Diatoms shape the biogeography of heterotrophic prokaryotes in early spring in the Southern Ocean
The interplay among microorganisms profoundly impacts biogeochemical cycles in the ocean. Culture‐based work has illustrated the diversity of diatom–prokaryote interactions, but the question of whether these associations can affect the spatial distribution of microbial communities is open. Here, we...
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ftarchimer:oai:archimer.ifremer.fr:59759 2023-09-05T13:23:26+02:00 Diatoms shape the biogeography of heterotrophic prokaryotes in early spring in the Southern Ocean Liu, Yan Debeljak, Pavla Rembauville, Mathieu Blain, Stéphane Obernosterer, Ingrid 2019-04 application/pdf https://archimer.ifremer.fr/doc/00486/59759/85336.pdf https://doi.org/10.1111/1462-2920.14579 https://archimer.ifremer.fr/doc/00486/59759/ eng eng Wiley https://archimer.ifremer.fr/doc/00486/59759/85336.pdf doi:10.1111/1462-2920.14579 https://archimer.ifremer.fr/doc/00486/59759/ info:eu-repo/semantics/openAccess restricted use Environmental Microbiology (1462-2912) (Wiley), 2019-04 , Vol. 21 , N. 4 , P. 1452-1465 text Article info:eu-repo/semantics/article 2019 ftarchimer https://doi.org/10.1111/1462-2920.14579 2023-08-22T22:51:07Z The interplay among microorganisms profoundly impacts biogeochemical cycles in the ocean. Culture‐based work has illustrated the diversity of diatom–prokaryote interactions, but the question of whether these associations can affect the spatial distribution of microbial communities is open. Here, we investigated the relationship between assemblages of diatoms and of heterotrophic prokaryotes in surface waters of the Indian sector of the Southern Ocean in early spring. The community composition of diatoms and that of total and active prokaryotes were different among the major ocean zones investigated. We found significant relationships between compositional changes of diatoms and of prokaryotes. In contrast, spatial changes in the prokaryotic community composition were not related to geographic distance and to environmental parameters when the effect of diatoms was accounted for. Diatoms explained 30% of the variance in both the total and the active prokaryotic community composition in early spring in the Southern Ocean. Using co‐occurrence analyses, we identified a large number of highly significant correlations between abundant diatom species and prokaryotic taxa. Our results show that key diatom species of the Southern Ocean are each associated with a distinct prokaryotic community, suggesting that diatom assemblages contribute to shaping the habitat type for heterotrophic prokaryotes. Article in Journal/Newspaper Southern Ocean Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Indian Southern Ocean Environmental Microbiology 21 4 1452 1465 |
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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 |
The interplay among microorganisms profoundly impacts biogeochemical cycles in the ocean. Culture‐based work has illustrated the diversity of diatom–prokaryote interactions, but the question of whether these associations can affect the spatial distribution of microbial communities is open. Here, we investigated the relationship between assemblages of diatoms and of heterotrophic prokaryotes in surface waters of the Indian sector of the Southern Ocean in early spring. The community composition of diatoms and that of total and active prokaryotes were different among the major ocean zones investigated. We found significant relationships between compositional changes of diatoms and of prokaryotes. In contrast, spatial changes in the prokaryotic community composition were not related to geographic distance and to environmental parameters when the effect of diatoms was accounted for. Diatoms explained 30% of the variance in both the total and the active prokaryotic community composition in early spring in the Southern Ocean. Using co‐occurrence analyses, we identified a large number of highly significant correlations between abundant diatom species and prokaryotic taxa. Our results show that key diatom species of the Southern Ocean are each associated with a distinct prokaryotic community, suggesting that diatom assemblages contribute to shaping the habitat type for heterotrophic prokaryotes. |
format |
Article in Journal/Newspaper |
author |
Liu, Yan Debeljak, Pavla Rembauville, Mathieu Blain, Stéphane Obernosterer, Ingrid |
spellingShingle |
Liu, Yan Debeljak, Pavla Rembauville, Mathieu Blain, Stéphane Obernosterer, Ingrid Diatoms shape the biogeography of heterotrophic prokaryotes in early spring in the Southern Ocean |
author_facet |
Liu, Yan Debeljak, Pavla Rembauville, Mathieu Blain, Stéphane Obernosterer, Ingrid |
author_sort |
Liu, Yan |
title |
Diatoms shape the biogeography of heterotrophic prokaryotes in early spring in the Southern Ocean |
title_short |
Diatoms shape the biogeography of heterotrophic prokaryotes in early spring in the Southern Ocean |
title_full |
Diatoms shape the biogeography of heterotrophic prokaryotes in early spring in the Southern Ocean |
title_fullStr |
Diatoms shape the biogeography of heterotrophic prokaryotes in early spring in the Southern Ocean |
title_full_unstemmed |
Diatoms shape the biogeography of heterotrophic prokaryotes in early spring in the Southern Ocean |
title_sort |
diatoms shape the biogeography of heterotrophic prokaryotes in early spring in the southern ocean |
publisher |
Wiley |
publishDate |
2019 |
url |
https://archimer.ifremer.fr/doc/00486/59759/85336.pdf https://doi.org/10.1111/1462-2920.14579 https://archimer.ifremer.fr/doc/00486/59759/ |
geographic |
Indian Southern Ocean |
geographic_facet |
Indian Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
Environmental Microbiology (1462-2912) (Wiley), 2019-04 , Vol. 21 , N. 4 , P. 1452-1465 |
op_relation |
https://archimer.ifremer.fr/doc/00486/59759/85336.pdf doi:10.1111/1462-2920.14579 https://archimer.ifremer.fr/doc/00486/59759/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1111/1462-2920.14579 |
container_title |
Environmental Microbiology |
container_volume |
21 |
container_issue |
4 |
container_start_page |
1452 |
op_container_end_page |
1465 |
_version_ |
1776204020711424000 |