, O., Berman-Frank, I., and Rost, B.: Combined Effects of CO2 and Light on the N2-Fixing Cyanobacterium Trichodesmium IMS101: Physiological Responses, Plant Physiol., 154, 334–345, https://doi.org/10.1104/pp.110.159145, 2010.
Labry, C., Delmas, D., and Herbland, A.: Phytoplankton and bacterial alkaline phosphatase activities in relation to phosphate and DOP availability within the Gironde plume waters (Bay of Biscay), J. Exp. Mar. Biol. Ecol., 318, 213–225, https://doi.org/10.1016/j.jembe.2004.12.017, 2005.
Larsson, U., Hajdu, S., Walve, J., and Elmgren, R.: Baltic Sea nitrogen fixation estimated from the summer increase in upper mixed layer total nitrogen, Limnol. Oceangr., 46, 811–820, 2001.
Leppard, G. G.: The characterization of algal and microbial mucilages and their aggregates in aquatic ecosystems, Sci. Total Environ., 165, 103–131, 1995.
Lewis, E., Wallace, D., and Allison, L. J.: Program developed for CO2 system calculations ORNL/CDIAC-105, Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, US Department of Energy, 1998.
Logan, B. E., Passow, U., Alldredge, A. L., Grossart, H. P., and Simon, M.: Rapid formation and sedimentation of large aggregates is predictable from coagulation rates (half-lives) of transparent exopolymer particles (TEP), Deep-Sea Res. Pt. II, 42, 203–214, https://doi.org/10.1016/0967-0645(95)00012-F, 1995.
Lomas, M. W., Rumbley, C. J., and Gilbert, P. M.: Ammonium release by nitrogen sufficient diatoms in response to rapid increases in irradiance, J. Plankton Res., 22, 2351–2366, 2000.
Mather, R. L., Reynolds, S. E., Wolff, G. A., Williams, R. G., Torres-Valdes, S., Woodward, E. M. S., Landolfi, A., Pan, X., Sanders, R., and Achterberg, E. P.: Phosphorus cycling in the North and South Atlantic Ocean subtropical gyres, Nat. Geosci., 1, 439–443, https://doi.org/10.1038/ngeo232, 2008.
Meehl, G. A., Covey, C., Delworth, T., Latif, M., McAvaney, B., Mitchell, J. F. B., Stouffer, R. J., and Taylor, K. E.: THE WCRP CMIP3 Multimodel Dataset: A New Era in Climate Change Research, B. Am. Meteor. Soc, 88, 1383–1394, https://doi.org/10.1175/BAMS-88-9-1383, 2007.
Michelou, V. K., Lomas, M. W., and Kirchman, D. L.: Phosphate and adenosine-5'-triphosphate uptake by cyanobacteria and heterotrophic bacteria in the Sargasso Sea, Limnol. Oceangr., 56, 323–332, https://doi.org/10.4319/lo.2011.56.1.0323, 2011.
Mulholland, M., Floge, S., Carpenter, E., and Capone, D.: Phosphorus dynamics in cultures and natural populations of Trichodesmium spp., Mar. Ecol.-Prog. Ser., 239, 45–55, 2002.
Münster, U., Einiö, P., Nurminen, J., and Overbeck, J.: Extracellular enzymes in a polyhumic lake: important regulators in detritus processing, Hydrobiologia, 229, 225–238, 1992.
Nausch, M.: Microbial activities on Trichodesmium colonies, Mar. Ecol.-Prog. Ser., 141, 173–181, 1996.
Nausch, M.: Alkaline phosphatase activities and the relationship to inorganic phosphate in the Pomeranian Bight (southern Baltic Sea), Aquat. Microb. Ecol, 87–94, 1998a.
Nausch, M., Pollehne, F., and Kerstan, E.: Extracellular Enzyme Activities in Relation to Hydrodynamics in the Pomeranian Bight (Southern Baltic Sea), Microb. Ecol., 36, 251–258, 1998b.
Nausch, M. and Nausch, G.: Bioavailability of dissolved organic phosphorus in the Baltic Sea, Mar. Ecol.-Prog. Ser., 321, 9–17, 2006.
Nausch, M., Nausch, G., and Wasmund, N.: Phosphorus dynamics during the transition from nitrogen to phosphate limitation in the central Baltic Sea, Mar. Ecol.-Prog. Ser., 266, 15–25, 2004.
Niemi, Å.: Blue-green algal blooms and N:P ratio in the Baltic Sea, Acta Bot. Fenn., 110, 57–61, 1979.
O'Neil, J. and Roman, M. R.: Grazers and associated organisms of Trichodesmium, in: Marine pelagic cyanobacteria: Trichodesmium and other diazotrophs, edited by: Carpenter, E. J., Capone, D. G., and Rueter J., Kluwer Academic Publishers, Dordrecht, 61–74, 1992.
O'Neil, J. M., Davis, T. W., Burford, M. A., and Gobler, C. J.: The Rise of Harmful Cyanobacteria Blooms: The Potential Roles of Eutrophication and Climate Change, Harmful Algae, 14, 313–334, https://doi.org/10.1016/j.hal.2011.10.027, 2012.
Otero, A. and Vincenzini, M.: Nostoc (Cyanophyceae) goes nude: extracellular polysaccharides serve as a sink for reducing power under unbalanced C/N metabolism, J. Phycol., 40, 74–81, 2004.
Parry, M. L., Canziani, O. F., Palutikof, J. P., van der Linden, P. J., and Hanson, C. (Eds.): IPCC: Climate change 2007: Contribution of Working Group II to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, Cambridge University Press, Cambridge, UK, 2007.
Passow, U.: Transparent exopolymer particles (TEP) in aquatic environments, Progr. Oceanogr., 55, 287–333, https://doi.org/10.1016/S0079-6611(02)00138-6, 2002.
Passow, U. and Alldredge, A. L.: A dye-binding assay for the spectrophotometric measurement of transparent exopolymer particles (TEP), Limnol. Oceangr., 40, 1326–1335, 1995.
Passow, U., Shipe, R., Murray, A., Pak, D., Brzezinski, M., and Alldredge, A.: The origin of transparent exopolymer particles (TEP) and their role in the sedimentation of particulate matter, Cont. Shelf Res., 21, 327–346, https://doi.org/10.1016/S0278-4343(00)00101-1, 2001.
Paytan, A. and McLaughlin, K.: The Oceanic Phosphorus Cycle, Chem. Rev., 107, 563–576, https://doi.org/10.1021/cr0503613, 2007.
Perry, M. and Eppley, R.: Phosphate uptake by phytoplankton in the central North Pacific Ocean, Deep-Sea Res., 28, 39–49, https://doi.org/10.1016/0198-0149(81)90109-6, 1981.
Piontek, J., Lunau, M., Händel, N., Borchard, C., Wurst, M., and Engel, A.: Acidification increases microbial polysaccharide degradation in the ocean, Biogeosciences, 7, 1615–1624, https://doi.org/10.5194/bg-7-1615-2010, 2010.
Põder, T., Maestrini, S. Y., Balode, M., Lips, U., Béchemin, C., Andrushaitis, A., and Purina, I.: The role of inorganic and organic nutrients on the development of phytoplankton along a transect from the Daugava River mouth to the Open Baltic, in spring and summer 1999, ICES J. Mar. Sci., 60, 827–835, https://doi.org/10.1016/S1054-3139(03)00069-9, 2003.
Rasband, W. S.: ImageJ, US National Institutes of Health, Bethesda, Maryland, USA, 1997–2011.
Raupach, M. R., Marland, G., Ciais, P., Le Quéré, C., Canadell, J. G., Klepper, G., and Field, C. G.: Global and regional drivers of accelerating CO2 emissions, P. Natl. Acad. Sci., 104, 10288–10293, 2007.
Raven, J. A.: Cyanotoxins: A Poison that Frees Phosphate, Curr. Biol., 20, R850–R852, https://doi.org/10.1016/j.cub.2010.08.012, 2010.
Rost, B., Zondervan, I., and Wolf-Gladrow, D.: Sensitivity of phytoplankton to future changes in ocean carbonate chemistry: current knowledge, contradictions and research directions, Mar. Ecol.-Prog. Ser., 373, 227–237, https://doi.org/10.3354/meps07776, 2008.
Schneider, B., Nausch, G., Nagel, K., and Wasmund, N.: The surface water CO2 budget for the Baltic Proper: a new way to determine nitrogen fixation, J. Mar. Syst., 42, 53–64, https://doi.org/10.1016/S0924-7963(03)00064-2, 2003.
Sellner, K. G.: Physiology, ecology, and toxic properties of marine cyanobacteria blooms, Part 2: The ecology and oceanography of harmful algal blooms, Limnol. Oceangr., 42, 1089–1104, 1997.
Sellner, K. G., Doucette, G. J., and Kirkpatrick, G. J.: Harmful algal blooms: causes, impacts and detection, J. Ind. Microbiol. Biot., 30, 383–406, https://doi.org/10.1007/s10295-003-0074-9, 2003.
Shipe, R. F., Passow, U., Brzezinski, M. A., Graham, W. M., Pak, D. K., Siegel, D. A., and Alldredge, A. L.: Effects of the 1997–98 El Niño on seasonal variations in suspended and sinking particles in the Santa Barbara basin, Progr. Oceanogr., 54, 105–127, 2002.
Sipiä, V., Karlsson, K., Meriluoto, J., and Kankaanpää, H.: Eiders (Somateria mollissima) obtain nodularin, a cyanobacterial hepatotoxin, in baltic sea food web, Environ. Toxicol. Chem., 23, 1256–1260, 2004.
Sivonen, K., Kononen, K., Esala, A.-L., and Niemelä, S. I.: Toxicity and isolation of the cyanobacterium Nodularia spumigena from the southern Baltic Sea in 1986, Hydrobiologia, 185, 3–8, 1989.
Stoecker, D., Autio, R., Rintala, J.-M., and Kuosa, H.: Ecto-cellular enzyme activity associated with filamentous cyanobacteria, Aquat. Microb. Ecol., 40, 151–161, 2005.
Sutherland, I. W.: Enzymes in the assay of microbial polysaccharides, Process Biochem., 19, 19–24, 1985.
Tanaka, T., Thingstad, T. F., Løvdal, T., Grossart, H.-P., Larsen, A., Allgaier, M., Meyerhöfer, M., Schulz, K. G., Wohlers, J., Zöllner, E., and Riebesell, U.: Availability of phosphate for phytoplankton and bacteria and of glucose for bacteria at different pCO2 levels in a mesocosm study, Biogeosciences, 5, 669–678, https://doi.org/10.5194/bg-5-669-2008, 2008.
Tyrell, T.: The relative influences of nitrogen and phosphorus on oceanic primary production, Nature, 400, 525–531, 1999.
Unger, J., Endres, S., Wannicke, N., Engel, A., Voss, M., Nausch, G., and Nausch, M.: Response of Nodularia spumigena to pCO2 – Part 3: Turnover of phosphorus compounds, Biogeosciences Discuss., 9, 14709–14750, https://doi.org/10.5194/bgd-9-14709-2012, 2012.
Utermöhl, H.: Zur Vervollkommnung der quantiativen Phytoplankton-Methodik, Mitt. int. Ver. theor. angew. Limnol., 9, 1–38, 1958.
Vahtera, E., Laamanen, M., and Rintala, J.-M.: Use of different phosphorus sources by the bloom-forming cyanobacteria Aphanizomenon flos-aquae and Nodularia spumigena, Aquat. Microb. Ecol, 46, 225–237, 2007.
Vahtera, E., Autio, R., Kaartokallio, H., and Laamanen, M.: Phosphate addition to phosphorus-deficient Baltic Sea plankton communities benefits nitrogen-fixing Cyanobacteria, Aquat. Microb. Ecol, 60, 43–57, https://doi.org/10.3354/ame01408, 2010.
Wannicke, N., Koch, B. P., and Voss, M.: Release of fixed N2 and C as dissolved compounds by Trichodesmium erythreum and Nodularia spumigena under the influence of high light and high nutrient (P), Aquat. Microb. Ecol, 57, 175–189, https://doi.org/10.3354/ame01343, 2009.
Wannicke, N., Endres, S., Engel, A., Grossart, H.-P., Nausch, M., Unger, J., and Voss, M.: Response of Nodularia spumigena to pCO2 – Part 1: Growth, production and nitrogen cycling, Biogeosciences, 9, 2973–2988, https://doi.org/10.5194/bg-9-2973-2012, 2012.
Wolf-Gladrow, D. A., Riebesell, U., Burkhardt, S., and Bijma, J.: Direct effects of CO2 concentration on growth and isotopic composition of marine plankton, Tellus B, 51, 461–476, 1999.
Wu, Z., Zeng, B., Li, R., and Song, L.: Physiological regulation of Cylindrospermopsis raciborskii (Nostocales, Cyanobacteria) in response to inorganic phosphorus limitation, Harmful Algae, 15, 53–58, https://doi.org/10.1016/j.hal.2011.11.005, 2012.
Zalasiewicz, J., Williams, M., Smith, A., Barry, T. L., Coe, A. L., Bown, P. R., Brenchley, P., Cantrill, D., Gale, A., Gibbard, P., Gregory, F. J., Hounslow, M. W., Kerr, A. C., Pearson, P., Knox, R., Powell, J., Waters, C., Marshall, J., Oates, M., Rawson, P., and Stone, P.: Are we now living in the Anthropocene?, Gsa Today, 18, 4, https://doi.org/10.1130/GSAT01802A.1, 2008.
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