Allochthonous carbon is a major regulator to bacterial growth and community composition in subarctic freshwaters
In the subarctic region, climate warming and permafrost thaw are leading to emergence of ponds and to an increase in mobility of catchment carbon. As carbon of terrestrial origin is increasing in subarctic freshwaters the resource pool supporting their microbial communities and metabolism is changin...
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ftuppsalauniv:oai:DiVA.org:uu-304314 2023-05-15T15:07:27+02:00 Allochthonous carbon is a major regulator to bacterial growth and community composition in subarctic freshwaters Roiha, Toni Peura, Sari Cusson, Mathieu Rautio, Milla 2016 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-304314 https://doi.org/10.1038/srep34456 eng eng Uppsala universitet, Limnologi Department of Biological and Environmental Science, University of Jyväskylä, Jyväskylä, Finland;Département des sciences fondamentales, Université du Québec à Chicoutimi, Chicoutimi, Quebec, Canada. Department of Biological and Environmental Science, University of Jyväskylä, Jyväskylä, Finland Département des sciences fondamentales, Université du Québec à Chicoutimi, Chicoutimi, Quebec, Canada. Department of Biological and Environmental Science, University of Jyväskylä, Jyväskylä, Finland;Département des sciences fondamentales, Université du Québec à Chicoutimi, Chicoutimi, Quebec, Canada.;Centre for Northern Studies (CEN), Laval University, Quebec City, Quebec, Canada.;Group for Interuniversity Research in Limnology and aquatic environment (GRIL), University of Montreal, Montreal, Quebec, Canada. Scientific Reports, 2016, 6, http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-304314 doi:10.1038/srep34456 PMID 27686416 ISI:000391988600001 info:eu-repo/semantics/openAccess Ecology Ekologi Environmental Sciences Miljövetenskap Article in journal info:eu-repo/semantics/article text 2016 ftuppsalauniv https://doi.org/10.1038/srep34456 2023-02-23T22:00:30Z In the subarctic region, climate warming and permafrost thaw are leading to emergence of ponds and to an increase in mobility of catchment carbon. As carbon of terrestrial origin is increasing in subarctic freshwaters the resource pool supporting their microbial communities and metabolism is changing, with consequences to overall aquatic productivity. By sampling different subarctic water bodies for a one complete year we show how terrestrial and algal carbon compounds vary in a range of freshwaters and how differential organic carbon quality is linked to bacterial metabolism and community composition. We show that terrestrial drainage and associated nutrients supported higher bacterial growth in ponds and river mouths that were influenced by fresh terrestrial carbon than in large lakes with carbon from algal production. Bacterial diversity, however, was lower at sites influenced by terrestrial carbon inputs. Bacterial community composition was highly variable among different water bodies and especially influenced by concentrations of dissolved organic carbon (DOC), fulvic acids, proteins and nutrients. Furthermore, a distinct preference was found for terrestrial vs. algal carbon among certain bacterial tribes. The results highlight the contribution of the numerous ponds to cycling of terrestrial carbon in the changing subarctic and arctic regions. De två första författarna bidrog till arbetet i lika stor utsträckning. Article in Journal/Newspaper Arctic permafrost Subarctic Uppsala University: Publications (DiVA) Arctic Scientific Reports 6 1 |
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Open Polar |
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Uppsala University: Publications (DiVA) |
op_collection_id |
ftuppsalauniv |
language |
English |
topic |
Ecology Ekologi Environmental Sciences Miljövetenskap |
spellingShingle |
Ecology Ekologi Environmental Sciences Miljövetenskap Roiha, Toni Peura, Sari Cusson, Mathieu Rautio, Milla Allochthonous carbon is a major regulator to bacterial growth and community composition in subarctic freshwaters |
topic_facet |
Ecology Ekologi Environmental Sciences Miljövetenskap |
description |
In the subarctic region, climate warming and permafrost thaw are leading to emergence of ponds and to an increase in mobility of catchment carbon. As carbon of terrestrial origin is increasing in subarctic freshwaters the resource pool supporting their microbial communities and metabolism is changing, with consequences to overall aquatic productivity. By sampling different subarctic water bodies for a one complete year we show how terrestrial and algal carbon compounds vary in a range of freshwaters and how differential organic carbon quality is linked to bacterial metabolism and community composition. We show that terrestrial drainage and associated nutrients supported higher bacterial growth in ponds and river mouths that were influenced by fresh terrestrial carbon than in large lakes with carbon from algal production. Bacterial diversity, however, was lower at sites influenced by terrestrial carbon inputs. Bacterial community composition was highly variable among different water bodies and especially influenced by concentrations of dissolved organic carbon (DOC), fulvic acids, proteins and nutrients. Furthermore, a distinct preference was found for terrestrial vs. algal carbon among certain bacterial tribes. The results highlight the contribution of the numerous ponds to cycling of terrestrial carbon in the changing subarctic and arctic regions. De två första författarna bidrog till arbetet i lika stor utsträckning. |
format |
Article in Journal/Newspaper |
author |
Roiha, Toni Peura, Sari Cusson, Mathieu Rautio, Milla |
author_facet |
Roiha, Toni Peura, Sari Cusson, Mathieu Rautio, Milla |
author_sort |
Roiha, Toni |
title |
Allochthonous carbon is a major regulator to bacterial growth and community composition in subarctic freshwaters |
title_short |
Allochthonous carbon is a major regulator to bacterial growth and community composition in subarctic freshwaters |
title_full |
Allochthonous carbon is a major regulator to bacterial growth and community composition in subarctic freshwaters |
title_fullStr |
Allochthonous carbon is a major regulator to bacterial growth and community composition in subarctic freshwaters |
title_full_unstemmed |
Allochthonous carbon is a major regulator to bacterial growth and community composition in subarctic freshwaters |
title_sort |
allochthonous carbon is a major regulator to bacterial growth and community composition in subarctic freshwaters |
publisher |
Uppsala universitet, Limnologi |
publishDate |
2016 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-304314 https://doi.org/10.1038/srep34456 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic permafrost Subarctic |
genre_facet |
Arctic permafrost Subarctic |
op_relation |
Scientific Reports, 2016, 6, http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-304314 doi:10.1038/srep34456 PMID 27686416 ISI:000391988600001 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/srep34456 |
container_title |
Scientific Reports |
container_volume |
6 |
container_issue |
1 |
_version_ |
1766338947863019520 |