叶螨适应寄主植物的分子机制  

The molecular mechanism underlying the adaptation of spider mites to host plants

作　　者：孙勤哲 牛金志[1,2] 王进军 SUN Qin-Zhe;NIU Jin-Zhi;WANG Jin-Jun(College of Plant Protection,Southwest University,Chongqing 400715,China;Academy of Agricultural Sciences,Southwest University,Chongqing 400715,China)

机构地区：[1]西南大学植物保护学院,重庆400715 [2]西南大学农业科学研究院,重庆400715

出　　处：《应用昆虫学报》2022年第2期250-256,共7页Chinese Journal of Applied Entomology

基　　金：National Key R&D Program of China(2019YFD1002100)。

摘　　要：叶螨作为一类重要的世界性农业害螨,是典型的r-对策生物,在生产中极难防控,易暴发成灾。由于叶螨个体小及迁移能力弱等生物学特性,致使叶螨对寄主植物的选择性较弱而适应性较强,如何尽快完成取食并抑制植物防御对叶螨的生存极为关键。叶螨以极小的口针刺吸植物表面的叶肉细胞获取营养物质,并通过肠道特有的巨型游离消化细胞完成营养物质的消化。长期进化中,叶螨形成了独特的取食及与寄主植物互作的策略。本文从叶螨取食不同寄主植物的种群适应性、解毒代谢和唾液效应子三个方面对该领域进行综述,旨在为叶螨与寄主植物互作的研究提供参考。Spider mites are globally important agricultural pests,and being a typical r-strategy species,are extremely difficult to control.Due to their small body size and weak dispersal ability,spider mites show weak host preferences and high adaptability to different host plants.Feeding efficiently while suppressing plant defenses is critical for spider mite survival.Spider mites mainly obtain nutrients by sucking mesophyll cells on the surface of plants with a tiny stylet,and digest the ingested materials through detached giant digestive cells in their gut;a unique strategy of feeding and interaction with host plants.This review summarizes three aspects of the spider-mite vs host-plant interaction;the population dynamics of spider mites feeding on different hosts,detoxification mechanisms and saliva effector protein.Hopefully this review will facilitate further research on the interaction between spider mites and host plants.

关 键 词：二斑叶螨 种群 解毒代谢 唾液效应子 寄主适应 

分 类 号：S433.7[农业科学—农业昆虫与害虫防治]