Coastal Upwelling Enhances Abundance of a Symbiotic Diazotroph (UCYN-A) and Its Haptophyte Host in the Arctic Ocean
The apparently obligate symbiosis between the diazotroph Candidatus Atelocyanobacterium thalassa (UCYN-A) and its haptophyte host, Braarudosphaera bigelowii, has recently been found to fix dinitrogen (N2) in polar waters at rates (per cell) comparable to those observed in the tropical/subtropical ol...
Published in: | Frontiers in Marine Science |
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Online Access: | https://digitalcommons.odu.edu/oeas_fac_pubs/463 https://doi.org/10.3389/fmars.2022.877562 https://digitalcommons.odu.edu/context/oeas_fac_pubs/article/1474/viewcontent/Selden_2022_CoastalUpwellingEnhancesAbundanceofaSymbioticOCR.pdf |
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ftolddominionuni:oai:digitalcommons.odu.edu:oeas_fac_pubs-1474 2023-06-11T04:09:03+02:00 Coastal Upwelling Enhances Abundance of a Symbiotic Diazotroph (UCYN-A) and Its Haptophyte Host in the Arctic Ocean Selden, Corday R. Einarsson, Sveinn V. Lowry, Kate E. Crider, Katherine E. Pickart, Robert S. Lin, Peigen Ashjian, Carin J. Chappell, P. Dreux 2022-01-01T08:00:00Z application/pdf https://digitalcommons.odu.edu/oeas_fac_pubs/463 https://doi.org/10.3389/fmars.2022.877562 https://digitalcommons.odu.edu/context/oeas_fac_pubs/article/1474/viewcontent/Selden_2022_CoastalUpwellingEnhancesAbundanceofaSymbioticOCR.pdf unknown ODU Digital Commons https://digitalcommons.odu.edu/oeas_fac_pubs/463 doi:10.3389/fmars.2022.877562 https://digitalcommons.odu.edu/context/oeas_fac_pubs/article/1474/viewcontent/Selden_2022_CoastalUpwellingEnhancesAbundanceofaSymbioticOCR.pdf © 2022 Selden, Einarsson, Lowry, Crider, Pickart, Lin, Ashjian and Chappell. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY) . The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. OES Faculty Publications N2 fixation Diazotroph UCYN-A Braarudosphaera bigelowii Arctic ocean Upwelling Shelfbreak Nitrogen Biochemistry Climate Oceanography and Atmospheric Sciences and Meteorology article 2022 ftolddominionuni https://doi.org/10.3389/fmars.2022.877562 2023-05-08T18:02:42Z The apparently obligate symbiosis between the diazotroph Candidatus Atelocyanobacterium thalassa (UCYN-A) and its haptophyte host, Braarudosphaera bigelowii, has recently been found to fix dinitrogen (N2) in polar waters at rates (per cell) comparable to those observed in the tropical/subtropical oligotrophic ocean basins. This study presents the novel observation that this symbiosis increased in abundance during a wind-driven upwelling event along the Alaskan Beaufort shelfbreak. As upwelling relaxed, the relative abundance of B. bigelowii among eukaryotic phytoplankton increased most significantly in waters over the upper slope. As the host’s nitrogen demands are believed to be supplied primarily by UCYN-A, this response suggests that upwelling may enhance N2 fixation as displaced coastal waters are advected offshore, potentially extending the duration of upwelling-induced phytoplankton blooms. Given that such events are projected to increase in intensity and number with ocean warming, upwelling-driven N2 fixation as a feedback on climate merits investigation. Article in Journal/Newspaper Arctic Arctic Ocean Phytoplankton Old Dominion University: ODU Digital Commons Arctic Arctic Ocean Frontiers in Marine Science 9 |
institution |
Open Polar |
collection |
Old Dominion University: ODU Digital Commons |
op_collection_id |
ftolddominionuni |
language |
unknown |
topic |
N2 fixation Diazotroph UCYN-A Braarudosphaera bigelowii Arctic ocean Upwelling Shelfbreak Nitrogen Biochemistry Climate Oceanography and Atmospheric Sciences and Meteorology |
spellingShingle |
N2 fixation Diazotroph UCYN-A Braarudosphaera bigelowii Arctic ocean Upwelling Shelfbreak Nitrogen Biochemistry Climate Oceanography and Atmospheric Sciences and Meteorology Selden, Corday R. Einarsson, Sveinn V. Lowry, Kate E. Crider, Katherine E. Pickart, Robert S. Lin, Peigen Ashjian, Carin J. Chappell, P. Dreux Coastal Upwelling Enhances Abundance of a Symbiotic Diazotroph (UCYN-A) and Its Haptophyte Host in the Arctic Ocean |
topic_facet |
N2 fixation Diazotroph UCYN-A Braarudosphaera bigelowii Arctic ocean Upwelling Shelfbreak Nitrogen Biochemistry Climate Oceanography and Atmospheric Sciences and Meteorology |
description |
The apparently obligate symbiosis between the diazotroph Candidatus Atelocyanobacterium thalassa (UCYN-A) and its haptophyte host, Braarudosphaera bigelowii, has recently been found to fix dinitrogen (N2) in polar waters at rates (per cell) comparable to those observed in the tropical/subtropical oligotrophic ocean basins. This study presents the novel observation that this symbiosis increased in abundance during a wind-driven upwelling event along the Alaskan Beaufort shelfbreak. As upwelling relaxed, the relative abundance of B. bigelowii among eukaryotic phytoplankton increased most significantly in waters over the upper slope. As the host’s nitrogen demands are believed to be supplied primarily by UCYN-A, this response suggests that upwelling may enhance N2 fixation as displaced coastal waters are advected offshore, potentially extending the duration of upwelling-induced phytoplankton blooms. Given that such events are projected to increase in intensity and number with ocean warming, upwelling-driven N2 fixation as a feedback on climate merits investigation. |
format |
Article in Journal/Newspaper |
author |
Selden, Corday R. Einarsson, Sveinn V. Lowry, Kate E. Crider, Katherine E. Pickart, Robert S. Lin, Peigen Ashjian, Carin J. Chappell, P. Dreux |
author_facet |
Selden, Corday R. Einarsson, Sveinn V. Lowry, Kate E. Crider, Katherine E. Pickart, Robert S. Lin, Peigen Ashjian, Carin J. Chappell, P. Dreux |
author_sort |
Selden, Corday R. |
title |
Coastal Upwelling Enhances Abundance of a Symbiotic Diazotroph (UCYN-A) and Its Haptophyte Host in the Arctic Ocean |
title_short |
Coastal Upwelling Enhances Abundance of a Symbiotic Diazotroph (UCYN-A) and Its Haptophyte Host in the Arctic Ocean |
title_full |
Coastal Upwelling Enhances Abundance of a Symbiotic Diazotroph (UCYN-A) and Its Haptophyte Host in the Arctic Ocean |
title_fullStr |
Coastal Upwelling Enhances Abundance of a Symbiotic Diazotroph (UCYN-A) and Its Haptophyte Host in the Arctic Ocean |
title_full_unstemmed |
Coastal Upwelling Enhances Abundance of a Symbiotic Diazotroph (UCYN-A) and Its Haptophyte Host in the Arctic Ocean |
title_sort |
coastal upwelling enhances abundance of a symbiotic diazotroph (ucyn-a) and its haptophyte host in the arctic ocean |
publisher |
ODU Digital Commons |
publishDate |
2022 |
url |
https://digitalcommons.odu.edu/oeas_fac_pubs/463 https://doi.org/10.3389/fmars.2022.877562 https://digitalcommons.odu.edu/context/oeas_fac_pubs/article/1474/viewcontent/Selden_2022_CoastalUpwellingEnhancesAbundanceofaSymbioticOCR.pdf |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Phytoplankton |
genre_facet |
Arctic Arctic Ocean Phytoplankton |
op_source |
OES Faculty Publications |
op_relation |
https://digitalcommons.odu.edu/oeas_fac_pubs/463 doi:10.3389/fmars.2022.877562 https://digitalcommons.odu.edu/context/oeas_fac_pubs/article/1474/viewcontent/Selden_2022_CoastalUpwellingEnhancesAbundanceofaSymbioticOCR.pdf |
op_rights |
© 2022 Selden, Einarsson, Lowry, Crider, Pickart, Lin, Ashjian and Chappell. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY) . The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
op_doi |
https://doi.org/10.3389/fmars.2022.877562 |
container_title |
Frontiers in Marine Science |
container_volume |
9 |
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1768382756782342144 |