Analysis of bacterial communities in rhizosphere soil of continuously cropped healthy and diseased konjac

文献类型： 外文期刊

第一作者： Wu, Jinping

作者： Wu, Jinping;Jiao, Zhenbiao;Zhou, Jie;Guo, Fengling;Ding, Zili;Qiu, Zhengming

作者机构：

关键词： High throughput sequencing analysis;Bacterial community;Continuous cropping;Amorphophallus konjac

期刊名称：WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY （ 影响因子：3.312； 五年影响因子：3.58 ）

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年卷期：

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收录情况： SCI

摘要： The bacterial community and diversity in healthy and diseased konjac rhizosphere soils with different ages of continuous cropping were investigated using next-generation sequencing. The results demonstrated that the number of years of continuous cropping significantly altered soil bacterial community and diversity. Soil bacterial Shannon diversity index and Chao 1 index decreased with the increasing cropping years of konjac. After 1 year of cropping, the soil exhibited the highest bacterial relative abundance and diversity. Of the 44 bacterial genera (relative abundance ratio of genera greater than 0.3%), 14 were significantly affected by the duration of continuous cropping and plant status. With increasing continuous cropping, Alicyclobacillus decreased, while Achromobacter, Lactobacillus, Kaistobacter, Rhodoplanes increased after 3 years continuous cropping. Continuous cropping altered the structure and composition of the soil bacterial community, which led to the reduction in the beneficial bacteria and multiplication of harmful bacteria. These results will improve our understanding of soil microbial community regulation and soil health maintenance in konjac farm systems.

分类号： Q93

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