Environmental legacy contributes to the resilience of methane consumption in a laboratory microcosm system
文献类型： 外文期刊
作者： Krause, Sascha M. B. 1 ; Meima-Franke, Marion 2 ; Veraart, Annelies J. 2 ; Ren, Gaidi 4 ; Ho, Adrian 2 ; Bodelier, 1 ;
作者机构： 1.Univ Washington, Dept Microbiol, Seattle, WA 98195 USA
2.Netherlands Inst Ecol NIOO KNAW, Dept Microbial Ecol, Wageningen, Netherlands
3.Radboud Univ Nijmegen, Inst Water & Wetland Res, Dept Aquat Ecol & Environm Biol, Nijmegen, Netherlands
4.Jiangsu Acad Agr Sci, Inst Agr Sci & Environm, Nanjing, Jiangsu, Peoples R China
5.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing, Jiangsu, Peoples R China
6.Leibniz Univ Hannover, Inst Microbiol, Herrenhauserstr 2, Hannover, Germany
期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.379； 五年影响因子：5.133 ）
ISSN： 2045-2322
年卷期： 2018 年 8 卷
页码：
收录情况： SCI
摘要： The increase of extreme drought and precipitation events due to climate change will alter microbial processes. Perturbation experiments demonstrated that microbes are sensitive to environmental alterations. However, only little is known on the legacy effects in microbial systems. Here, we designed a laboratory microcosm experiment using aerobic methane-consuming communities as a model system to test basic principles of microbial resilience and the role of changes in biomass and the presence of non-methanotrophic microbes in this process. We focused on enrichments from soil, sediment, and water reflecting communities with different legacy with respect to exposure to drought. Recovery rates, a recently proposed early warning indicator of a critical transition, were utilized as a measure to detect resilience loss of methane consumption during a series of dry/wet cycle perturbations. We observed a slowed recovery of enrichments originating from water samples, which suggests that the community's legacy with a perturbation is a contributing factor for the resilience of microbial functioning.
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