Articles | Volume 21, issue 22
https://doi.org/10.5194/bg-21-5233-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-21-5233-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
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25 Nov 2024
Research article | Highlight paper |
| 25 Nov 2024
| 25 Nov 2024
Microbial strong organic-ligand production is tightly coupled to iron in hydrothermal plumes
Joint Institute for the Study of Atmosphere and Ocean, University of Washington, 3737 Brooklyn Avenue NE, Seattle, WA 98195, USA
Cooperative Institute for Climate, Ocean, and Ecosystem Studies, University of Washington, 3737 Brooklyn Avenue NE, Seattle, WA 98195, USA
School of Oceanography, University of Washington, 1501 NE Boat Street, Seattle, WA 98195, USA
Patrick J. Monreal
CORRESPONDING AUTHOR
School of Oceanography, University of Washington, 1501 NE Boat Street, Seattle, WA 98195, USA
Earth Systems Program, Stanford University, 473 Via Ortega, Stanford, CA 94305, USA
Justine B. Albers
Department of Ecology, Evolution, and Marine Biology, University of California, Santa Barbara, CA 93106, USA
Alastair J. M. Lough
Department of Ocean and Earth Sciences, National Oceanography Centre, University of Southampton, European Way, Southampton SO14 3ZH, UK
Alyson E. Santoro
Department of Ecology, Evolution, and Marine Biology, University of California, Santa Barbara, CA 93106, USA
Travis Mellett
School of Oceanography, University of Washington, 1501 NE Boat Street, Seattle, WA 98195, USA
College of Marine Science, University of South Florida, 140 7th Avenue South, St. Petersburg, FL 33701, USA
Kristen N. Buck
College of Marine Science, University of South Florida, 140 7th Avenue South, St. Petersburg, FL 33701, USA
College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, 2651 SW Orchard Ave., Corvallis, OR 97331, USA
Alessandro Tagliabue
Department of Earth, Ocean, and Ecological Sciences, University of Liverpool, 4 Brownlow Street, Liverpool l69 3GP, UK
Maeve C. Lohan
Department of Ocean and Earth Sciences, National Oceanography Centre, University of Southampton, European Way, Southampton SO14 3ZH, UK
Joseph A. Resing
Joint Institute for the Study of Atmosphere and Ocean, University of Washington, 3737 Brooklyn Avenue NE, Seattle, WA 98195, USA
Cooperative Institute for Climate, Ocean, and Ecosystem Studies, University of Washington, 3737 Brooklyn Avenue NE, Seattle, WA 98195, USA
School of Oceanography, University of Washington, 1501 NE Boat Street, Seattle, WA 98195, USA
Randelle M. Bundy
School of Oceanography, University of Washington, 1501 NE Boat Street, Seattle, WA 98195, USA
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Noelle A. Held, Korrina Kunde, Clare E. Davis, Neil J. Wyatt, Elizabeth L. Mann, E. Malcolm S. Woodward, Matthew McIlvin, Alessandro Tagliabue, Benjamin S. Twining, Claire Mahaffey, Mak A. Saito, and Maeve C. Lohan
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Pearse J. Buchanan, Juan J. Pierella Karlusich, Robyn E. Tuerena, Roxana Shafiee, E. Malcolm S. Woodward, Chris Bowler, and Alessandro Tagliabue
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Weiyi Tang, Bess B. Ward, Michael Beman, Laura Bristow, Darren Clark, Sarah Fawcett, Claudia Frey, François Fripiat, Gerhard J. Herndl, Mhlangabezi Mdutyana, Fabien Paulot, Xuefeng Peng, Alyson E. Santoro, Takuhei Shiozaki, Eva Sintes, Charles Stock, Xin Sun, Xianhui S. Wan, Min N. Xu, and Yao Zhang
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Alastair J. M. Lough, Alessandro Tagliabue, Clément Demasy, Joseph A. Resing, Travis Mellett, Neil J. Wyatt, and Maeve C. Lohan
Biogeosciences, 20, 405–420, https://doi.org/10.5194/bg-20-405-2023, https://doi.org/10.5194/bg-20-405-2023, 2023
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Iron is a key nutrient for ocean primary productivity. Hydrothermal vents are a source of iron to the oceans, but the size of this source is poorly understood. This study examines the variability in iron inputs between hydrothermal vents in different geological settings. The vents studied release different amounts of Fe, resulting in plumes with similar dissolved iron concentrations but different particulate concentrations. This will help to refine modelling of iron-limited ocean productivity.
Emily J. Zakem, Barbara Bayer, Wei Qin, Alyson E. Santoro, Yao Zhang, and Naomi M. Levine
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The impact of anthropogenic climate change on the biological production of phytoplankton in the ocean is a cause for concern because its evolution could affect the response of marine ecosystems to climate change. Here, we identify biological N fixation and its response to future climate change as a key process in shaping the future evolution of marine phytoplankton production. Our results show that further study of how this nitrogen fixation responds to environmental change is essential.
Rebecca Chmiel, Nathan Lanning, Allison Laubach, Jong-Mi Lee, Jessica Fitzsimmons, Mariko Hatta, William Jenkins, Phoebe Lam, Matthew McIlvin, Alessandro Tagliabue, and Mak Saito
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Neil J. Wyatt, Angela Milne, Eric P. Achterberg, Thomas J. Browning, Heather A. Bouman, E. Malcolm S. Woodward, and Maeve C. Lohan
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The South Atlantic near 40° S is one of the high-productivity and most dynamic nutrient regions in the oceans, but the sources and fluxes of trace elements (TEs) to this region remain unclear. This study investigates seawater Ra-228 and provides important constraints on ocean mixing and dissolved TE fluxes to this region. Vertical mixing is a more important source than aeolian or shelf inputs in this region, but particulate or winter deep-mixing inputs may be required to balance the TE budgets.
Randelle M. Bundy, Alessandro Tagliabue, Nicholas J. Hawco, Peter L. Morton, Benjamin S. Twining, Mariko Hatta, Abigail E. Noble, Mattias R. Cape, Seth G. John, Jay T. Cullen, and Mak A. Saito
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Cobalt (Co) is an essential nutrient for ocean microbes and is scarce in most areas of the ocean. This study measured Co concentrations in the Arctic Ocean for the first time and found that Co levels are extremely high in the surface waters of the Canadian Arctic. Although the Co primarily originates from the shelf, the high concentrations persist throughout the central Arctic. Co in the Arctic appears to be increasing over time and might be a source of Co to the North Atlantic.
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Co-editor-in-chief
In their study, Hoffmann and co-workers provide new exciting data on the role of organic ligands in supporting elevated dissolved iron in hydrothermal vent plumes. The authors were able to detect siderophores (including amphiphilic types) in hydrothermal plumes at different sites along a 1,700 km section of the Mid-Atlantic Ridge, pointing to microbial utilization of siderophores to access particulate hydrothermal iron.
In their study, Hoffmann and co-workers provide new exciting data on the role of organic ligands...
Short summary
Hydrothermally derived iron can be transported kilometers away from deep-sea vents, representing a significant flux of vital micronutrients to the ocean. However, the mechanisms that support the stabilization of dissolved iron remain elusive. Using electrochemical, spectrometry, and genomic methods, we demonstrated that strong ligands exert an important control on iron in plumes, and high-affinity iron-binding siderophores were identified in several hydrothermal plume samples for the first time.
Hydrothermally derived iron can be transported kilometers away from deep-sea vents, representing...
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