Compositional Stability of the Bacterial Community in a Climate-Sensitive Sub-Arctic Peatland
The climate sensitivity of microbe-mediated soil processes such as carbon and nitrogen cycling offers an interesting case for evaluating the corresponding sensitivity of microbial community composition to environmental change. Better understanding of the degree of linkage between functional and comp...
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ftpubmed:oai:pubmedcentral.nih.gov:5339224 2023-05-15T14:58:33+02:00 Compositional Stability of the Bacterial Community in a Climate-Sensitive Sub-Arctic Peatland Weedon, James T. Kowalchuk, George A. Aerts, Rien Freriks, Stef Röling, Wilfred F. M. van Bodegom, Peter M. 2017-03-07 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5339224/ https://doi.org/10.3389/fmicb.2017.00317 en eng Frontiers Media S.A. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5339224/ http://dx.doi.org/10.3389/fmicb.2017.00317 Copyright © 2017 Weedon, Kowalchuk, Aerts, Freriks, Röling and van Bodegom. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. CC-BY Microbiology Text 2017 ftpubmed https://doi.org/10.3389/fmicb.2017.00317 2017-03-26T01:05:16Z The climate sensitivity of microbe-mediated soil processes such as carbon and nitrogen cycling offers an interesting case for evaluating the corresponding sensitivity of microbial community composition to environmental change. Better understanding of the degree of linkage between functional and compositional stability would contribute to ongoing efforts to build mechanistic models aiming at predicting rates of microbe-mediated processes. We used an amplicon sequencing approach to test if previously observed large effects of experimental soil warming on C and N cycle fluxes (50–100% increases) in a sub-arctic Sphagnum peatland were reflected in changes in the composition of the soil bacterial community. We found that treatments that previously induced changes to fluxes did not associate with changes in the phylogenetic composition of the soil bacterial community. For both DNA- and RNA-based analyses, variation in bacterial communities could be explained by the hierarchy: spatial variation (12–15% of variance explained) > temporal variation (7–11%) > climate treatment (4–9%). We conclude that the bacterial community in this environment is stable under changing conditions, despite the previously observed sensitivity of process rates—evidence that microbe-mediated soil processes can alter without concomitant changes in bacterial communities. We propose that progress in linking soil microbial communities to ecosystem processes can be advanced by further investigating the relative importance of community composition effects versus physico-chemical factors in controlling biogeochemical process rates in different contexts. Text Arctic PubMed Central (PMC) Arctic Frontiers in Microbiology 8 |
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English |
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Microbiology |
spellingShingle |
Microbiology Weedon, James T. Kowalchuk, George A. Aerts, Rien Freriks, Stef Röling, Wilfred F. M. van Bodegom, Peter M. Compositional Stability of the Bacterial Community in a Climate-Sensitive Sub-Arctic Peatland |
topic_facet |
Microbiology |
description |
The climate sensitivity of microbe-mediated soil processes such as carbon and nitrogen cycling offers an interesting case for evaluating the corresponding sensitivity of microbial community composition to environmental change. Better understanding of the degree of linkage between functional and compositional stability would contribute to ongoing efforts to build mechanistic models aiming at predicting rates of microbe-mediated processes. We used an amplicon sequencing approach to test if previously observed large effects of experimental soil warming on C and N cycle fluxes (50–100% increases) in a sub-arctic Sphagnum peatland were reflected in changes in the composition of the soil bacterial community. We found that treatments that previously induced changes to fluxes did not associate with changes in the phylogenetic composition of the soil bacterial community. For both DNA- and RNA-based analyses, variation in bacterial communities could be explained by the hierarchy: spatial variation (12–15% of variance explained) > temporal variation (7–11%) > climate treatment (4–9%). We conclude that the bacterial community in this environment is stable under changing conditions, despite the previously observed sensitivity of process rates—evidence that microbe-mediated soil processes can alter without concomitant changes in bacterial communities. We propose that progress in linking soil microbial communities to ecosystem processes can be advanced by further investigating the relative importance of community composition effects versus physico-chemical factors in controlling biogeochemical process rates in different contexts. |
format |
Text |
author |
Weedon, James T. Kowalchuk, George A. Aerts, Rien Freriks, Stef Röling, Wilfred F. M. van Bodegom, Peter M. |
author_facet |
Weedon, James T. Kowalchuk, George A. Aerts, Rien Freriks, Stef Röling, Wilfred F. M. van Bodegom, Peter M. |
author_sort |
Weedon, James T. |
title |
Compositional Stability of the Bacterial Community in a Climate-Sensitive Sub-Arctic Peatland |
title_short |
Compositional Stability of the Bacterial Community in a Climate-Sensitive Sub-Arctic Peatland |
title_full |
Compositional Stability of the Bacterial Community in a Climate-Sensitive Sub-Arctic Peatland |
title_fullStr |
Compositional Stability of the Bacterial Community in a Climate-Sensitive Sub-Arctic Peatland |
title_full_unstemmed |
Compositional Stability of the Bacterial Community in a Climate-Sensitive Sub-Arctic Peatland |
title_sort |
compositional stability of the bacterial community in a climate-sensitive sub-arctic peatland |
publisher |
Frontiers Media S.A. |
publishDate |
2017 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5339224/ https://doi.org/10.3389/fmicb.2017.00317 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5339224/ http://dx.doi.org/10.3389/fmicb.2017.00317 |
op_rights |
Copyright © 2017 Weedon, Kowalchuk, Aerts, Freriks, Röling and van Bodegom. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmicb.2017.00317 |
container_title |
Frontiers in Microbiology |
container_volume |
8 |
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1766330693999132672 |