Cu-Ag nanoparticles positively modulating the endophytic bacterial community in tomato roots affected by bacterial wilt

文献类型： 外文期刊

第一作者： Ning, Weimin

作者： Ning, Weimin;Jiang, Lei;Yang, Mei;Lei, Tianhao;Liu, Maoyan;Ning, Weimin;Liu, Yong;Bao, Xuefeng

作者机构：

关键词： tomato; Ralstonia solanacearum; Cu-Ag nanoparticles; endophyte; bacterial community

期刊名称：FRONTIERS IN MICROBIOLOGY （ 影响因子：4.5； 五年影响因子：5.2 ）

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年卷期： 2025 年 16 卷

页码：

收录情况： SCI

摘要： Introduction Tomato bacterial wilt (TBW) is a destructive soil-borne bacterial infection caused by Ralstonia solanacearum. Various nanoparticles have been employed as antibacterial agents to manage TBW via soil application. However, research on the effects of nanoparticles on plant endophytes remains limited.Methods Here, an analysis of the endophytic bacterial community was performed on healthy and infected tomatoes that were treated with Cu-Ag nanoparticles and thiodiazole-copper via high-throughput 16S rRNA gene amplicon sequencing.Results The relative abundance levels of beneficial bacteria, including Acidobacteriota, Firmicutes, Actinobacteriota, and Myxococcota, were higher in infected tomato roots treated with Cu-Ag nanoparticles compared with thiodiazole-copper. Functional predictions show that Cu-Ag nanoparticles may affect pyruvate metabolism, oxidative phosphorylation, purine metabolism, carbon metabolism, secondary metabolite production, and the metabolic pathways associated with microbial communities.Discussion These results could reveal the mechanism by which nanoparticles influence the endophytic microbiomes of plant roots and direct the rational application of nanoparticlesin sustainable agriculture.

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