Summer community structure of aerobic anoxygenic phototrophic bacteria in the western Arctic Ocean
Aerobic anoxygenic phototrophic (AAP) bacteria are found in a range of aquatic and terrestrial environments, potentially playing unique roles in biogeochemical cycles. Although known to occur in the Arctic Ocean, their ecology and the factors that govern their community structure and distribution in...
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ftzenodo:oai:zenodo.org:7128 2023-06-06T11:49:25+02:00 Summer community structure of aerobic anoxygenic phototrophic bacteria in the western Arctic Ocean Boeuf, Dominique Cottrell, Matthew T. Kirchman, David L. Lebaron, Philippe Oceanologique, Banyuls-sur-mer, France Jeanthon, Christian Diversite en Milieu Marin, Station Biologique, Roscoff, France; 2013-05-01 https://zenodo.org/record/7128 https://doi.org/10.1111/1574-6941.12130 unknown info:eu-repo/grantAgreement/EC/FP7/287589/ https://zenodo.org/communities/ecfunded https://zenodo.org/communities/zenodo https://zenodo.org/record/7128 https://doi.org/10.1111/1574-6941.12130 oai:zenodo.org:7128 info:eu-repo/semantics/closedAccess FEMS microbiology ecology 85(3) 1–16 (2013) Arctic Ocean Mackenzie River aerobic anoxygenic phototrophic bacteria bacteriochlorophyll photoheterotroph pufM gene info:eu-repo/semantics/article publication-article 2013 ftzenodo https://doi.org/10.1111/1574-6941.12130 2023-04-13T21:52:14Z Aerobic anoxygenic phototrophic (AAP) bacteria are found in a range of aquatic and terrestrial environments, potentially playing unique roles in biogeochemical cycles. Although known to occur in the Arctic Ocean, their ecology and the factors that govern their community structure and distribution in this extreme environment are poorly understood. Here, we examined summer AAP abundance and diversity in the North East Pacific and the Arctic Ocean with emphasis on the southern Beaufort Sea. AAP bacteria comprised up to 10 and 14% of the prokaryotic community in the bottom nepheloid layer and surface waters of the Mackenzie plume, respectively. However, relative AAP abundances were low in offshore waters. Environmental pufM clone libraries revealed that AAP bacteria in the Alphaproteobacteria and Betaproteobacteria classes dominated in offshore and in river-influenced surface waters, respectively. The most frequent AAP group was a new uncultivated betaproteobacterial clade whose abundance decreased along the salinity gradient of the Mackenzie plume even though its photosynthetic genes were actively expressed in offshore waters. Our data indicate that AAP bacterial assemblages represented a mixture of freshwater and marine taxa mostly restricted to the Arctic Ocean and highlight the substantial influence of riverine inputs on their distribution in coastal environments. Article in Journal/Newspaper Arctic Arctic Ocean Beaufort Sea Mackenzie river Zenodo Arctic Arctic Ocean Mackenzie River Pacific FEMS Microbiology Ecology 85 3 417 432 |
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ftzenodo |
language |
unknown |
topic |
Arctic Ocean Mackenzie River aerobic anoxygenic phototrophic bacteria bacteriochlorophyll photoheterotroph pufM gene |
spellingShingle |
Arctic Ocean Mackenzie River aerobic anoxygenic phototrophic bacteria bacteriochlorophyll photoheterotroph pufM gene Boeuf, Dominique Cottrell, Matthew T. Kirchman, David L. Lebaron, Philippe Oceanologique, Banyuls-sur-mer, France Jeanthon, Christian Diversite en Milieu Marin, Station Biologique, Roscoff, France; Summer community structure of aerobic anoxygenic phototrophic bacteria in the western Arctic Ocean |
topic_facet |
Arctic Ocean Mackenzie River aerobic anoxygenic phototrophic bacteria bacteriochlorophyll photoheterotroph pufM gene |
description |
Aerobic anoxygenic phototrophic (AAP) bacteria are found in a range of aquatic and terrestrial environments, potentially playing unique roles in biogeochemical cycles. Although known to occur in the Arctic Ocean, their ecology and the factors that govern their community structure and distribution in this extreme environment are poorly understood. Here, we examined summer AAP abundance and diversity in the North East Pacific and the Arctic Ocean with emphasis on the southern Beaufort Sea. AAP bacteria comprised up to 10 and 14% of the prokaryotic community in the bottom nepheloid layer and surface waters of the Mackenzie plume, respectively. However, relative AAP abundances were low in offshore waters. Environmental pufM clone libraries revealed that AAP bacteria in the Alphaproteobacteria and Betaproteobacteria classes dominated in offshore and in river-influenced surface waters, respectively. The most frequent AAP group was a new uncultivated betaproteobacterial clade whose abundance decreased along the salinity gradient of the Mackenzie plume even though its photosynthetic genes were actively expressed in offshore waters. Our data indicate that AAP bacterial assemblages represented a mixture of freshwater and marine taxa mostly restricted to the Arctic Ocean and highlight the substantial influence of riverine inputs on their distribution in coastal environments. |
format |
Article in Journal/Newspaper |
author |
Boeuf, Dominique Cottrell, Matthew T. Kirchman, David L. Lebaron, Philippe Oceanologique, Banyuls-sur-mer, France Jeanthon, Christian Diversite en Milieu Marin, Station Biologique, Roscoff, France; |
author_facet |
Boeuf, Dominique Cottrell, Matthew T. Kirchman, David L. Lebaron, Philippe Oceanologique, Banyuls-sur-mer, France Jeanthon, Christian Diversite en Milieu Marin, Station Biologique, Roscoff, France; |
author_sort |
Boeuf, Dominique |
title |
Summer community structure of aerobic anoxygenic phototrophic bacteria in the western Arctic Ocean |
title_short |
Summer community structure of aerobic anoxygenic phototrophic bacteria in the western Arctic Ocean |
title_full |
Summer community structure of aerobic anoxygenic phototrophic bacteria in the western Arctic Ocean |
title_fullStr |
Summer community structure of aerobic anoxygenic phototrophic bacteria in the western Arctic Ocean |
title_full_unstemmed |
Summer community structure of aerobic anoxygenic phototrophic bacteria in the western Arctic Ocean |
title_sort |
summer community structure of aerobic anoxygenic phototrophic bacteria in the western arctic ocean |
publishDate |
2013 |
url |
https://zenodo.org/record/7128 https://doi.org/10.1111/1574-6941.12130 |
geographic |
Arctic Arctic Ocean Mackenzie River Pacific |
geographic_facet |
Arctic Arctic Ocean Mackenzie River Pacific |
genre |
Arctic Arctic Ocean Beaufort Sea Mackenzie river |
genre_facet |
Arctic Arctic Ocean Beaufort Sea Mackenzie river |
op_source |
FEMS microbiology ecology 85(3) 1–16 (2013) |
op_relation |
info:eu-repo/grantAgreement/EC/FP7/287589/ https://zenodo.org/communities/ecfunded https://zenodo.org/communities/zenodo https://zenodo.org/record/7128 https://doi.org/10.1111/1574-6941.12130 oai:zenodo.org:7128 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1111/1574-6941.12130 |
container_title |
FEMS Microbiology Ecology |
container_volume |
85 |
container_issue |
3 |
container_start_page |
417 |
op_container_end_page |
432 |
_version_ |
1767955041720729600 |