Knowledge Management System Of Institute Of Botany,CAS
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 |
ISSN | 1354-1013 |
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 |
DOI | 10.1130/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 |
EISSN | 1365-2486 |
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 | |
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 |
推荐引用方式 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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