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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; Shi, Shengjing; Carrillo, Yolima; Van Nostrand, Joy D.; Hobbie, Sarah E.; Reich, Peter B.; Schadt, Christopher W.; Kent, Angela D.; Pendall, Elise; Wallenstein, Matthew; Luo, Yiqi; Yan, Qingyun; Zhou, Jizhong
2020-11
Source PublicationENVIRONMENT INTERNATIONAL
ISSN0160-4120
Volume144Pages:1-3
AbstractAtmospheric 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
Department中国科学院环境生物技术重点实验室
KeywordSoil microbial community Functional gene Common/specific response Elevated carbon dioxide Global change
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/45184
Collection中国科学院环境生物技术重点实验室
Recommended Citation
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.
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