气候变化领域集成服务门户(CCPortal): Soil metabolome response to whole-ecosystem warming at the spruce and peatland responses under changing environments experiment

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DOI	10.1073/pnas.2004192118
	Soil metabolome response to whole-ecosystem warming at the spruce and peatland responses under changing environments experiment
	Wilson R.M.; Tfaily M.M.; Kolton M.; Johnston E.R.; Petro C.; Zalman C.A.; Hanson P.J.; Heyman H.M.; Kyle J.E.; Hoyt D.W.; Eder E.K.; Purvine S.O.; Kolka R.K.; Sebestyen S.D.; Griffiths N.A.; Schadt C.W.; Keller J.K.; Bridgham S.D.; Chanton J.P.; Kostka J.E.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:25
英文摘要	In this study, a suite of complementary environmental geochemical analyses, including NMR and gas chromatography-mass spectrometry (GC-MS) analyses of central metabolites, Fourier transform ion cyclotron resonance mass spectrometry (FTICR-MS) of secondary metabolites, and lipidomics, was used to investigate the influence of organic matter (OM) quality on the heterotrophic microbial mechanisms controlling peatland CO2, CH4, and CO2:CH4 porewater production ratios in response to climate warming. Our investigations leverage the Spruce and Peatland Responses under Changing Environments (SPRUCE) experiment, where air and peat warming were combined in a whole-ecosystem warming treatment. We hypothesized that warming would enhance the production of plant-derived metabolites, resulting in increased labile OM inputs to the surface peat, thereby enhancing microbial activity and greenhouse gas production. Because shallow peat is most susceptible to enhanced warming, increases in labile OM inputs to the surface, in particular, are likely to result in significant changes to CO2 and CH4 dynamics and methanogenic pathways. In support of this hypothesis, significant correlations were observed between metabolites and temperature consistent with increased availability of labile substrates, which may stimulate more rapid turnover of microbial proteins. An increase in the abundance of methanogenic genes in response to the increase in the abundance of labile substrates was accompanied by a shift toward acetoclastic and methylotrophic methanogenesis. Our results suggest that as peatland vegetation trends toward increasing vascular plant cover with warming, we can expect a concomitant shift toward increasingly methanogenic conditions and amplified climate–peatland feedbacks. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Peatland \| metabolome \| climate change \| metagenomics \| elevated methane and carbon dioxide
语种	英语
scopus关键词	carbon dioxide; methane; organic matter; acetoclastic methanogenesis; Article; climate warming; concentration (parameter); fourier transform ion cyclotron resonance mass spectrometry; greenhouse gas; lipidomics; mass fragmentography; metabolome; methylotroph; nonhuman; nuclear magnetic resonance; peatland; soil; spruce; trend study; turnover rate; vegetation
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/238511
作者单位	Department of Earth, Ocean and Atmospheric Science, Florida State University, Tallahassee, FL 32306, United States; Department of Environmental Science, Universityof Arizona, Tucson, AZ 85705, United States; Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99352, United States; School ofBiological Sciences, Georgia Institute of Technology, Atlanta, GA 30332-0230, United States; Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, United States; Schmid College of Science and Technology, Biological Sciences, Chapman University, Orange, CA 92866, United States; Biological Sciences Division, Pacific NorthwestNational Laboratory, Richland, WA 99352, United States; Northern Research Station, US Department of Agriculture Forest Service, Grand Rapids, MN 55730, United States; Institute ofEcology and Evolution, University of Oregon, Eugene, OR 97402, United States; School of Earth & Atmospheric Sciences, Georgia Institute of Technology, ...
推荐引用方式 GB/T 7714	Wilson R.M.,Tfaily M.M.,Kolton M.,et al. Soil metabolome response to whole-ecosystem warming at the spruce and peatland responses under changing environments experiment[J],2021,118(25).
APA	Wilson R.M..,Tfaily M.M..,Kolton M..,Johnston E.R..,Petro C..,...&Kostka J.E..(2021).Soil metabolome response to whole-ecosystem warming at the spruce and peatland responses under changing environments experiment.Proceedings of the National Academy of Sciences of the United States of America,118(25).
MLA	Wilson R.M.,et al."Soil metabolome response to whole-ecosystem warming at the spruce and peatland responses under changing environments experiment".Proceedings of the National Academy of Sciences of the United States of America 118.25(2021).