Decoupling of microbial community dynamics and functions in Arctic peat soil exposed to short term warming
Temperature is an important factor governing microbe-mediated carbon feedback from permafrost soils. The link between taxonomic and functional microbial responses to temperature change remains elusive due to the lack of studies assessing both aspects of microbial ecology. Our previous study reported...
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Online Access: | https://hdl.handle.net/10037/23660 https://doi.org/10.1111/mec.16118 |
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ftunivtroemsoe:oai:munin.uit.no:10037/23660 2023-05-15T14:25:43+02:00 Decoupling of microbial community dynamics and functions in Arctic peat soil exposed to short term warming Yang, Sizhong Liebner, Susanne Svenning, Mette Marianne Tveit, Alexander 2021-08-12 https://hdl.handle.net/10037/23660 https://doi.org/10.1111/mec.16118 eng eng Wiley Molecular Ecology info:eu-repo/grantAgreement/RCN/FRIMEDBIO/251027/Norway/Time & Energy: Fundamental microbial mechanisms that control CH4 dynamics in a warming Arctic// info:eu-repo/grantAgreement/EC/FP7/606895/Denmark/Phylogenetic exploration of medicinal plant diversity/MedPlant/ FRIDAID 1928886 doi:10.1111/mec.16118 0962-1083 1365-294X https://hdl.handle.net/10037/23660 openAccess Copyright 2021 Deutsches Geoforschungszentrum Potsdam Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2021 ftunivtroemsoe https://doi.org/10.1111/mec.16118 2022-01-12T23:56:33Z Temperature is an important factor governing microbe-mediated carbon feedback from permafrost soils. The link between taxonomic and functional microbial responses to temperature change remains elusive due to the lack of studies assessing both aspects of microbial ecology. Our previous study reported microbial metabolic and trophic shifts in response to short-term temperature increases in Arctic peat soil, and linked these shifts to higher CH 4 and CO 2 production rates (Proceedings of the National Academy of Sciences of the United States of America, 112, E2507–E2516). Here, we studied the taxonomic composition and functional potential of samples from the same experiment. We see that along a high-resolution temperature gradient (1–30°C), microbial communities change discretely, but not continuously or stochastically, in response to rising temperatures. The taxonomic variability may thus in part reflect the varied temperature responses of individual taxa and the competition between these taxa for resources. These taxonomic responses contrast the stable functional potential (metagenomic-based) across all temperatures or the previously observed metabolic or trophic shifts at key temperatures. Furthermore, with rising temperatures we observed a progressive decrease in species diversity (Shannon Index) and increased dispersion of greenhouse gas (GHG) production rates. We conclude that the taxonomic variation is decoupled from both the functional potential of the community and the previously observed temperature-dependent changes in microbial function. However, the reduced diversity at higher temperatures might help explain the higher variability in GHG production at higher temperatures. Article in Journal/Newspaper Arctic Arctic permafrost University of Tromsø: Munin Open Research Archive Arctic Molecular Ecology 30 20 5094 5104 |
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Open Polar |
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University of Tromsø: Munin Open Research Archive |
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ftunivtroemsoe |
language |
English |
description |
Temperature is an important factor governing microbe-mediated carbon feedback from permafrost soils. The link between taxonomic and functional microbial responses to temperature change remains elusive due to the lack of studies assessing both aspects of microbial ecology. Our previous study reported microbial metabolic and trophic shifts in response to short-term temperature increases in Arctic peat soil, and linked these shifts to higher CH 4 and CO 2 production rates (Proceedings of the National Academy of Sciences of the United States of America, 112, E2507–E2516). Here, we studied the taxonomic composition and functional potential of samples from the same experiment. We see that along a high-resolution temperature gradient (1–30°C), microbial communities change discretely, but not continuously or stochastically, in response to rising temperatures. The taxonomic variability may thus in part reflect the varied temperature responses of individual taxa and the competition between these taxa for resources. These taxonomic responses contrast the stable functional potential (metagenomic-based) across all temperatures or the previously observed metabolic or trophic shifts at key temperatures. Furthermore, with rising temperatures we observed a progressive decrease in species diversity (Shannon Index) and increased dispersion of greenhouse gas (GHG) production rates. We conclude that the taxonomic variation is decoupled from both the functional potential of the community and the previously observed temperature-dependent changes in microbial function. However, the reduced diversity at higher temperatures might help explain the higher variability in GHG production at higher temperatures. |
format |
Article in Journal/Newspaper |
author |
Yang, Sizhong Liebner, Susanne Svenning, Mette Marianne Tveit, Alexander |
spellingShingle |
Yang, Sizhong Liebner, Susanne Svenning, Mette Marianne Tveit, Alexander Decoupling of microbial community dynamics and functions in Arctic peat soil exposed to short term warming |
author_facet |
Yang, Sizhong Liebner, Susanne Svenning, Mette Marianne Tveit, Alexander |
author_sort |
Yang, Sizhong |
title |
Decoupling of microbial community dynamics and functions in Arctic peat soil exposed to short term warming |
title_short |
Decoupling of microbial community dynamics and functions in Arctic peat soil exposed to short term warming |
title_full |
Decoupling of microbial community dynamics and functions in Arctic peat soil exposed to short term warming |
title_fullStr |
Decoupling of microbial community dynamics and functions in Arctic peat soil exposed to short term warming |
title_full_unstemmed |
Decoupling of microbial community dynamics and functions in Arctic peat soil exposed to short term warming |
title_sort |
decoupling of microbial community dynamics and functions in arctic peat soil exposed to short term warming |
publisher |
Wiley |
publishDate |
2021 |
url |
https://hdl.handle.net/10037/23660 https://doi.org/10.1111/mec.16118 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic permafrost |
genre_facet |
Arctic Arctic permafrost |
op_relation |
Molecular Ecology info:eu-repo/grantAgreement/RCN/FRIMEDBIO/251027/Norway/Time & Energy: Fundamental microbial mechanisms that control CH4 dynamics in a warming Arctic// info:eu-repo/grantAgreement/EC/FP7/606895/Denmark/Phylogenetic exploration of medicinal plant diversity/MedPlant/ FRIDAID 1928886 doi:10.1111/mec.16118 0962-1083 1365-294X https://hdl.handle.net/10037/23660 |
op_rights |
openAccess Copyright 2021 Deutsches Geoforschungszentrum Potsdam |
op_doi |
https://doi.org/10.1111/mec.16118 |
container_title |
Molecular Ecology |
container_volume |
30 |
container_issue |
20 |
container_start_page |
5094 |
op_container_end_page |
5104 |
_version_ |
1766298182091800576 |