Compositional Stability of the Bacterial Community in a Climate-Sensitive Sub-Arctic Peatland. Weedon, J. T., Kowalchuk, G. A., Aerts, R., Freriks, S., Röling, W. F. M., & van Bodegom, P. M. Frontiers in Microbiology, 8:00317, March, 2017. Publisher: Frontiers![Compositional Stability of the Bacterial Community in a Climate-Sensitive Sub-Arctic Peatland [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex \textlessp\textgreaterThe 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 \textlessitalic\textgreaterSphagnum\textless/italic\textgreater 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.\textless/p\textgreater
@article{weedon_compositional_2017,
title = {Compositional {Stability} of the {Bacterial} {Community} in a {Climate}-{Sensitive} {Sub}-{Arctic} {Peatland}},
volume = {8},
issn = {1664-302X},
url = {https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2017.00317/full},
doi = {10.3389/fmicb.2017.00317},
abstract = {{\textless}p{\textgreater}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 {\textless}italic{\textgreater}Sphagnum{\textless}/italic{\textgreater} 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.{\textless}/p{\textgreater}},
language = {English},
urldate = {2024-03-27},
journal = {Frontiers in Microbiology},
author = {Weedon, James T. and Kowalchuk, George A. and Aerts, Rien and Freriks, Stef and Röling, Wilfred F. M. and van Bodegom, Peter M.},
month = mar,
year = {2017},
note = {Publisher: Frontiers},
keywords = {\#nosource, 16S, Bacteria, Carbon, Climate Change, DNA, Nitrogen, Peatlands, RNA, Seasonality},
pages = {00317},
}
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