Long-term nickel exposure altered the bacterial community composition but not diversity in two contrasting agricultural soils

文献类型： 外文期刊

第一作者： Li, Jing

作者： Li, Jing;Wang, Jun-Tao;Liu, Yu-Rong;He, Ji-Zheng;Li, Jing;Wang, Jun-Tao;Ma, Yi-Bing;Hu, Hang-Wei;He, Ji-Zheng

作者机构：

关键词： Nickel pollution;Soil bacterial community;Diversity;Abundance;Community composition;Soil microbial biomass carbon;Field experiment

期刊名称：ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH （ 影响因子：4.223； 五年影响因子：4.306 ）

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收录情况： SCI

摘要： Nickel pollution imposes deleterious effects on soil ecosystem. The responses of soil microorganisms to long-term nickel pollution under field conditions remain largely unknown. Here, we used high-throughput sequencing to elucidate the impacts of long-term nickel pollution on soil bacterial communities in two contrasting agricultural soils. Our results found that the soil microbial biomass carbon consistently decreased along the nickel gradients in both soils. Nickel pollution selectively favored or impeded the prevalence of several dominant bacterial guilds, in particular, Actinobacteria showed tolerance, while Acidobacteria and Planctomycetes displayed sensitivity. Despite the apparent shifts in the bacterial community composition, no clear tendency in the bacterial diversity and abundance was identified along the nickel gradients in either soil. Collectively, we provide evidence that long-term nickel pollution shifted the soil bacterial communities, resulting in the decrease of microbial biomass although the bacterial diversity was not significantly changed.

分类号： X5`X

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