气候变化领域集成服务门户(CCPortal): Decoupling of microbial community dynamics and functions in Arctic peat soil exposed to short term warming

CCPortal

DOI	10.1111/mec.16118
	Decoupling of microbial community dynamics and functions in Arctic peat soil exposed to short term warming
	Yang, Sizhong; Liebner, Susanne; Svenning, Mette Marianne; Tveit, Alexander Tosdal
通讯作者	Yang, SZ (通讯作者)，GFZ German Res Ctr Geosci, Sect Geomicrobiol, D-14473 Potsdam, Germany.
发表日期	2021
ISSN	0962-1083
EISSN	1365-294X
起始页码	5094
结束页码	5104
卷号	30 期号:20
英文摘要	Temperature is an important factor governing microbe-mediated carbon feedback from permafrost soils. The link between taxonomic and functional microbial responses to temperature change remains elusive due to the lack of studies assessing both aspects of microbial ecology. Our previous study reported microbial metabolic and trophic shifts in response to short-term temperature increases in Arctic peat soil, and linked these shifts to higher CH4 and CO2 production rates (Proceedings of the National Academy of Sciences of the United States of America, 112, E2507-E2516). Here, we studied the taxonomic composition and functional potential of samples from the same experiment. We see that along a high-resolution temperature gradient (1-30 degrees C), microbial communities change discretely, but not continuously or stochastically, in response to rising temperatures. The taxonomic variability may thus in part reflect the varied temperature responses of individual taxa and the competition between these taxa for resources. These taxonomic responses contrast the stable functional potential (metagenomic-based) across all temperatures or the previously observed metabolic or trophic shifts at key temperatures. Furthermore, with rising temperatures we observed a progressive decrease in species diversity (Shannon Index) and increased dispersion of greenhouse gas (GHG) production rates. We conclude that the taxonomic variation is decoupled from both the functional potential of the community and the previously observed temperature-dependent changes in microbial function. However, the reduced diversity at higher temperatures might help explain the higher variability in GHG production at higher temperatures.
关键词	METHANOGENIC COMMUNITIES TEMPERATURE SENSITIVITY ARCHAEAL COMMUNITIES PERMAFROST CARBON CLIMATE-CHANGE DATABASE BACTERIAL
英文关键词	microbial community; permafrost; species diversity; stochastic; temperature gradient
语种	英语
WOS研究方向	Biochemistry & Molecular Biology ; Environmental Sciences & Ecology ; Evolutionary Biology
WOS类目	Biochemistry & Molecular Biology ; Ecology ; Evolutionary Biology
WOS记录号	WOS:000687608800001
来源期刊	MOLECULAR ECOLOGY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254348
作者单位	[Yang, Sizhong; Liebner, Susanne] GFZ German Res Ctr Geosci, Sect Geomicrobiol, D-14473 Potsdam, Germany; [Yang, Sizhong] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Cyrosphere Res Stn Qinghai Tibet Plateau, Lanzhou, Peoples R China; [Liebner, Susanne] Univ Potsdam, Inst Biochem & Biol, Potsdam, Germany; [Svenning, Mette Marianne; Tveit, Alexander Tosdal] UiT Arctic Univ Norway, Dept Arctic & Marine Biol, Tromso, Norway
推荐引用方式 GB/T 7714	Yang, Sizhong,Liebner, Susanne,Svenning, Mette Marianne,et al. Decoupling of microbial community dynamics and functions in Arctic peat soil exposed to short term warming[J]. 中国科学院西北生态环境资源研究院,2021,30(20).
APA	Yang, Sizhong,Liebner, Susanne,Svenning, Mette Marianne,&Tveit, Alexander Tosdal.(2021).Decoupling of microbial community dynamics and functions in Arctic peat soil exposed to short term warming.MOLECULAR ECOLOGY,30(20).
MLA	Yang, Sizhong,et al."Decoupling of microbial community dynamics and functions in Arctic peat soil exposed to short term warming".MOLECULAR ECOLOGY 30.20(2021).