Application of Natural Bioresources to Sustainable Agriculture: A C-Glycoside Insecticide Based on N-Acetyl-glucosamine for Regulating Insect Molting of Ostrinia furnacalis

文献类型： 外文期刊

第一作者： Liang, Peibo

作者： Liang, Peibo;Li, Jingmin;Li, Jianyang;Zhang, Jianjun;Chen, Wei;Yang, Qing;Chen, Wei;Yang, Qing;Yang, Qing

作者机构：

关键词： natural bioresources; N-acetyl-glucosamine; OfHex1; green pesticides; SEM; toxicity

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：6.1； 五年影响因子：6.3 ）

ISSN： 0021-8561

年卷期： 2023 年 71 卷 14 期

页码：

收录情况： SCI

摘要： In order to increase the application of natural bioresources in drug discovery and development, a study on N-acetyl-glucosamine (GlcNAc) derivatives of chitin as green pesticides was necessary. In this study, we designed and synthesized a series of novel C-glycoside naphthalimides using GlcNAc as a starting material. Compound 10l showed high inhibitory activity against OfHex1 (IC50 = 1.77 mu M), with a nearly 30-fold increase in activity over our previously reported C-glycoside CAUZL-A (IC50 = 47.47 mu M). By observing the morphology of the Ostrinia furnacalis, we found that the synthesized compounds significantly inhibited the molting process. In addition, we further explored the morphological changes of the inhibitor-treated O. furnacalis cuticle using scanning electron microscopy. This is the first study to validate the insecticidal mechanism of OfHex1 inhibitors at the microscale level. Several compounds also exhibited excellent larvicidal activity against Plutella xylostella. Moreover, the toxicity measurements and predictions indicated that the C-glycoside naphthalimides have little effect on the natural enemy Trichogramma ostriniae and rats. Together, our results highlight an approach for the design of green pesticides, taking advantage of natural bioresources to control pests in agriculture.

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