气候变化领域集成服务门户(CCPortal): Diverse sediment microbiota shape methane emission temperature sensitivity in Arctic lakes

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DOI	10.1038/s41467-021-25983-9
	Diverse sediment microbiota shape methane emission temperature sensitivity in Arctic lakes
	Emerson J.B.; Varner R.K.; Wik M.; Parks D.H.; Neumann R.B.; Johnson J.E.; Singleton C.M.; Woodcroft B.J.; Tollerson R.; II; Owusu-Dommey A.; Binder M.; Freitas N.L.; Crill P.M.; Saleska S.R.; Tyson G.W.; Rich V.I.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	Northern post-glacial lakes are significant, increasing sources of atmospheric carbon through ebullition (bubbling) of microbially-produced methane (CH4) from sediments. Ebullitive CH4 flux correlates strongly with temperature, reflecting that solar radiation drives emissions. However, here we show that the slope of the temperature-CH4 flux relationship differs spatially across two post-glacial lakes in Sweden. We compared these CH4 emission patterns with sediment microbial (metagenomic and amplicon), isotopic, and geochemical data. The temperature-associated increase in CH4 emissions was greater in lake middles—where methanogens were more abundant—than edges, and sediment communities were distinct between edges and middles. Microbial abundances, including those of CH4-cycling microorganisms and syntrophs, were predictive of porewater CH4 concentrations. Results suggest that deeper lake regions, which currently emit less CH4 than shallower edges, could add substantially to CH4 emissions in a warmer Arctic and that CH4 emission predictions may be improved by accounting for spatial variations in sediment microbiota. © 2021, The Author(s).
语种	英语
scopus关键词	methane; RNA 16S; methane; emission; lacustrine deposit; methane; microorganism; porewater; Postglacial; sensitivity analysis; water temperature; amplicon; Article; carbon nitrogen ratio; comparative study; controlled study; gene sequence; hydrogenotrophic methanogenesis; lake; lake sediment; marine environment; metagenomics; microbial community; nonhuman; partial least squares regression; Planctomycetes; prediction; real time polymerase chain reaction; soil microflora; temperature sensitivity; Thermoplasmata; total organic carbon; Arctic; lake; sediment; temperature; Sweden; Microbiota; Arctic Regions; Geologic Sediments; Lakes; Methane; Temperature
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/250607
作者单位	Department of Microbiology, The Ohio State University, 496W 12th Ave, Columbus, OH 43210, United States; Department of Earth Sciences, University of New Hampshire, 56 College Road, Durham, NH 03824, United States; Earth Systems Research Center, Institute for the Study of Earth, Oceans and Space, University of New Hampshire, 8 College Road, Durham, NH 03824, United States; Department of Geological Sciences, Stockholm University, Stockholm, 106 91, Sweden; Australian Centre for Ecogenomics, School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, 4072, Australia; Civil & Environmental Engineering, University of Washington, 201 More Hall, Box 352700, Seattle, WA 98195-2700, United States; Department of Environmental Science, University of Arizona, Tucson, AZ 85721, United States; Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ 85721, United States; Centre for Microbiome Research, Queensland University of Technology, 37 Kent St, Woolloongabba, ...
推荐引用方式 GB/T 7714	Emerson J.B.,Varner R.K.,Wik M.,et al. Diverse sediment microbiota shape methane emission temperature sensitivity in Arctic lakes[J],2021,12(1).
APA	Emerson J.B..,Varner R.K..,Wik M..,Parks D.H..,Neumann R.B..,...&Rich V.I..(2021).Diverse sediment microbiota shape methane emission temperature sensitivity in Arctic lakes.Nature Communications,12(1).
MLA	Emerson J.B.,et al."Diverse sediment microbiota shape methane emission temperature sensitivity in Arctic lakes".Nature Communications 12.1(2021).