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DOI10.1002/mbo3.699
Abundance, rather than composition, of methane-cycling microbes mainly affects methane emissions from different vegetation soils in the Zoige alpine wetland
Zhang, Yanfen1,2; Cui, Mengmeng2,3; Duan, Jingbo2,4; Zhuang, Xuliang1,2; Zhuang, Guoqiang1,2; Ma, Anzhou1,2
发表日期2019
ISSN2045-8827
卷号8期号:4
英文摘要

Methane fluxes, which are controlled by methanogens and methanotrophs, vary among wetland vegetation species. In this study, we investigated belowground methanogens and methanotrophs in two soils under two different dominant vegetation species with different methane fluxes in the Zoige wetland, which was slightly but significantly (p <= 0.05) higher in soils covered by Carex muliensis than that in soils covered by Eleocharis valleculosa. Real-time quantitative PCR and Illumina MiSeq sequencing methods were used to elucidate the microbial communities based on the key genes involved in methane production and oxidation. The absolute abundances of methanogens and methanotrophs of samples from C. muliensis were 1.80 +/- 0.07 x 10(6) and 4.03 +/- 0.28 x 10(6) copies g-soil(-1), respectively, and which from E. valleculosa were 3.99 +/- 0.19 x 10(5) and 2.53 +/- 0.22 x 10(6) copies g-soil(-1) , respectively. The t-test result showed that both the abundance of methanogens and methanotrophs from C. muliensis were significantly higher (p <= 0.05) than that of samples from E. valleculosa. However, the diversities and compositions of both methanogens and methanotrophs showed no significant differences (p >= 0.05) between vegetation species. The path analysis showed that the microbial abundance had a greater effect than the microbial diversity on methane production potentials and the regression analysis also showed that the methane emissions significantly (p <= 0.05) varied with the abundance of methane-cycling microbes. These findings imply that abundance rather than diversity and composition of a methane-cycling microbial community is the major contributor to the variations in methane emissions between vegetation types in the Zoige wetland.


WOS研究方向Microbiology
来源期刊MICROBIOLOGYOPEN
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/96197
作者单位1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Environm Biotechnol, Beijing 100085, Peoples R China;
2.Univ Chinese Acad Sci, Beijing, Peoples R China;
3.Chinese Acad Sci, Inst Biophys, Natl Lab Biomacromol, Beijing, Peoples R China;
4.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, Hefei, Anhui, Peoples R China
推荐引用方式
GB/T 7714
Zhang, Yanfen,Cui, Mengmeng,Duan, Jingbo,et al. Abundance, rather than composition, of methane-cycling microbes mainly affects methane emissions from different vegetation soils in the Zoige alpine wetland[J],2019,8(4).
APA Zhang, Yanfen,Cui, Mengmeng,Duan, Jingbo,Zhuang, Xuliang,Zhuang, Guoqiang,&Ma, Anzhou.(2019).Abundance, rather than composition, of methane-cycling microbes mainly affects methane emissions from different vegetation soils in the Zoige alpine wetland.MICROBIOLOGYOPEN,8(4).
MLA Zhang, Yanfen,et al."Abundance, rather than composition, of methane-cycling microbes mainly affects methane emissions from different vegetation soils in the Zoige alpine wetland".MICROBIOLOGYOPEN 8.4(2019).
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