Rhizosphere microbial community structure differs between constant subzero and freeze-thaw temperature regimes in a subarctic soil
Abstract In the Arctic and subarctic, climate change is causing reduced snowpack extent and earlier snowmelt. Shallower snowpack decreases the thermal insulation of underlying soil and results in more freeze-thaw conditions reflective of dynamic air temperatures. The aim of this study was to determi...
Published in: | FEMS Microbiology Ecology |
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Oxford University Press (OUP)
2023
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Online Access: | http://dx.doi.org/10.1093/femsec/fiad147 https://academic.oup.com/femsec/advance-article-pdf/doi/10.1093/femsec/fiad147/53403252/fiad147.pdf https://academic.oup.com/femsec/article-pdf/99/12/fiad147/54353982/fiad147.pdf |
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croxfordunivpr:10.1093/femsec/fiad147 2024-04-28T08:10:44+00:00 Rhizosphere microbial community structure differs between constant subzero and freeze-thaw temperature regimes in a subarctic soil Doherty, Stacey J Busby, Ryan R Baker, Christopher C M Barbato, Robyn A United States Army 2023 http://dx.doi.org/10.1093/femsec/fiad147 https://academic.oup.com/femsec/advance-article-pdf/doi/10.1093/femsec/fiad147/53403252/fiad147.pdf https://academic.oup.com/femsec/article-pdf/99/12/fiad147/54353982/fiad147.pdf en eng Oxford University Press (OUP) FEMS Microbiology Ecology volume 99, issue 12 ISSN 1574-6941 Applied Microbiology and Biotechnology Ecology Microbiology journal-article 2023 croxfordunivpr https://doi.org/10.1093/femsec/fiad147 2024-04-02T08:03:24Z Abstract In the Arctic and subarctic, climate change is causing reduced snowpack extent and earlier snowmelt. Shallower snowpack decreases the thermal insulation of underlying soil and results in more freeze-thaw conditions reflective of dynamic air temperatures. The aim of this study was to determine the effect of alternative temperature regimes on overall microbial community structure and rhizosphere recruitment across representatives of three subarctic plant functional groups. We hypothesized that temperature regime would influence rhizosphere community structure more than plant type. Planted microcosms were established using a tree, forb, grass, or no plant control and subjected to either freeze-thaw cycling or static subzero temperatures. Our results showed rhizosphere communities exhibited reduced diversity compared to bulk soils, and were influenced by temperature conditions and to a lesser extent plant type. We found that plants have a core microbiome that is persistent under different winter temperature scenarios but also have temperature regime-specific rhizosphere microbes. Freeze-thaw cycling resulted in greater community shifts from the pre-incubation soils when compared to constant subzero temperature. This finding suggests that wintertime snowpack conditions may be a significant factor for plant-microbe interactions upon spring thaw. Article in Journal/Newspaper Arctic Climate change Subarctic Oxford University Press FEMS Microbiology Ecology |
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Open Polar |
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Oxford University Press |
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croxfordunivpr |
language |
English |
topic |
Applied Microbiology and Biotechnology Ecology Microbiology |
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Applied Microbiology and Biotechnology Ecology Microbiology Doherty, Stacey J Busby, Ryan R Baker, Christopher C M Barbato, Robyn A Rhizosphere microbial community structure differs between constant subzero and freeze-thaw temperature regimes in a subarctic soil |
topic_facet |
Applied Microbiology and Biotechnology Ecology Microbiology |
description |
Abstract In the Arctic and subarctic, climate change is causing reduced snowpack extent and earlier snowmelt. Shallower snowpack decreases the thermal insulation of underlying soil and results in more freeze-thaw conditions reflective of dynamic air temperatures. The aim of this study was to determine the effect of alternative temperature regimes on overall microbial community structure and rhizosphere recruitment across representatives of three subarctic plant functional groups. We hypothesized that temperature regime would influence rhizosphere community structure more than plant type. Planted microcosms were established using a tree, forb, grass, or no plant control and subjected to either freeze-thaw cycling or static subzero temperatures. Our results showed rhizosphere communities exhibited reduced diversity compared to bulk soils, and were influenced by temperature conditions and to a lesser extent plant type. We found that plants have a core microbiome that is persistent under different winter temperature scenarios but also have temperature regime-specific rhizosphere microbes. Freeze-thaw cycling resulted in greater community shifts from the pre-incubation soils when compared to constant subzero temperature. This finding suggests that wintertime snowpack conditions may be a significant factor for plant-microbe interactions upon spring thaw. |
author2 |
United States Army |
format |
Article in Journal/Newspaper |
author |
Doherty, Stacey J Busby, Ryan R Baker, Christopher C M Barbato, Robyn A |
author_facet |
Doherty, Stacey J Busby, Ryan R Baker, Christopher C M Barbato, Robyn A |
author_sort |
Doherty, Stacey J |
title |
Rhizosphere microbial community structure differs between constant subzero and freeze-thaw temperature regimes in a subarctic soil |
title_short |
Rhizosphere microbial community structure differs between constant subzero and freeze-thaw temperature regimes in a subarctic soil |
title_full |
Rhizosphere microbial community structure differs between constant subzero and freeze-thaw temperature regimes in a subarctic soil |
title_fullStr |
Rhizosphere microbial community structure differs between constant subzero and freeze-thaw temperature regimes in a subarctic soil |
title_full_unstemmed |
Rhizosphere microbial community structure differs between constant subzero and freeze-thaw temperature regimes in a subarctic soil |
title_sort |
rhizosphere microbial community structure differs between constant subzero and freeze-thaw temperature regimes in a subarctic soil |
publisher |
Oxford University Press (OUP) |
publishDate |
2023 |
url |
http://dx.doi.org/10.1093/femsec/fiad147 https://academic.oup.com/femsec/advance-article-pdf/doi/10.1093/femsec/fiad147/53403252/fiad147.pdf https://academic.oup.com/femsec/article-pdf/99/12/fiad147/54353982/fiad147.pdf |
genre |
Arctic Climate change Subarctic |
genre_facet |
Arctic Climate change Subarctic |
op_source |
FEMS Microbiology Ecology volume 99, issue 12 ISSN 1574-6941 |
op_doi |
https://doi.org/10.1093/femsec/fiad147 |
container_title |
FEMS Microbiology Ecology |
_version_ |
1797578473714221056 |