Terrestrial dissolved organic matter inflow drives temporal dynamics of the bacterial community of a subarctic estuary (northern Baltic Sea)
Summary Climate change is projected to cause increased inflow of terrestrial dissolved organic matter to coastal areas in northerly regions. Estuarine bacterial community will thereby receive larger loads of organic matter and inorganic nutrients available for microbial metabolism. The composition o...
Published in: | Environmental Microbiology |
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Online Access: | http://dx.doi.org/10.1111/1462-2920.15597 https://onlinelibrary.wiley.com/doi/pdf/10.1111/1462-2920.15597 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/1462-2920.15597 |
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crwiley:10.1111/1462-2920.15597 2024-10-13T14:10:59+00:00 Terrestrial dissolved organic matter inflow drives temporal dynamics of the bacterial community of a subarctic estuary (northern Baltic Sea) Figueroa, Daniela Capo, Eric Lindh, Markus V. Rowe, Owen F. Paczkowska, Joanna Pinhassi, Jarone Andersson, Agneta Svenska Forskningsrådet Formas 2021 http://dx.doi.org/10.1111/1462-2920.15597 https://onlinelibrary.wiley.com/doi/pdf/10.1111/1462-2920.15597 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/1462-2920.15597 en eng Wiley http://creativecommons.org/licenses/by-nc/4.0/ Environmental Microbiology volume 23, issue 8, page 4200-4213 ISSN 1462-2912 1462-2920 journal-article 2021 crwiley https://doi.org/10.1111/1462-2920.15597 2024-09-17T04:50:35Z Summary Climate change is projected to cause increased inflow of terrestrial dissolved organic matter to coastal areas in northerly regions. Estuarine bacterial community will thereby receive larger loads of organic matter and inorganic nutrients available for microbial metabolism. The composition of the bacterial community and its ecological functions may thus be affected. We studied the responses of bacterial community to inflow of terrestrial dissolved organic matter in a subarctic estuary in the northern Baltic Sea, using a 16S rRNA gene metabarcoding approach. Betaproteobacteria dominated during the spring river flush, constituting ~ 60% of the bacterial community. Bacterial diversity increased as the runoff decreased during summer, when Verrucomicrobia, Betaproteobacteria, Bacteroidetes, Gammaproteobacteria and Planctomycetes dominated the community. Network analysis revealed that a larger number of associations between bacterial populations occurred during the summer than in spring. Betaproteobacteria and Bacteroidetes populations appeared to display similar correlations to environmental factors. In spring, freshly discharged organic matter favoured specialists, while in summer a mix of autochthonous and terrestrial organic matter promoted the development of generalists. Our study indicates that increased inflows of terrestrial organic matter‐loaded freshwater to coastal areas would promote specialist bacteria, which in turn might enhance the transformation of terrestrial organic matter in estuarine environments. Article in Journal/Newspaper Subarctic Wiley Online Library Spring River ENVELOPE(-138.627,-138.627,69.281,69.281) Environmental Microbiology |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Summary Climate change is projected to cause increased inflow of terrestrial dissolved organic matter to coastal areas in northerly regions. Estuarine bacterial community will thereby receive larger loads of organic matter and inorganic nutrients available for microbial metabolism. The composition of the bacterial community and its ecological functions may thus be affected. We studied the responses of bacterial community to inflow of terrestrial dissolved organic matter in a subarctic estuary in the northern Baltic Sea, using a 16S rRNA gene metabarcoding approach. Betaproteobacteria dominated during the spring river flush, constituting ~ 60% of the bacterial community. Bacterial diversity increased as the runoff decreased during summer, when Verrucomicrobia, Betaproteobacteria, Bacteroidetes, Gammaproteobacteria and Planctomycetes dominated the community. Network analysis revealed that a larger number of associations between bacterial populations occurred during the summer than in spring. Betaproteobacteria and Bacteroidetes populations appeared to display similar correlations to environmental factors. In spring, freshly discharged organic matter favoured specialists, while in summer a mix of autochthonous and terrestrial organic matter promoted the development of generalists. Our study indicates that increased inflows of terrestrial organic matter‐loaded freshwater to coastal areas would promote specialist bacteria, which in turn might enhance the transformation of terrestrial organic matter in estuarine environments. |
author2 |
Svenska Forskningsrådet Formas |
format |
Article in Journal/Newspaper |
author |
Figueroa, Daniela Capo, Eric Lindh, Markus V. Rowe, Owen F. Paczkowska, Joanna Pinhassi, Jarone Andersson, Agneta |
spellingShingle |
Figueroa, Daniela Capo, Eric Lindh, Markus V. Rowe, Owen F. Paczkowska, Joanna Pinhassi, Jarone Andersson, Agneta Terrestrial dissolved organic matter inflow drives temporal dynamics of the bacterial community of a subarctic estuary (northern Baltic Sea) |
author_facet |
Figueroa, Daniela Capo, Eric Lindh, Markus V. Rowe, Owen F. Paczkowska, Joanna Pinhassi, Jarone Andersson, Agneta |
author_sort |
Figueroa, Daniela |
title |
Terrestrial dissolved organic matter inflow drives temporal dynamics of the bacterial community of a subarctic estuary (northern Baltic Sea) |
title_short |
Terrestrial dissolved organic matter inflow drives temporal dynamics of the bacterial community of a subarctic estuary (northern Baltic Sea) |
title_full |
Terrestrial dissolved organic matter inflow drives temporal dynamics of the bacterial community of a subarctic estuary (northern Baltic Sea) |
title_fullStr |
Terrestrial dissolved organic matter inflow drives temporal dynamics of the bacterial community of a subarctic estuary (northern Baltic Sea) |
title_full_unstemmed |
Terrestrial dissolved organic matter inflow drives temporal dynamics of the bacterial community of a subarctic estuary (northern Baltic Sea) |
title_sort |
terrestrial dissolved organic matter inflow drives temporal dynamics of the bacterial community of a subarctic estuary (northern baltic sea) |
publisher |
Wiley |
publishDate |
2021 |
url |
http://dx.doi.org/10.1111/1462-2920.15597 https://onlinelibrary.wiley.com/doi/pdf/10.1111/1462-2920.15597 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/1462-2920.15597 |
long_lat |
ENVELOPE(-138.627,-138.627,69.281,69.281) |
geographic |
Spring River |
geographic_facet |
Spring River |
genre |
Subarctic |
genre_facet |
Subarctic |
op_source |
Environmental Microbiology volume 23, issue 8, page 4200-4213 ISSN 1462-2912 1462-2920 |
op_rights |
http://creativecommons.org/licenses/by-nc/4.0/ |
op_doi |
https://doi.org/10.1111/1462-2920.15597 |
container_title |
Environmental Microbiology |
_version_ |
1812818573501923328 |