An active bacterial community linked to high chl-a concentrations in Antarctic winter-pack ice and evidence for the development of an anaerobic sea-ice bacterial community
Antarctic sea-ice bacterial community composition and dynamics in various developmental stages were investigated during the austral winter in 2013. Thick snow cover likely insulated the ice, leading to high (<4 μg l–1) chlorophyll-a (chl-a) concentrations and consequent bacterial production. Typi...
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Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5607376/ http://www.ncbi.nlm.nih.gov/pubmed/28708127 https://doi.org/10.1038/ismej.2017.96 |
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ftpubmed:oai:pubmedcentral.nih.gov:5607376 2023-05-15T13:41:08+02:00 An active bacterial community linked to high chl-a concentrations in Antarctic winter-pack ice and evidence for the development of an anaerobic sea-ice bacterial community Eronen-Rasimus, Eeva Luhtanen, Anne-Mari Rintala, Janne-Markus Delille, Bruno Dieckmann, Gerhard Karkman, Antti Tison, Jean-Louis 2017-10 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5607376/ http://www.ncbi.nlm.nih.gov/pubmed/28708127 https://doi.org/10.1038/ismej.2017.96 en eng Nature Publishing Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5607376/ http://www.ncbi.nlm.nih.gov/pubmed/28708127 http://dx.doi.org/10.1038/ismej.2017.96 Copyright © 2017 International Society for Microbial Ecology Original Article Text 2017 ftpubmed https://doi.org/10.1038/ismej.2017.96 2018-10-07T00:11:48Z Antarctic sea-ice bacterial community composition and dynamics in various developmental stages were investigated during the austral winter in 2013. Thick snow cover likely insulated the ice, leading to high (<4 μg l–1) chlorophyll-a (chl-a) concentrations and consequent bacterial production. Typical sea-ice bacterial genera, for example, Octadecabacter, Polaribacter and Glaciecola, often abundant in spring and summer during the sea-ice algal bloom, predominated in the communities. The variability in bacterial community composition in the different ice types was mainly explained by the chl-a concentrations, suggesting that as in spring and summer sea ice, the sea-ice bacteria and algae may also be coupled during the Antarctic winter. Coupling between the bacterial community and sea-ice algae was further supported by significant correlations between bacterial abundance and production with chl-a. In addition, sulphate-reducing bacteria (for example, Desulforhopalus) together with odour of H2S were observed in thick, apparently anoxic ice, suggesting that the development of the anaerobic bacterial community may occur in sea ice under suitable conditions. In all, the results show that bacterial community in Antarctic sea ice can stay active throughout the winter period and thus possible future warming of sea ice and consequent increase in bacterial production may lead to changes in bacteria-mediated processes in the Antarctic sea-ice zone. Text Antarc* Antarctic ice algae Sea ice PubMed Central (PMC) Antarctic Austral The Antarctic The ISME Journal 11 10 2345 2355 |
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Original Article Eronen-Rasimus, Eeva Luhtanen, Anne-Mari Rintala, Janne-Markus Delille, Bruno Dieckmann, Gerhard Karkman, Antti Tison, Jean-Louis An active bacterial community linked to high chl-a concentrations in Antarctic winter-pack ice and evidence for the development of an anaerobic sea-ice bacterial community |
topic_facet |
Original Article |
description |
Antarctic sea-ice bacterial community composition and dynamics in various developmental stages were investigated during the austral winter in 2013. Thick snow cover likely insulated the ice, leading to high (<4 μg l–1) chlorophyll-a (chl-a) concentrations and consequent bacterial production. Typical sea-ice bacterial genera, for example, Octadecabacter, Polaribacter and Glaciecola, often abundant in spring and summer during the sea-ice algal bloom, predominated in the communities. The variability in bacterial community composition in the different ice types was mainly explained by the chl-a concentrations, suggesting that as in spring and summer sea ice, the sea-ice bacteria and algae may also be coupled during the Antarctic winter. Coupling between the bacterial community and sea-ice algae was further supported by significant correlations between bacterial abundance and production with chl-a. In addition, sulphate-reducing bacteria (for example, Desulforhopalus) together with odour of H2S were observed in thick, apparently anoxic ice, suggesting that the development of the anaerobic bacterial community may occur in sea ice under suitable conditions. In all, the results show that bacterial community in Antarctic sea ice can stay active throughout the winter period and thus possible future warming of sea ice and consequent increase in bacterial production may lead to changes in bacteria-mediated processes in the Antarctic sea-ice zone. |
format |
Text |
author |
Eronen-Rasimus, Eeva Luhtanen, Anne-Mari Rintala, Janne-Markus Delille, Bruno Dieckmann, Gerhard Karkman, Antti Tison, Jean-Louis |
author_facet |
Eronen-Rasimus, Eeva Luhtanen, Anne-Mari Rintala, Janne-Markus Delille, Bruno Dieckmann, Gerhard Karkman, Antti Tison, Jean-Louis |
author_sort |
Eronen-Rasimus, Eeva |
title |
An active bacterial community linked to high chl-a concentrations in Antarctic winter-pack ice and evidence for the development of an anaerobic sea-ice bacterial community |
title_short |
An active bacterial community linked to high chl-a concentrations in Antarctic winter-pack ice and evidence for the development of an anaerobic sea-ice bacterial community |
title_full |
An active bacterial community linked to high chl-a concentrations in Antarctic winter-pack ice and evidence for the development of an anaerobic sea-ice bacterial community |
title_fullStr |
An active bacterial community linked to high chl-a concentrations in Antarctic winter-pack ice and evidence for the development of an anaerobic sea-ice bacterial community |
title_full_unstemmed |
An active bacterial community linked to high chl-a concentrations in Antarctic winter-pack ice and evidence for the development of an anaerobic sea-ice bacterial community |
title_sort |
active bacterial community linked to high chl-a concentrations in antarctic winter-pack ice and evidence for the development of an anaerobic sea-ice bacterial community |
publisher |
Nature Publishing Group |
publishDate |
2017 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5607376/ http://www.ncbi.nlm.nih.gov/pubmed/28708127 https://doi.org/10.1038/ismej.2017.96 |
geographic |
Antarctic Austral The Antarctic |
geographic_facet |
Antarctic Austral The Antarctic |
genre |
Antarc* Antarctic ice algae Sea ice |
genre_facet |
Antarc* Antarctic ice algae Sea ice |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5607376/ http://www.ncbi.nlm.nih.gov/pubmed/28708127 http://dx.doi.org/10.1038/ismej.2017.96 |
op_rights |
Copyright © 2017 International Society for Microbial Ecology |
op_doi |
https://doi.org/10.1038/ismej.2017.96 |
container_title |
The ISME Journal |
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11 |
container_issue |
10 |
container_start_page |
2345 |
op_container_end_page |
2355 |
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1766146051316645888 |