Potential cobalt limitation of vitamin B12 synthesis in the North Atlantic Ocean
[1] While recent studies have confirmed the ecological importance of vitamin B12, it is unclear whether the production of this vitamin could be limited by dissolved Co, a trace metal required for B12 biosynthesis, but found at only subnanomolar concentrations in the open ocean. Herein, we demonstrat...
Published in: | Global Biogeochemical Cycles |
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AGU (American Geophysical Union)
2008
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Online Access: | https://oceanrep.geomar.de/id/eprint/39825/ https://oceanrep.geomar.de/id/eprint/39825/1/Panzeca.pdf https://doi.org/10.1029/2007GB003124 |
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ftoceanrep:oai:oceanrep.geomar.de:39825 2023-05-15T17:29:29+02:00 Potential cobalt limitation of vitamin B12 synthesis in the North Atlantic Ocean Panzeca, C. Beck, Aaron J. Leblanc, K. Taylor, G. T. Hutchins, D. A. Sañudo-Wilhelmy, S. A. 2008 text https://oceanrep.geomar.de/id/eprint/39825/ https://oceanrep.geomar.de/id/eprint/39825/1/Panzeca.pdf https://doi.org/10.1029/2007GB003124 en eng AGU (American Geophysical Union) https://oceanrep.geomar.de/id/eprint/39825/1/Panzeca.pdf Panzeca, C., Beck, A. J. , Leblanc, K., Taylor, G. T., Hutchins, D. A. and Sañudo-Wilhelmy, S. A. (2008) Potential cobalt limitation of vitamin B12 synthesis in the North Atlantic Ocean. Global Biogeochemical Cycles, 22 (2). GB2029. DOI 10.1029/2007GB003124 <https://doi.org/10.1029/2007GB003124>. doi:10.1029/2007GB003124 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 2008 ftoceanrep https://doi.org/10.1029/2007GB003124 2023-04-07T15:35:53Z [1] While recent studies have confirmed the ecological importance of vitamin B12, it is unclear whether the production of this vitamin could be limited by dissolved Co, a trace metal required for B12 biosynthesis, but found at only subnanomolar concentrations in the open ocean. Herein, we demonstrate that the spatial distribution of dissolved B12 (range: 0.13–5 pmol L−1) in the North Atlantic Ocean follows the abundance of total dissolved Co (range: 15–81 pmol L−1). Similar patterns were observed for bacterial productivity (range: 20–103 pmol 3H leucine L−1 hr−1) and algal biomass (range: 0.4–3.9 μg L−1). In contrast, vitamin B1 concentrations (range: 0.7–30 pM) were decoupled from both Co and B12 concentrations. Cobalt amendment experiments carried out in low-dissolved Co waters (∼20 pmol L−1) enhanced B12 production two-fold over unamended controls. This study provides evidence that B12 synthesis could be limited by the availability of Co in some regions of the world ocean. Article in Journal/Newspaper North Atlantic OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Global Biogeochemical Cycles 22 2 n/a n/a |
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Open Polar |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
[1] While recent studies have confirmed the ecological importance of vitamin B12, it is unclear whether the production of this vitamin could be limited by dissolved Co, a trace metal required for B12 biosynthesis, but found at only subnanomolar concentrations in the open ocean. Herein, we demonstrate that the spatial distribution of dissolved B12 (range: 0.13–5 pmol L−1) in the North Atlantic Ocean follows the abundance of total dissolved Co (range: 15–81 pmol L−1). Similar patterns were observed for bacterial productivity (range: 20–103 pmol 3H leucine L−1 hr−1) and algal biomass (range: 0.4–3.9 μg L−1). In contrast, vitamin B1 concentrations (range: 0.7–30 pM) were decoupled from both Co and B12 concentrations. Cobalt amendment experiments carried out in low-dissolved Co waters (∼20 pmol L−1) enhanced B12 production two-fold over unamended controls. This study provides evidence that B12 synthesis could be limited by the availability of Co in some regions of the world ocean. |
format |
Article in Journal/Newspaper |
author |
Panzeca, C. Beck, Aaron J. Leblanc, K. Taylor, G. T. Hutchins, D. A. Sañudo-Wilhelmy, S. A. |
spellingShingle |
Panzeca, C. Beck, Aaron J. Leblanc, K. Taylor, G. T. Hutchins, D. A. Sañudo-Wilhelmy, S. A. Potential cobalt limitation of vitamin B12 synthesis in the North Atlantic Ocean |
author_facet |
Panzeca, C. Beck, Aaron J. Leblanc, K. Taylor, G. T. Hutchins, D. A. Sañudo-Wilhelmy, S. A. |
author_sort |
Panzeca, C. |
title |
Potential cobalt limitation of vitamin B12 synthesis in the North Atlantic Ocean |
title_short |
Potential cobalt limitation of vitamin B12 synthesis in the North Atlantic Ocean |
title_full |
Potential cobalt limitation of vitamin B12 synthesis in the North Atlantic Ocean |
title_fullStr |
Potential cobalt limitation of vitamin B12 synthesis in the North Atlantic Ocean |
title_full_unstemmed |
Potential cobalt limitation of vitamin B12 synthesis in the North Atlantic Ocean |
title_sort |
potential cobalt limitation of vitamin b12 synthesis in the north atlantic ocean |
publisher |
AGU (American Geophysical Union) |
publishDate |
2008 |
url |
https://oceanrep.geomar.de/id/eprint/39825/ https://oceanrep.geomar.de/id/eprint/39825/1/Panzeca.pdf https://doi.org/10.1029/2007GB003124 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://oceanrep.geomar.de/id/eprint/39825/1/Panzeca.pdf Panzeca, C., Beck, A. J. , Leblanc, K., Taylor, G. T., Hutchins, D. A. and Sañudo-Wilhelmy, S. A. (2008) Potential cobalt limitation of vitamin B12 synthesis in the North Atlantic Ocean. Global Biogeochemical Cycles, 22 (2). GB2029. DOI 10.1029/2007GB003124 <https://doi.org/10.1029/2007GB003124>. doi:10.1029/2007GB003124 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1029/2007GB003124 |
container_title |
Global Biogeochemical Cycles |
container_volume |
22 |
container_issue |
2 |
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n/a |
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n/a |
_version_ |
1766123617674854400 |