Soil microbial legacies differ following drying-rewetting and freezing-thawing cycles
(2021) In ISME Journal 15(4). p.1207-1221- Abstract
Climate change alters frequencies and intensities of soil drying-rewetting and freezing-thawing cycles. These fluctuations affect soil water availability, a crucial driver of soil microbial activity. While these fluctuations are leaving imprints on soil microbiome structures, the question remains if the legacy of one type of weather fluctuation (e.g., drying-rewetting) affects the community response to the other (e.g., freezing-thawing). As both phenomenons give similar water availability fluctuations, we hypothesized that freezing-thawing and drying-rewetting cycles have similar effects on the soil microbiome. We tested this hypothesis by establishing targeted microcosm experiments. We created a legacy by exposing soil samples to a... (More)
Climate change alters frequencies and intensities of soil drying-rewetting and freezing-thawing cycles. These fluctuations affect soil water availability, a crucial driver of soil microbial activity. While these fluctuations are leaving imprints on soil microbiome structures, the question remains if the legacy of one type of weather fluctuation (e.g., drying-rewetting) affects the community response to the other (e.g., freezing-thawing). As both phenomenons give similar water availability fluctuations, we hypothesized that freezing-thawing and drying-rewetting cycles have similar effects on the soil microbiome. We tested this hypothesis by establishing targeted microcosm experiments. We created a legacy by exposing soil samples to a freezing-thawing or drying-rewetting cycle (phase 1), followed by an additional drying-rewetting or freezing-thawing cycle (phase 2). We measured soil respiration and analyzed soil microbiome structures. Across experiments, larger CO2 pulses and changes in microbiome structures were observed after rewetting than thawing. Drying-rewetting legacy affected the microbiome and CO2 emissions upon the following freezing-thawing cycle. Conversely, freezing-thawing legacy did not affect the microbial response to the drying-rewetting cycle. Our results suggest that drying-rewetting cycles have stronger effects on soil microbial communities and CO2 production than freezing-thawing cycles and that this pattern is mediated by sustained changes in soil microbiome structures.
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- author
- Meisner, Annelein LU ; Snoek, Basten L. ; Nesme, Joseph ; Dent, Elizabeth ; Jacquiod, Samuel ; Classen, Aimée T. and Priemé, Anders
- organization
- publishing date
- 2021-01-06
- type
- Contribution to journal
- publication status
- published
- subject
- in
- ISME Journal
- volume
- 15
- issue
- 4
- pages
- 1207 - 1221
- publisher
- Oxford University Press
- external identifiers
-
- pmid:33408369
- scopus:85099266009
- ISSN
- 1751-7362
- DOI
- 10.1038/s41396-020-00844-3
- language
- English
- LU publication?
- yes
- id
- 60bb4b86-37d2-4ad1-b777-59f0044112a4
- date added to LUP
- 2021-01-25 13:54:17
- date last changed
- 2025-03-21 10:39:03
@article{60bb4b86-37d2-4ad1-b777-59f0044112a4,
abstract = {{<p>Climate change alters frequencies and intensities of soil drying-rewetting and freezing-thawing cycles. These fluctuations affect soil water availability, a crucial driver of soil microbial activity. While these fluctuations are leaving imprints on soil microbiome structures, the question remains if the legacy of one type of weather fluctuation (e.g., drying-rewetting) affects the community response to the other (e.g., freezing-thawing). As both phenomenons give similar water availability fluctuations, we hypothesized that freezing-thawing and drying-rewetting cycles have similar effects on the soil microbiome. We tested this hypothesis by establishing targeted microcosm experiments. We created a legacy by exposing soil samples to a freezing-thawing or drying-rewetting cycle (phase 1), followed by an additional drying-rewetting or freezing-thawing cycle (phase 2). We measured soil respiration and analyzed soil microbiome structures. Across experiments, larger CO<sub>2</sub> pulses and changes in microbiome structures were observed after rewetting than thawing. Drying-rewetting legacy affected the microbiome and CO<sub>2</sub> emissions upon the following freezing-thawing cycle. Conversely, freezing-thawing legacy did not affect the microbial response to the drying-rewetting cycle. Our results suggest that drying-rewetting cycles have stronger effects on soil microbial communities and CO<sub>2</sub> production than freezing-thawing cycles and that this pattern is mediated by sustained changes in soil microbiome structures.</p>}},
author = {{Meisner, Annelein and Snoek, Basten L. and Nesme, Joseph and Dent, Elizabeth and Jacquiod, Samuel and Classen, Aimée T. and Priemé, Anders}},
issn = {{1751-7362}},
language = {{eng}},
month = {{01}},
number = {{4}},
pages = {{1207--1221}},
publisher = {{Oxford University Press}},
series = {{ISME Journal}},
title = {{Soil microbial legacies differ following drying-rewetting and freezing-thawing cycles}},
url = {{http://dx.doi.org/10.1038/s41396-020-00844-3}},
doi = {{10.1038/s41396-020-00844-3}},
volume = {{15}},
year = {{2021}},
}