Microbial functional genes commonly respond to elevated carbon dioxide

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 中国科学院环境生物技术重点实验室

	Microbial functional genes commonly respond to elevated carbon dioxide
	He, Zhili; Deng, Ye; Xu, Meiying; Li, Juan; Liang, Junyi; Xiong, Jinbo; Yu, Hao; Wu, Bo; Wu, Liyou; Xue, Kai
刊名	ENVIRONMENT INTERNATIONAL
	2020-11
卷号	144 页码:1-3
关键词	Soil microbial community Functional gene Common/specific response Elevated carbon dioxide Global change
ISSN号	0160-4120
英文摘要	Atmospheric CO2 concentration is increasing, largely due to anthropogenic activities. Previous studies of individual free-air CO2 enrichment (FACE) experimental sites have shown significant impacts of elevated CO2 (eCO(2)) on soil microbial communities; however, no common microbial response patterns have yet emerged, challenging our ability to predict ecosystem functioning and sustainability in the future eCO(2) environment. Here we analyzed 66 soil microbial communities from five FACE sites, and showed common microbial response patterns to eCO(2), especially for key functional genes involved in carbon and nitrogen fixation (e.g., pcc/acc for carbon fixation, nifH for nitrogen fixation), carbon decomposition (e.g., amyA and pulA for labile carbon decomposition, mnp and lcc for recalcitrant carbon decomposition), and greenhouse gas emissions (e.g., mcrA for methane production, norB for nitrous oxide production) across five FACE sites. Also, the relative abundance of those key genes was generally increased and directionally associated with increased biomass, soil carbon decomposition, and soil moisture. In addition, a further literature survey of more disparate FACE experimental sites indicated increased biomass, soil carbon decay, nitrogen fixation, methane and nitrous oxide emissions, plant and soil carbon and nitrogen under eCO(2). A conceptual framework was developed to link commonly responsive functional genes with ecosystem processes, such as pcc/acc vs. soil carbon storage, amyA/pulA/mnp/lcc vs. soil carbon decomposition, and nifH vs. nitrogen availability, suggesting that such common responses of microbial functional genes may have the potential to predict ecosystem functioning and sustainability in the future eCO(2) environment. y
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/45184]
专题	生态环境研究中心_中国科学院环境生物技术重点实验室
推荐引用方式 GB/T 7714	He, Zhili,Deng, Ye,Xu, Meiying,et al. Microbial functional genes commonly respond to elevated carbon dioxide[J]. ENVIRONMENT INTERNATIONAL,2020,144:1-3.
APA	He, Zhili.,Deng, Ye.,Xu, Meiying.,Li, Juan.,Liang, Junyi.,...&Zhou, Jizhong.(2020).Microbial functional genes commonly respond to elevated carbon dioxide.ENVIRONMENT INTERNATIONAL,144,1-3.
MLA	He, Zhili,et al."Microbial functional genes commonly respond to elevated carbon dioxide".ENVIRONMENT INTERNATIONAL 144(2020):1-3.