Shifts in soil microrganisms in response to warming are consistent across a range of Antarctic environments
Because of severe abiotic limitations, Antarctic soils represent simplified systems, where microorganisms are the principal drivers of nutrient cycling. This relative simplicity makes these ecosystems particularly vulnerable to perturbations, like global warming, and the Antarctic Peninsula is among...
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Online Access: | https://doi.org/10.1038/ismej.2011.124 https://nrc-publications.canada.ca/eng/view/accepted/?id=44309961-a40e-4d77-96a7-f406adfd9883 https://nrc-publications.canada.ca/eng/view/object/?id=44309961-a40e-4d77-96a7-f406adfd9883 https://nrc-publications.canada.ca/fra/voir/objet/?id=44309961-a40e-4d77-96a7-f406adfd9883 |
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ftnrccanada:oai:cisti-icist.nrc-cnrc.ca:cistinparc:19663205 2023-05-15T13:54:10+02:00 Shifts in soil microrganisms in response to warming are consistent across a range of Antarctic environments Yergeau, Etienne Bokhorst, Stef Kang, Sanghoon Zhou, Jizhong Greer, Charles W. Aerts, Rien Kioalchuk, George A. 2011-09-22 text https://doi.org/10.1038/ismej.2011.124 https://nrc-publications.canada.ca/eng/view/accepted/?id=44309961-a40e-4d77-96a7-f406adfd9883 https://nrc-publications.canada.ca/eng/view/object/?id=44309961-a40e-4d77-96a7-f406adfd9883 https://nrc-publications.canada.ca/fra/voir/objet/?id=44309961-a40e-4d77-96a7-f406adfd9883 eng eng ISME Journal, Volume: 6, Issue: 3, Publication date: 2011-09-22, Pages: 692–702 doi:10.1038/ismej.2011.124 Antarctica carbon cycle GeoChip microarrays global warming nitrogen cycle open-top chambers article 2011 ftnrccanada https://doi.org/10.1038/ismej.2011.124 2021-09-01T06:25:49Z Because of severe abiotic limitations, Antarctic soils represent simplified systems, where microorganisms are the principal drivers of nutrient cycling. This relative simplicity makes these ecosystems particularly vulnerable to perturbations, like global warming, and the Antarctic Peninsula is among the most rapidly warming regions on the planet. However, the consequences of the ongoing warming of Antarctica on microorganisms and the processes they mediate are unknown. Here, using 16S rRNA gene pyrosequencing and qPCR, we report highly consistent responses in microbial communities across disparate sub-Antarctic and Antarctic environments in response to 3 years of experimental field warming (+0.5 to 2 °C). Specifically, we found significant increases in the abundance of fungi and bacteria and in the Alphaproteobacteria-to-Acidobacteria ratio, which could result in an increase in soil respiration. Furthermore, shifts toward generalist bacterial communities following warming weakened the linkage between the bacterial taxonomic and functional richness. GeoChip microarray analyses also revealed significant warming effects on functional communities, specifically in the N-cycling microorganisms. Our results demonstrate that soil microorganisms across a range of sub-Antarctic and Antarctic environments can respond consistently and rapidly to increasing temperatures. Peer reviewed: Yes NRC publication: Yes Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica National Research Council Canada: NRC Publications Archive Antarctic The Antarctic Antarctic Peninsula The ISME Journal 6 3 692 702 |
institution |
Open Polar |
collection |
National Research Council Canada: NRC Publications Archive |
op_collection_id |
ftnrccanada |
language |
English |
topic |
Antarctica carbon cycle GeoChip microarrays global warming nitrogen cycle open-top chambers |
spellingShingle |
Antarctica carbon cycle GeoChip microarrays global warming nitrogen cycle open-top chambers Yergeau, Etienne Bokhorst, Stef Kang, Sanghoon Zhou, Jizhong Greer, Charles W. Aerts, Rien Kioalchuk, George A. Shifts in soil microrganisms in response to warming are consistent across a range of Antarctic environments |
topic_facet |
Antarctica carbon cycle GeoChip microarrays global warming nitrogen cycle open-top chambers |
description |
Because of severe abiotic limitations, Antarctic soils represent simplified systems, where microorganisms are the principal drivers of nutrient cycling. This relative simplicity makes these ecosystems particularly vulnerable to perturbations, like global warming, and the Antarctic Peninsula is among the most rapidly warming regions on the planet. However, the consequences of the ongoing warming of Antarctica on microorganisms and the processes they mediate are unknown. Here, using 16S rRNA gene pyrosequencing and qPCR, we report highly consistent responses in microbial communities across disparate sub-Antarctic and Antarctic environments in response to 3 years of experimental field warming (+0.5 to 2 °C). Specifically, we found significant increases in the abundance of fungi and bacteria and in the Alphaproteobacteria-to-Acidobacteria ratio, which could result in an increase in soil respiration. Furthermore, shifts toward generalist bacterial communities following warming weakened the linkage between the bacterial taxonomic and functional richness. GeoChip microarray analyses also revealed significant warming effects on functional communities, specifically in the N-cycling microorganisms. Our results demonstrate that soil microorganisms across a range of sub-Antarctic and Antarctic environments can respond consistently and rapidly to increasing temperatures. Peer reviewed: Yes NRC publication: Yes |
format |
Article in Journal/Newspaper |
author |
Yergeau, Etienne Bokhorst, Stef Kang, Sanghoon Zhou, Jizhong Greer, Charles W. Aerts, Rien Kioalchuk, George A. |
author_facet |
Yergeau, Etienne Bokhorst, Stef Kang, Sanghoon Zhou, Jizhong Greer, Charles W. Aerts, Rien Kioalchuk, George A. |
author_sort |
Yergeau, Etienne |
title |
Shifts in soil microrganisms in response to warming are consistent across a range of Antarctic environments |
title_short |
Shifts in soil microrganisms in response to warming are consistent across a range of Antarctic environments |
title_full |
Shifts in soil microrganisms in response to warming are consistent across a range of Antarctic environments |
title_fullStr |
Shifts in soil microrganisms in response to warming are consistent across a range of Antarctic environments |
title_full_unstemmed |
Shifts in soil microrganisms in response to warming are consistent across a range of Antarctic environments |
title_sort |
shifts in soil microrganisms in response to warming are consistent across a range of antarctic environments |
publishDate |
2011 |
url |
https://doi.org/10.1038/ismej.2011.124 https://nrc-publications.canada.ca/eng/view/accepted/?id=44309961-a40e-4d77-96a7-f406adfd9883 https://nrc-publications.canada.ca/eng/view/object/?id=44309961-a40e-4d77-96a7-f406adfd9883 https://nrc-publications.canada.ca/fra/voir/objet/?id=44309961-a40e-4d77-96a7-f406adfd9883 |
geographic |
Antarctic The Antarctic Antarctic Peninsula |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica |
op_relation |
ISME Journal, Volume: 6, Issue: 3, Publication date: 2011-09-22, Pages: 692–702 doi:10.1038/ismej.2011.124 |
op_doi |
https://doi.org/10.1038/ismej.2011.124 |
container_title |
The ISME Journal |
container_volume |
6 |
container_issue |
3 |
container_start_page |
692 |
op_container_end_page |
702 |
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