A winter-to-summer transition of bacterial and archaeal communities in Arctic sea ice
The Arctic is warming 2–3 times faster than the global average, leading to a decrease in Arctic sea ice extent, thickness, and associated changes in sea ice structure. These changes impact sea ice habitat properties and the ice-associated ecosystems. Sea-ice algal blooms provide various algal-derive...
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Language: | English |
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Online Access: | https://hdl.handle.net/11250/3020534 https://doi.org/10.3390/microorganisms10081618 |
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ftimr:oai:imr.brage.unit.no:11250/3020534 2023-05-15T14:48:10+02:00 A winter-to-summer transition of bacterial and archaeal communities in Arctic sea ice Thiele, Stefan Storesund, Julia Endresen Férnandez-Méndez, Mar Assmy, Philipp Øvreås, Lise 2022 application/pdf https://hdl.handle.net/11250/3020534 https://doi.org/10.3390/microorganisms10081618 eng eng Norges forskningsråd: 256162 Norges forskningsråd: 244646 Microorganisms. 2022, 10 (8), . urn:issn:2076-2607 https://hdl.handle.net/11250/3020534 https://doi.org/10.3390/microorganisms10081618 cristin:2052467 19 10 Microorganisms 8 Peer reviewed Journal article 2022 ftimr https://doi.org/10.3390/microorganisms10081618 2022-09-28T22:42:28Z The Arctic is warming 2–3 times faster than the global average, leading to a decrease in Arctic sea ice extent, thickness, and associated changes in sea ice structure. These changes impact sea ice habitat properties and the ice-associated ecosystems. Sea-ice algal blooms provide various algal-derived carbon sources for the bacterial and archaeal communities within the sea ice. Here, we detail the transition of these communities from winter through spring to early summer during the Norwegian young sea ICE (N-ICE2015) expedition. The winter community was dominated by the archaeon Candidatus Nitrosopumilus and bacteria belonging to the Gammaproteobacteria (Colwellia, Kangiellaceae, and Nitrinocolaceae), indicating that nitrogen-based metabolisms, particularly ammonia oxidation to nitrite by Cand. Nitrosopumilus was prevalent. At the onset of the vernal sea-ice algae bloom, the community shifted to the dominance of Gammaproteobacteria (Kangiellaceae, Nitrinocolaceae) and Bacteroidia (Polaribacter), while Cand. Nitrosopumilus almost disappeared. The bioinformatically predicted carbohydrate-active enzymes increased during spring and summer, indicating that sea-ice algae-derived carbon sources are a strong driver of bacterial and archaeal community succession in Arctic sea ice during the change of seasons. This implies a succession from a nitrogen metabolism-based winter community to an algal-derived carbon metabolism-based spring/ summer community. publishedVersion Article in Journal/Newspaper Arctic ice algae Sea ice Institute for Marine Research: Brage IMR Arctic Microorganisms 10 8 1618 |
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Open Polar |
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Institute for Marine Research: Brage IMR |
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ftimr |
language |
English |
description |
The Arctic is warming 2–3 times faster than the global average, leading to a decrease in Arctic sea ice extent, thickness, and associated changes in sea ice structure. These changes impact sea ice habitat properties and the ice-associated ecosystems. Sea-ice algal blooms provide various algal-derived carbon sources for the bacterial and archaeal communities within the sea ice. Here, we detail the transition of these communities from winter through spring to early summer during the Norwegian young sea ICE (N-ICE2015) expedition. The winter community was dominated by the archaeon Candidatus Nitrosopumilus and bacteria belonging to the Gammaproteobacteria (Colwellia, Kangiellaceae, and Nitrinocolaceae), indicating that nitrogen-based metabolisms, particularly ammonia oxidation to nitrite by Cand. Nitrosopumilus was prevalent. At the onset of the vernal sea-ice algae bloom, the community shifted to the dominance of Gammaproteobacteria (Kangiellaceae, Nitrinocolaceae) and Bacteroidia (Polaribacter), while Cand. Nitrosopumilus almost disappeared. The bioinformatically predicted carbohydrate-active enzymes increased during spring and summer, indicating that sea-ice algae-derived carbon sources are a strong driver of bacterial and archaeal community succession in Arctic sea ice during the change of seasons. This implies a succession from a nitrogen metabolism-based winter community to an algal-derived carbon metabolism-based spring/ summer community. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Thiele, Stefan Storesund, Julia Endresen Férnandez-Méndez, Mar Assmy, Philipp Øvreås, Lise |
spellingShingle |
Thiele, Stefan Storesund, Julia Endresen Férnandez-Méndez, Mar Assmy, Philipp Øvreås, Lise A winter-to-summer transition of bacterial and archaeal communities in Arctic sea ice |
author_facet |
Thiele, Stefan Storesund, Julia Endresen Férnandez-Méndez, Mar Assmy, Philipp Øvreås, Lise |
author_sort |
Thiele, Stefan |
title |
A winter-to-summer transition of bacterial and archaeal communities in Arctic sea ice |
title_short |
A winter-to-summer transition of bacterial and archaeal communities in Arctic sea ice |
title_full |
A winter-to-summer transition of bacterial and archaeal communities in Arctic sea ice |
title_fullStr |
A winter-to-summer transition of bacterial and archaeal communities in Arctic sea ice |
title_full_unstemmed |
A winter-to-summer transition of bacterial and archaeal communities in Arctic sea ice |
title_sort |
winter-to-summer transition of bacterial and archaeal communities in arctic sea ice |
publishDate |
2022 |
url |
https://hdl.handle.net/11250/3020534 https://doi.org/10.3390/microorganisms10081618 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic ice algae Sea ice |
genre_facet |
Arctic ice algae Sea ice |
op_source |
19 10 Microorganisms 8 |
op_relation |
Norges forskningsråd: 256162 Norges forskningsråd: 244646 Microorganisms. 2022, 10 (8), . urn:issn:2076-2607 https://hdl.handle.net/11250/3020534 https://doi.org/10.3390/microorganisms10081618 cristin:2052467 |
op_doi |
https://doi.org/10.3390/microorganisms10081618 |
container_title |
Microorganisms |
container_volume |
10 |
container_issue |
8 |
container_start_page |
1618 |
_version_ |
1766319263540314112 |