昆虫唾液介导的植物与植食性昆虫防御与反防御研究进展

Research Progress on the Role of Insect Saliva in Defense and Anti-defense of Plant-insect Interactions

植物和植食性昆虫在长期的相互作用和共同进化过程中,彼此之间形成了复杂的适应机制.在取食的过程中,昆虫唾液中的激发子会与植物相关受体结合,通过信号传导级联诱导植物产生防御蛋白、有毒的次生代谢物来抵御昆虫的取食或生存.同时,昆虫也进化出了干预植物防御的策略,其唾液中的效应子可以抑制植物免疫反应,从而有利于昆虫在植物上的正常生长与繁殖.本文综述了植物与植食性昆虫相互作用中的主要特征,介绍了植物在感知虫害后所采取的各种策略,以阻止植食性昆虫发展的抗性机制,并强调昆虫唾液在植物-昆虫相互作用中的重要作用,为研究新型害虫可持续控制策略提供新思路.

Plants and herbivorous insects have formed complex adaptation mechanisms in the long-term interaction and co-evolution process.During feeding,elicitors of insect saliva could bind to plant defense-related receptors,induce plants to produce defense related proteins and toxic secondary metabolites to reduce feeding or survival through defense-related signal pathways.At the same time,insects could also have evolved strategies to intervene in plant defenses.The effectors in their saliva could induce plant immune responses,thereby facilitating the normal growth and reproduction of insects on plants.This review deals with the main characteristics of the interaction between plants and herbivorous insects,introduce the various strategies adopted by plants after sensing pests to prevent the resistance mechanism of herbivorous insects,emphasize the important role of insect saliva in their interactions,and provide new ideas for the study of new sustainable pest control strategies.