Shifts in bacterial community composition associated with increased carbon cycling in a mosaic of phytoplankton blooms
Marine microbes have a pivotal role in the marine biogeochemical cycle of carbon, because they regulate the turnover of dissolved organic matter (DOM), one of the largest carbon reservoirs on Earth. Microbial communities and DOM are both highly diverse components of the ocean system, yet the role of...
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ftarchimer:oai:archimer.ifremer.fr:53293 2023-05-15T18:25:33+02:00 Shifts in bacterial community composition associated with increased carbon cycling in a mosaic of phytoplankton blooms Landa, Marine Blain, Stephane Christaki, Urania Monchy, Sebastien Obernosterer, Ingrid 2016-01 application/pdf https://archimer.ifremer.fr/doc/00421/53293/54115.pdf https://archimer.ifremer.fr/doc/00421/53293/54116.xlsx https://archimer.ifremer.fr/doc/00421/53293/54117.pdf https://archimer.ifremer.fr/doc/00421/53293/54118.pdf https://archimer.ifremer.fr/doc/00421/53293/54119.pdf https://archimer.ifremer.fr/doc/00421/53293/54120.pdf https://archimer.ifremer.fr/doc/00421/53293/54121.pdf https://archimer.ifremer.fr/doc/00421/53293/54122.pdf https://archimer.ifremer.fr/doc/00421/53293/54123.pdf https://archimer.ifremer.fr/doc/00421/53293/54124.pdf https://archimer.ifremer.fr/doc/00421/53293/54125.pdf https://archimer.ifremer.fr/doc/00421/53293/54126.pdf https://archimer.ifremer.fr/doc/00421/53293/54127.pdf https://archimer.ifremer.fr/doc/00421/53293/54128.pdf https://doi.org/10.1038/ismej.2015.105 https://archimer.ifremer.fr/doc/00421/53293/ eng eng Nature Publishing Group https://archimer.ifremer.fr/doc/00421/53293/54115.pdf https://archimer.ifremer.fr/doc/00421/53293/54116.xlsx https://archimer.ifremer.fr/doc/00421/53293/54117.pdf https://archimer.ifremer.fr/doc/00421/53293/54118.pdf https://archimer.ifremer.fr/doc/00421/53293/54119.pdf https://archimer.ifremer.fr/doc/00421/53293/54120.pdf https://archimer.ifremer.fr/doc/00421/53293/54121.pdf https://archimer.ifremer.fr/doc/00421/53293/54122.pdf https://archimer.ifremer.fr/doc/00421/53293/54123.pdf https://archimer.ifremer.fr/doc/00421/53293/54124.pdf https://archimer.ifremer.fr/doc/00421/53293/54125.pdf https://archimer.ifremer.fr/doc/00421/53293/54126.pdf https://archimer.ifremer.fr/doc/00421/53293/54127.pdf https://archimer.ifremer.fr/doc/00421/53293/54128.pdf doi:10.1038/ismej.2015.105 https://archimer.ifremer.fr/doc/00421/53293/ 2016 International Society for Microbial Ecology All rights reserved info:eu-repo/semantics/openAccess restricted use Isme Journal (1751-7362) (Nature Publishing Group), 2016-01 , Vol. 10 , N. 1 , P. 39-50 text Publication info:eu-repo/semantics/article 2016 ftarchimer https://doi.org/10.1038/ismej.2015.105 2021-09-23T20:30:28Z Marine microbes have a pivotal role in the marine biogeochemical cycle of carbon, because they regulate the turnover of dissolved organic matter (DOM), one of the largest carbon reservoirs on Earth. Microbial communities and DOM are both highly diverse components of the ocean system, yet the role of microbial diversity for carbon processing remains thus far poorly understood. We report here results from an exploration of a mosaic of phytoplankton blooms induced by large-scale natural iron fertilization in the Southern Ocean. We show that in this unique ecosystem where concentrations of DOM are lowest in the global ocean, a patchwork of blooms is associated with diverse and distinct bacterial communities. By using on-board continuous cultures, we identify preferences in the degradation of DOM of different reactivity for taxa associated with contrasting blooms. We used the spatial and temporal variability provided by this natural laboratory to demonstrate that the magnitude of bacterial production is linked to the extent of compositional changes. Our results suggest that partitioning of the DOM resource could be a mechanism that structures bacterial communities with a positive feedback on carbon cycling. Our study, focused on bacterial carbon processing, highlights the potential role of diversity as a driving force for the cycling of biogeochemical elements. Article in Journal/Newspaper Southern Ocean Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Southern Ocean The ISME Journal 10 1 39 50 |
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Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
description |
Marine microbes have a pivotal role in the marine biogeochemical cycle of carbon, because they regulate the turnover of dissolved organic matter (DOM), one of the largest carbon reservoirs on Earth. Microbial communities and DOM are both highly diverse components of the ocean system, yet the role of microbial diversity for carbon processing remains thus far poorly understood. We report here results from an exploration of a mosaic of phytoplankton blooms induced by large-scale natural iron fertilization in the Southern Ocean. We show that in this unique ecosystem where concentrations of DOM are lowest in the global ocean, a patchwork of blooms is associated with diverse and distinct bacterial communities. By using on-board continuous cultures, we identify preferences in the degradation of DOM of different reactivity for taxa associated with contrasting blooms. We used the spatial and temporal variability provided by this natural laboratory to demonstrate that the magnitude of bacterial production is linked to the extent of compositional changes. Our results suggest that partitioning of the DOM resource could be a mechanism that structures bacterial communities with a positive feedback on carbon cycling. Our study, focused on bacterial carbon processing, highlights the potential role of diversity as a driving force for the cycling of biogeochemical elements. |
format |
Article in Journal/Newspaper |
author |
Landa, Marine Blain, Stephane Christaki, Urania Monchy, Sebastien Obernosterer, Ingrid |
spellingShingle |
Landa, Marine Blain, Stephane Christaki, Urania Monchy, Sebastien Obernosterer, Ingrid Shifts in bacterial community composition associated with increased carbon cycling in a mosaic of phytoplankton blooms |
author_facet |
Landa, Marine Blain, Stephane Christaki, Urania Monchy, Sebastien Obernosterer, Ingrid |
author_sort |
Landa, Marine |
title |
Shifts in bacterial community composition associated with increased carbon cycling in a mosaic of phytoplankton blooms |
title_short |
Shifts in bacterial community composition associated with increased carbon cycling in a mosaic of phytoplankton blooms |
title_full |
Shifts in bacterial community composition associated with increased carbon cycling in a mosaic of phytoplankton blooms |
title_fullStr |
Shifts in bacterial community composition associated with increased carbon cycling in a mosaic of phytoplankton blooms |
title_full_unstemmed |
Shifts in bacterial community composition associated with increased carbon cycling in a mosaic of phytoplankton blooms |
title_sort |
shifts in bacterial community composition associated with increased carbon cycling in a mosaic of phytoplankton blooms |
publisher |
Nature Publishing Group |
publishDate |
2016 |
url |
https://archimer.ifremer.fr/doc/00421/53293/54115.pdf https://archimer.ifremer.fr/doc/00421/53293/54116.xlsx https://archimer.ifremer.fr/doc/00421/53293/54117.pdf https://archimer.ifremer.fr/doc/00421/53293/54118.pdf https://archimer.ifremer.fr/doc/00421/53293/54119.pdf https://archimer.ifremer.fr/doc/00421/53293/54120.pdf https://archimer.ifremer.fr/doc/00421/53293/54121.pdf https://archimer.ifremer.fr/doc/00421/53293/54122.pdf https://archimer.ifremer.fr/doc/00421/53293/54123.pdf https://archimer.ifremer.fr/doc/00421/53293/54124.pdf https://archimer.ifremer.fr/doc/00421/53293/54125.pdf https://archimer.ifremer.fr/doc/00421/53293/54126.pdf https://archimer.ifremer.fr/doc/00421/53293/54127.pdf https://archimer.ifremer.fr/doc/00421/53293/54128.pdf https://doi.org/10.1038/ismej.2015.105 https://archimer.ifremer.fr/doc/00421/53293/ |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
Isme Journal (1751-7362) (Nature Publishing Group), 2016-01 , Vol. 10 , N. 1 , P. 39-50 |
op_relation |
https://archimer.ifremer.fr/doc/00421/53293/54115.pdf https://archimer.ifremer.fr/doc/00421/53293/54116.xlsx https://archimer.ifremer.fr/doc/00421/53293/54117.pdf https://archimer.ifremer.fr/doc/00421/53293/54118.pdf https://archimer.ifremer.fr/doc/00421/53293/54119.pdf https://archimer.ifremer.fr/doc/00421/53293/54120.pdf https://archimer.ifremer.fr/doc/00421/53293/54121.pdf https://archimer.ifremer.fr/doc/00421/53293/54122.pdf https://archimer.ifremer.fr/doc/00421/53293/54123.pdf https://archimer.ifremer.fr/doc/00421/53293/54124.pdf https://archimer.ifremer.fr/doc/00421/53293/54125.pdf https://archimer.ifremer.fr/doc/00421/53293/54126.pdf https://archimer.ifremer.fr/doc/00421/53293/54127.pdf https://archimer.ifremer.fr/doc/00421/53293/54128.pdf doi:10.1038/ismej.2015.105 https://archimer.ifremer.fr/doc/00421/53293/ |
op_rights |
2016 International Society for Microbial Ecology All rights reserved info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1038/ismej.2015.105 |
container_title |
The ISME Journal |
container_volume |
10 |
container_issue |
1 |
container_start_page |
39 |
op_container_end_page |
50 |
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1766207096389369856 |