作者:Zhang, Yimeng、Liu, Yan、Wu, Xiaoqing、Lu, Xingxing、Wang, Meizi、Ye, Dexing、Iqbal, Chandni、Sun, Wenyu、Zhang, Xinyuan、Zhang, Li、Yang, Xinling
DOI:10.1021/acs.jafc.3c09231
日期:——
(Dippu-AstR) and predicted the binding mode of H17 with Dippu-AstR to study the critical interactions and residues favorable to its bioactivity. Based on this binding mode, we designed and synthesized a series of H17 derivatives and assessed their insecticidal activity against D. punctata. Among them, compound Q6 showed higher insecticidal activity than H17 against D. punctata by inhibiting JH biosynthesis,
昆虫神经肽在调节昆虫的生长、发育、繁殖、神经传导、代谢和行为方面发挥着重要作用;因此,神经肽的G蛋白偶联受体被认为是设计绿色杀虫剂的重要靶点。蟑螂型尿抑素(AST)(FGLamides allatostatins)是双翅目昆虫中重要的神经肽,可抑制幼体中保幼激素(JH)的合成,影响昆虫的生长、发育和繁殖。因此,寻找针对尿抑素受体(AstR)的新型杀虫剂具有重要意义。此前,我们确定了 AST 类似物H17作为害虫防治的有希望的候选者。在此,我们首先对D. punctata ( Dippu- AstR) 中 AstR 的 3D 结构进行建模,并预测H17与Dippu -AstR 的结合模式,以研究有利于其生物活性的关键相互作用和残基。基于这种结合模式,我们设计并合成了一系列H17衍生物,并评估了它们对点状螨的杀虫活性。其中,化合物Q6通过抑制JH生物合成,对点状昆虫表现出比H17更高的杀虫活性