Soil microbial legacies differ following drying-rewetting and freezing-thawing cycles. 2021

Annelein Meisner, and Basten L Snoek, and Joseph Nesme, and Elizabeth Dent, and Samuel Jacquiod, and Aimée T Classen, and Anders Priemé
Microbial Ecology, Department of Biology, Lund University, Ecology Building, SE-223 62, Lund, Sweden. AnneleinMeisner@gmail.com.

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.

UI MeSH Term Description Entries
D003890 Desiccation Removal of moisture from a substance (chemical, food, tissue, etc.). Dessication
D005615 Freezing Liquids transforming into solids by the removal of heat. Melting
D012987 Soil The unconsolidated mineral or organic matter on the surface of the earth that serves as a natural medium for the growth of land plants. Peat,Humus,Soils
D012988 Soil Microbiology The presence of bacteria, viruses, and fungi in the soil. This term is not restricted to pathogenic organisms. Microbiology, Soil
D057231 Climate Change Any significant change in measures of climate (such as temperature, precipitation, or wind) lasting for an extended period (decades or longer). It may result from natural factors such as changes in the sun's intensity, natural processes within the climate system such as changes in ocean circulation, or human activities. Change, Climate,Changes, Climate,Climate Changes

Related Publications

Annelein Meisner, and Basten L Snoek, and Joseph Nesme, and Elizabeth Dent, and Samuel Jacquiod, and Aimée T Classen, and Anders Priemé
March 2022, The Science of the total environment,
Annelein Meisner, and Basten L Snoek, and Joseph Nesme, and Elizabeth Dent, and Samuel Jacquiod, and Aimée T Classen, and Anders Priemé
January 2023, Heliyon,
Annelein Meisner, and Basten L Snoek, and Joseph Nesme, and Elizabeth Dent, and Samuel Jacquiod, and Aimée T Classen, and Anders Priemé
August 2010, Microbial ecology,
Annelein Meisner, and Basten L Snoek, and Joseph Nesme, and Elizabeth Dent, and Samuel Jacquiod, and Aimée T Classen, and Anders Priemé
May 2016, FEMS microbiology ecology,
Annelein Meisner, and Basten L Snoek, and Joseph Nesme, and Elizabeth Dent, and Samuel Jacquiod, and Aimée T Classen, and Anders Priemé
January 2021, The Science of the total environment,
Annelein Meisner, and Basten L Snoek, and Joseph Nesme, and Elizabeth Dent, and Samuel Jacquiod, and Aimée T Classen, and Anders Priemé
October 2007, Ying yong sheng tai xue bao = The journal of applied ecology,
Annelein Meisner, and Basten L Snoek, and Joseph Nesme, and Elizabeth Dent, and Samuel Jacquiod, and Aimée T Classen, and Anders Priemé
January 2016, Frontiers in microbiology,
Annelein Meisner, and Basten L Snoek, and Joseph Nesme, and Elizabeth Dent, and Samuel Jacquiod, and Aimée T Classen, and Anders Priemé
December 2022, Journal of environmental management,
Annelein Meisner, and Basten L Snoek, and Joseph Nesme, and Elizabeth Dent, and Samuel Jacquiod, and Aimée T Classen, and Anders Priemé
May 2022, Journal of contaminant hydrology,
Annelein Meisner, and Basten L Snoek, and Joseph Nesme, and Elizabeth Dent, and Samuel Jacquiod, and Aimée T Classen, and Anders Priemé
March 2019, Global change biology,
Copied contents to your clipboard!