Plant growth and oil contamination alter the diversity and composition of bacterial communities in agricultural soils across China,Land Degradation & Development

当前位置： X-MOL 学术 › Land Degrad. Dev. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Plant growth and oil contamination alter the diversity and composition of bacterial communities in agricultural soils across China
Land Degradation & Development ( IF 3.6 ) Pub Date : 2018-05-09 , DOI: 10.1002/ldr.2932
Shuo Jiao ₁ , Weimin Chen ₁ , Junman Wang ₁ , Lu Zhang ₁ , Fan Yang ₁ , Yanbing Lin ₁ , Gehong Wei ₁

Affiliation

The dynamics of microbial diversity in response to biotic and abiotic disturbances provide a sensitive indicator for evaluating the potential stability and degradation of soils in agro‐ecosystems. To determine the effect on soil bacterial communities of disturbances by plant growth (Robinia pseudoacacia) and oil contamination, we sequenced 16S rRNA genes using MiSeq technology. A greenhouse experiment was conducted using 21 agro‐soils from 19 provinces in China. Abiotic and biotic disturbances, including treating the soils with sterile water, crude oil, and/or an invasive plant, altered the bacterial community structure in the soils, increased bacterial richness, and reduced bacterial dispersion. Oil contamination exerted stronger effects on the bacterial α‐ and β‐diversity than plant growth. The different responses of bacterial communities and the core microbiome indicated that the disturbances shifted the prevalent soil microbial groups in agro‐ecosystems. Among different sampling sites, community dissimilarity increased with spatial distance. Edaphic factors (deterministic processes) exerted the primary influence on the assembly of soil microbiomes in agricultural fields, whereas geographic factors (stochastic processes) were less influential. The bacterial communities in agro‐soils from warmer regions were more sensitive to the disturbances. This study provides new insight into the alteration of soil microbiota by plant growth and oil contamination in agro‐ecosystems across a large spatial scale.

更新日期：2018-05-09

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11