Metabolomic Profiling Reveals the Effects of Cu-Ag Nanoparticles on Tomato Bacterial Wilt
文献类型： 外文期刊
作者： Ning, Weimin 1 ; Jiang, Lei 1 ; Yang, Mei 1 ; Lei, Tianhao 1 ; Liu, Chan 1 ; Zhao, Fei 1 ; Shu, Pan 1 ; Liu, Yong 2 ;
作者机构： 1.Xichang Univ, Agr Sci Coll, Xichang 615000, Peoples R China
2.Hunan Univ, Biol Coll, Longping Branch, Changsha 410125, Peoples R China
3.Hunan Acad Agr Sci, Key Lab Pest Management Hort Crop Hunan Prov, Changsha 410125, Peoples R China
关键词： Cu-Ag nanoparticles; tomato; metabolomics; fatty acyls; organooxygen compounds
期刊名称：METABOLITES （ 影响因子：3.7； 五年影响因子：4.1 ）
ISSN：
年卷期： 2025 年 15 卷 8 期
页码：
收录情况： SCI
摘要： Background: The bacterial wilt of tomatoes, caused by Ralstonia solanacearum, is a soil-borne plant disease that causes substantial agricultural economic losses. Various nanoparticles have been utilized as antibacterial agents to mitigate pathogenic destructiveness and improve crop yields. However, there is a lack of in-depth research on how nanoparticles affect tomato metabolite levels to regulate the bacterial wilt of tomatoes. Methods: In this study, healthy and bacterial wilt-infected tomatoes were treated with Cu-Ag nanoparticles, and a metabolomics analysis was carried out. Results: The results showed that Cu-Ag nanoparticles had a significant prevention and control effect on the bacterial wilt of tomatoes. Metabolomic analysis revealed that the nanoparticles could significantly up-regulate the expression levels of terpenol lipids, organic acids, and organic oxygen compounds in diseased tomatoes, and enhance key metabolic pathways such as amino acid metabolism, carbohydrate metabolism, secondary metabolite metabolism, and lipid metabolism. These identified metabolites and pathways could regulate plant growth and defense against pathogens. Correlation analysis between the tomato microbiome and metabolites showed that most endophytic microorganisms and rhizospheric bacteria were positively correlated with fatty acyls groups and organic oxygen compounds. Conclusions: This study reveals that Cu-Ag nanoparticles can actively regulate the bacterial wilt of tomatoes by up-regulating the levels of lipid metabolism and organic oxygen compounds, providing an important theoretical basis for the application of nanoparticles in agriculture.
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