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Decreased plant productivity resulting from plant group removal experiment constrains soil microbial functional diversity
Zhang, Ximei1; Johnston, Eric R.; Barberan, Albert3; Ren, Yi4; Lu, Xiaotao1; Han, Xingguo1,5
2017
发表期刊GLOBAL CHANGE BIOLOGY
ISSN1354-1013
卷号23期号:10页码:4318-4332
摘要Anthropogenic environmental changes are accelerating the rate of biodiversity loss on Earth. Plant diversity loss is predicted to reduce soil microbial diversity primarily due to the decreased variety of carbon/energy resources. However, this intuitive hypothesis is supported by sparse empirical evidence, and most underlying mechanisms remain underexplored or obscure altogether. We constructed four diversity gradients (0-3) in a five-year plant functional group removal experiment in a steppe ecosystem in Inner Mongolia, China, and quantified microbial taxonomic and functional diversity with shotgun metagenome sequencing. The treatments had little effect on microbial taxonomic diversity, but were found to decrease functional gene diversity. However, the observed decrease in functional gene diversity was more attributable to a loss in plant productivity, rather than to the loss of any individual plant functional group per se. Reduced productivity limited fresh plant resources supplied to microorganisms, and thus, intensified the pressure of ecological filtering, favoring genes responsible for energy production/conversion, material transport/metabolism and amino acid recycling, and accordingly disfavored many genes with other functions. Furthermore, microbial respiration was correlated with the variation in functional composition but not taxonomic composition. Overall, the amount of carbon/energy resources driving microbial gene diversity was identified to be the critical linkage between above-and belowground communities, contrary to the traditional framework of linking plant clade/taxonomic diversity to microbial taxonomic diversity.
关键词biodiversity biodiversity loss functional diversity grassland inner Mongolia metagenome microbial diversity
学科领域Geology
DOI10.1130/G38583.1
收录类别SCI
语种英语
WOS关键词CLIMATE-CHANGE ; GRASSLAND ; BIODIVERSITY ; COMMUNITIES ; DATABASE ; DYNAMICS ; ASSOCIATIONS ; GRADIENT ; IDENTITY ; SYSTEMS
WOS记录号WOS:000396125100006
出版者WILEY
文献子类Article
出版地HOBOKEN
EISSN1365-2486
资助机构National Key Research and Development Program of China [2016YFC0500702] ; Strategic Priority Research Program of CAS of China [XDB15010404]
作者邮箱zhangximei@caas.cn ; xghan@ibcas.ac.cn
作品OA属性hybrid
引用统计
被引频次:279[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ibcas.ac.cn/handle/2S10CLM1/22158
专题植被与环境变化国家重点实验室
作者单位1.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, MOA, Key Lab Dryland Agr, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Appl Ecol, Shenyang, Liaoning, Peoples R China
3.Johnston, Eric R.] Georgia Inst Technol, Sch Civil & Environm Engn, Atlanta, GA 30332 USA
4.Univ Arizona, Dept Soil Water & Environm Sci, Tucson, AZ USA
5.Shanghai Majorbio Biopharm Biotechnol Co Ltd, Shanghai, Peoples R China
6.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China
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GB/T 7714
Zhang, Ximei,Johnston, Eric R.,Barberan, Albert,et al. Decreased plant productivity resulting from plant group removal experiment constrains soil microbial functional diversity[J]. GLOBAL CHANGE BIOLOGY,2017,23(10):4318-4332.
APA Zhang, Ximei,Johnston, Eric R.,Barberan, Albert,Ren, Yi,Lu, Xiaotao,&Han, Xingguo.(2017).Decreased plant productivity resulting from plant group removal experiment constrains soil microbial functional diversity.GLOBAL CHANGE BIOLOGY,23(10),4318-4332.
MLA Zhang, Ximei,et al."Decreased plant productivity resulting from plant group removal experiment constrains soil microbial functional diversity".GLOBAL CHANGE BIOLOGY 23.10(2017):4318-4332.
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