Cobalamin and microbial plankton dynamics along a coastal to offshore transect in the Eastern North Atlantic Ocean
25 pages, 1 table, 5 figures Cobalamin (B12) is an essential cofactor that is exclusively synthesized by some prokaryotes while many prokaryotes and eukaryotes require an external supply of B12. The spatial and temporal availability of B12 is poorly understood in marine ecosystems. Field measurement...
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Online Access: | http://hdl.handle.net/10261/237211 https://doi.org/10.1111/1462-2920.15367 |
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ftcsic:oai:digital.csic.es:10261/237211 2024-02-11T10:06:19+01:00 Cobalamin and microbial plankton dynamics along a coastal to offshore transect in the Eastern North Atlantic Ocean Joglar, V. Álvarez-Salgado, Xosé Antón Gago, Ana Leao, Jose M. Pérez-Martínez, Clara Pontiller, Benjamin Lundin, Daniel Pinhassi, Jarone Fernández, Emilio Teira, Eva 2021 http://hdl.handle.net/10261/237211 https://doi.org/10.1111/1462-2920.15367 en eng John Wiley & Sons Postprint https://doi.org/10.1111/1462-2920.15367 Sí Environmental Microbiology 23(3): 1559-1583 (2021) 1462-2912 http://hdl.handle.net/10261/237211 doi:10.1111/1462-2920.15367 1462-2920 open artículo http://purl.org/coar/resource_type/c_6501 2021 ftcsic https://doi.org/10.1111/1462-2920.15367 2024-01-16T11:06:42Z 25 pages, 1 table, 5 figures Cobalamin (B12) is an essential cofactor that is exclusively synthesized by some prokaryotes while many prokaryotes and eukaryotes require an external supply of B12. The spatial and temporal availability of B12 is poorly understood in marine ecosystems. Field measurements of B12 along with a large set of ancillary biotic and abiotic factors were obtained during three oceanographic cruises in the NW Iberian Peninsula, covering different spatial and temporal scales. B12 concentrations were remarkably low (<1.5 pM) in all samples, being significantly higher at the subsurface Eastern North Atlantic Central Water than at shallower depths, suggesting that B12 supply in this water mass is greater than demand. Multiple regression models excluded B12 concentration as predictive variable for phytoplankton biomass or production, regardless of the presence of B12‐requiring algae. Prokaryote production was the best predictor for primary production, and eukaryote community composition was better correlated with prokaryote community composition than with nutritional resources, suggesting that biotic interactions play a significant role in regulating microbial communities. Interestingly, co‐occurrence network analyses based on 16S and 18S rRNA sequences allowed the identification of significant associations between potential B12 producers and consumers (e.g. Thaumarchaeota and Dynophyceae, or Amylibacter and Ostreococcus respectively), which can now be investigated using model systems in the laboratory The scintillation counter was supported by the 2006‐06 ICTS project of the Ministry of Science and Innovation at the Spanish Institute of Oceanography. This research was supported by the Spanish Ministry of Economy and Competitiveness through the ENVISION (CTM2014‐59031‐P) and INTERES (CTM2017‐83362‐R) projects. Further support was provided by the Swedish Research Council VR. Vanessa Joglar was supported by an FPI fellowship from the Spanish Ministry of Economy and Competitiveness Peer ... Article in Journal/Newspaper North Atlantic Digital.CSIC (Spanish National Research Council) Environmental Microbiology 23 3 1559 1583 |
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Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
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ftcsic |
language |
English |
description |
25 pages, 1 table, 5 figures Cobalamin (B12) is an essential cofactor that is exclusively synthesized by some prokaryotes while many prokaryotes and eukaryotes require an external supply of B12. The spatial and temporal availability of B12 is poorly understood in marine ecosystems. Field measurements of B12 along with a large set of ancillary biotic and abiotic factors were obtained during three oceanographic cruises in the NW Iberian Peninsula, covering different spatial and temporal scales. B12 concentrations were remarkably low (<1.5 pM) in all samples, being significantly higher at the subsurface Eastern North Atlantic Central Water than at shallower depths, suggesting that B12 supply in this water mass is greater than demand. Multiple regression models excluded B12 concentration as predictive variable for phytoplankton biomass or production, regardless of the presence of B12‐requiring algae. Prokaryote production was the best predictor for primary production, and eukaryote community composition was better correlated with prokaryote community composition than with nutritional resources, suggesting that biotic interactions play a significant role in regulating microbial communities. Interestingly, co‐occurrence network analyses based on 16S and 18S rRNA sequences allowed the identification of significant associations between potential B12 producers and consumers (e.g. Thaumarchaeota and Dynophyceae, or Amylibacter and Ostreococcus respectively), which can now be investigated using model systems in the laboratory The scintillation counter was supported by the 2006‐06 ICTS project of the Ministry of Science and Innovation at the Spanish Institute of Oceanography. This research was supported by the Spanish Ministry of Economy and Competitiveness through the ENVISION (CTM2014‐59031‐P) and INTERES (CTM2017‐83362‐R) projects. Further support was provided by the Swedish Research Council VR. Vanessa Joglar was supported by an FPI fellowship from the Spanish Ministry of Economy and Competitiveness Peer ... |
format |
Article in Journal/Newspaper |
author |
Joglar, V. Álvarez-Salgado, Xosé Antón Gago, Ana Leao, Jose M. Pérez-Martínez, Clara Pontiller, Benjamin Lundin, Daniel Pinhassi, Jarone Fernández, Emilio Teira, Eva |
spellingShingle |
Joglar, V. Álvarez-Salgado, Xosé Antón Gago, Ana Leao, Jose M. Pérez-Martínez, Clara Pontiller, Benjamin Lundin, Daniel Pinhassi, Jarone Fernández, Emilio Teira, Eva Cobalamin and microbial plankton dynamics along a coastal to offshore transect in the Eastern North Atlantic Ocean |
author_facet |
Joglar, V. Álvarez-Salgado, Xosé Antón Gago, Ana Leao, Jose M. Pérez-Martínez, Clara Pontiller, Benjamin Lundin, Daniel Pinhassi, Jarone Fernández, Emilio Teira, Eva |
author_sort |
Joglar, V. |
title |
Cobalamin and microbial plankton dynamics along a coastal to offshore transect in the Eastern North Atlantic Ocean |
title_short |
Cobalamin and microbial plankton dynamics along a coastal to offshore transect in the Eastern North Atlantic Ocean |
title_full |
Cobalamin and microbial plankton dynamics along a coastal to offshore transect in the Eastern North Atlantic Ocean |
title_fullStr |
Cobalamin and microbial plankton dynamics along a coastal to offshore transect in the Eastern North Atlantic Ocean |
title_full_unstemmed |
Cobalamin and microbial plankton dynamics along a coastal to offshore transect in the Eastern North Atlantic Ocean |
title_sort |
cobalamin and microbial plankton dynamics along a coastal to offshore transect in the eastern north atlantic ocean |
publisher |
John Wiley & Sons |
publishDate |
2021 |
url |
http://hdl.handle.net/10261/237211 https://doi.org/10.1111/1462-2920.15367 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Postprint https://doi.org/10.1111/1462-2920.15367 Sí Environmental Microbiology 23(3): 1559-1583 (2021) 1462-2912 http://hdl.handle.net/10261/237211 doi:10.1111/1462-2920.15367 1462-2920 |
op_rights |
open |
op_doi |
https://doi.org/10.1111/1462-2920.15367 |
container_title |
Environmental Microbiology |
container_volume |
23 |
container_issue |
3 |
container_start_page |
1559 |
op_container_end_page |
1583 |
_version_ |
1790603969447329792 |