Combined effects of azoxystrobin and oxytetracycline on rhizosphere microbiota of Arabidopsis thaliana

文献类型： 外文期刊

第一作者： Zhu, Yuke

作者： Zhu, Yuke;Ke, Mingjing;Yu, Zhitao;Lei, Chaotang;Liu, Meng;Yang, Yaohui;Lu, Tao;Qian, Haifeng;Zhou, Ning-Yi;Peijnenburg, W. J. G. M.;Peijnenburg, W. J. G. M.;Tang, Tao

作者机构：

关键词： Pesticide; Arabidopsis thaliana; Combined exposure; Rhizosphere soil; Antagonism

期刊名称：ENVIRONMENT INTERNATIONAL （ 影响因子：11.8； 五年影响因子：12.4 ）

ISSN： 0160-4120

年卷期： 2024 年 186 卷

页码：

收录情况： SCI

摘要： The rhizosphere is one of the key determinants of plant health and productivity. Mixtures of pesticides are commonly used in intensified agriculture. However, the combined mechanisms underlying their impacts on soil microbiota remain unknown. The present study revealed that the rhizosphere microbiota was more sensitive to azoxystrobin and oxytetracycline, two commonly used pesticides, than was the microbiota present in bulk soil. Moreover, the rhizosphere microbiota enhanced network complexity and stability and increased carbohydrate metabolism and xenobiotic biodegradation as well as the expression of metabolic genes involved in defence against pesticide stress. Co-exposure to azoxystrobin and oxytetracycline had antagonistic effects on Arabidopsis thaliana growth and soil microbial variation by recruiting organic-degrading bacteria and regulating ABC transporters to reduce pesticide uptake. Our study explored the composition and function of soil microorganisms through amplicon sequencing and metagenomic approaches, providing comprehensive insights into the synergistic effect of plants and rhizosphere microbiota on pesticides and contributing to our understanding of the ecological risks associated with pesticide use.

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