Azoxystrobin/ chitosan -graft- salicylic acid nanomicelles for dual-targeted rice protection: Antifungal and salt stress mitigation

文献类型： 外文期刊

第一作者： Li, Yunzhe

作者： Li, Yunzhe;Qin, Ziqi;Liu, Sihan;Chen, Lihan;Qian, Kun;Bian, Qiang;Chen, Hanqiu

作者机构：

关键词： Azoxystrobin; Magnaporthe oryzae; Antifungal; Nanomicelles

期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.5； 五年影响因子：8.7 ）

ISSN： 0141-8130

年卷期： 2025 年 318 卷

页码：

收录情况： SCI

摘要： This paper studied the effect of a new type of nano-pesticide on the control of rice blast (Magnaporthe oryzae) disease. In this study, AZOX/CS-graft-SA (azoxystrobin/chitosan-salicylic acid) nanoformulations were prepared, and the inhibitory effects of different concentrations on rice blast fungus and effects on rice growth and development were determined. The results showed all three drugs could effectively inhibit fungal growth, and the higher the concentration, the more significant the effect. Meanwhile, different concentrations of CS-graft-SA were added to rice planted under different salt concentrations, and physiological indexes and related enzyme activities of rice were measured. It was concluded that no matter what concentration of reagent, salt resistance of rice was improved. Among them, 250 mg/L CS-graft-SA has better effect. In summary, the CS-graft-SA nano-capsules prepared by chitosan and salicylic acid have good biocompatibility and can promote rice growth. The AZOX/CS-graft-SA nanoformulations prepared by loading the pesticide azoxystrobin on them can enhance the fungicidal activity of azoxystrobin against rice blast fungus, which provides important support for the promotion and application of CS-graft-SA nanocapsules in agriculture.

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