globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.13557
论文题名:
Identifying the microbial taxa that consistently respond to soil warming across time and space
作者: Oliverio A.M.; Bradford M.A.; Fierer N.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2017
卷: 23, 期:5
起始页码: 2117
结束页码: 2129
语种: 英语
英文关键词: bacteria ; microbial bioindicators ; soil ; temperature ; warming
Scopus关键词: Archaea ; Bacteria (microorganisms)
英文摘要: Soil microbial communities are the key drivers of many terrestrial biogeochemical processes. However, we currently lack a generalizable understanding of how these soil communities will change in response to predicted increases in global temperatures and which microbial lineages will be most impacted. Here, using high-throughput marker gene sequencing of soils collected from 18 sites throughout North America included in a 100-day laboratory incubation experiment, we identified a core group of abundant and nearly ubiquitous soil microbes that shift in relative abundance with elevated soil temperatures. We then validated and narrowed our list of temperature-sensitive microbes by comparing the results from this laboratory experiment with data compiled from 210 soils representing multiple, independent global field studies sampled across spatial gradients with a wide range in mean annual temperatures. Our results reveal predictable and consistent responses to temperature for a core group of 189 ubiquitous soil bacterial and archaeal taxa, with these taxa exhibiting similar temperature responses across a broad range of soil types. These microbial ‘bioindicators’ are useful for understanding how soil microbial communities respond to warming and to discriminate between the direct and indirect effects of soil warming on microbial communities. Those taxa that were found to be sensitive to temperature represented a wide range of lineages and the direction of the temperature responses were not predictable from phylogeny alone, indicating that temperature responses are difficult to predict from simply describing soil microbial communities at broad taxonomic or phylogenetic levels of resolution. Together, these results lay the foundation for a more predictive understanding of how soil microbial communities respond to soil warming and how warming may ultimately lead to changes in soil biogeochemical processes. © 2016 John Wiley & Sons Ltd
资助项目: We thank the site managers of the 11 LTER sites for soil collection ; Wenke Smets, Jessica Henley, and Tess Brewer for assistance with sample processing and laboratory work ; and Albert Barberán for comments on the methods. The project was funded by the US National Science Foundation (NSF) through an NSF Graduate Research Fellowship to AMO and grants to MAB and NF (DEB-1021222, DEB-1021098, DEB-0953331).
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60967
Appears in Collections:影响、适应和脆弱性

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作者单位: Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO, United States; Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, United States; School of Forestry and Environmental Studies, Yale University, New Haven, CT, United States

Recommended Citation:
Oliverio A.M.,Bradford M.A.,Fierer N.. Identifying the microbial taxa that consistently respond to soil warming across time and space[J]. Global Change Biology,2017-01-01,23(5)
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