Exposure to thiazole pesticides disrupts pathogens and undermines keystone status of rare taxa within bacterial ecological networks
文献类型： 外文期刊
作者： Lv, Minghao 1 ; Shi, Wenchong 1 ; Xu, Jie 2 ; He, Shidong 1 ; Wang, Lujun 1 ; Li, Mingcong 1 ; Ma, Lanxiang 2 ; Wang, Jiguang 3 ; Nie, Fengjie 4 ; Xu, Bingjie 5 ; Han, Yifeng 1 ; Zhou, Bo 1 ; Gao, Zheng 1 ;
作者机构： 1.Shandong Agr Univ, Coll Life Sci, State Key Lab Wheat Improvement, Tai An 271018, Shandong, Peoples R China
2.Zaozhuang Acad Agr Sci, Zaozhuang 27710, Shandong, Peoples R China
3.Shandong Future Biotechnol Co Ltd, Tai An 271027, Shandong, Peoples R China
4.NingXia Acad Agr & Forestry Sci, Agr Biotechnol Res Ctr, Yinchuan 750000, Ningxia, Peoples R China
5.Shandong Agr Univ, Coll Agron, Tai An 271018, Shandong, Peoples R China
关键词： Agrochemicals; Plant Microbiome; Rare Taxa; Off-Target Effects
期刊名称：ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY （ 影响因子：6.1； 五年影响因子：6.4 ）
ISSN： 0147-6513
年卷期： 2025 年 292 卷
页码：
收录情况： SCI
摘要： Considering the sensitivity of rare microbial taxa to environmental disturbances and their critical roles in ecosystems, it is essential to investigate how soil microbial communities (particularly rare microbes) respond to pesticide exposure. In this study, we found that thiazole pesticides significantly reduced the severity of potato common scab and effectively disrupted the pathogen's cell membrane integrity. Notably, hierarchical partitioning analysis indicated that the rare microbial taxa in potato geocaulosphere soil constitute key clusters influencing disease incidence. Within bacterial molecular ecological networks, nodes corresponding to these rare taxa generally exhibited higher degrees compared to those of more abundant taxa. However, pesticide exposure reduced the number of keystone nodes and substantially weakened the hub status of rare bacterial taxa in these networks. These findings suggest that, although thiazole pesticides effectively eradicate pathogens, they may also pose a non-negligible potential risk to rare taxa in agricultural ecosystems.
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