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Mechanisms of soil acidification reducing bacterial diversity

文献类型：期刊论文

作者Zhang, Ximei2; Liu, Wei1,5; Zhang, Guangming; Jiang, Lin2; Han, Xingguo3
刊名SOIL BIOLOGY & BIOCHEMISTRY
出版日期2015
卷号81页码:275-281
关键词Microbial diversity Soil acidification Ecological filtering Environmental filtering Evolutionary adaptation Dispersal
ISSN号0038-0717
DOI10.1016/j.soilbio.2014.11.004
文献子类Article
英文摘要A central goal in soil microbial ecology research is to identify the biodiversity patterns and reveal the underlying mechanisms. Long-term soil acidification is known to reduce soil bacterial diversity, but the mechanisms responsible for this pattern have not been well explored. Soil acidification may reduce bacterial richness through ecological filtering (EF). In contrast, two types of processes may promote the maintenance of bacterial richness: species may adapt to the acidic pressure through evolution, and endemic species already adapted to the acidic pressure can colonize the acidified soils through dispersal. To identify the relative contribution of EF and evolution/dispersal (ED), we collected soils with a pH range of 4-7 from different ecosystems, conducted an acidification experiment with a similar pH range in a neutral soil, and proposed a conceptual framework that could distinguish the three potential types of mechanism (neither EF nor ED operate; EF operates alone; ED counteracts some effect of EF). We found that the entire bacterial domain was driven by the third type of mechanism, with ED counteracting about 42.4% (95% confidence interval: 32.7-50.4%) effect of EF. Meanwhile, different bacterial phyla/classes were governed by different types of mechanisms, and the dominant was the third type. Our results highlight the importance of both ecological and evolutionary mechanisms for regulating soil bacterial communities under environmental changes. (C) 2014 Elsevier Ltd. All rights reserved.
学科主题Soil Science
出版地OXFORD
WOS关键词COMMUNITIES ; BIOGEOGRAPHY ; PH
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000350524700033
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构National Natural Science Foundation of China [31300431] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDB15010404] ; State Key Laboratory of Forest and Soil Ecology of China [LFSE2013-15] ; National Science Foundation of USA [DEB-1257858, DEB-1342754]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/25733]  
专题植物研究所_系统与进化植物学研究中心_系统与进化植物学研究中心_学位论文
作者单位1.Georgia Inst Technol, Sch Biol, Atlanta, GA 30332 USA
2.Chinese Acad Sci, Inst Appl Ecol, State Key Lab Forest & Soil Ecol, Shenyang 110016, Peoples R China
3.Chinese Acad Sci, Inst Bot, Key Lab Plant Resources, Beijing 100093, Peoples R China
4.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
5.Chinese Acad Sci, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Ximei,Liu, Wei,Zhang, Guangming,et al. Mechanisms of soil acidification reducing bacterial diversity[J]. SOIL BIOLOGY & BIOCHEMISTRY,2015,81:275-281.
APA Zhang, Ximei,Liu, Wei,Zhang, Guangming,Jiang, Lin,&Han, Xingguo.(2015).Mechanisms of soil acidification reducing bacterial diversity.SOIL BIOLOGY & BIOCHEMISTRY,81,275-281.
MLA Zhang, Ximei,et al."Mechanisms of soil acidification reducing bacterial diversity".SOIL BIOLOGY & BIOCHEMISTRY 81(2015):275-281.

入库方式： OAI收割

来源：植物研究所

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