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
孙勤哲 牛金志 王进军
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DOI:10.7679/j.issn.2095-1353.2022.027
作者单位:西南大学植物保护学院,重庆 400715;西南大学农业科学研究院,重庆 400715
中文关键词:二斑叶螨;种群;解毒代谢;唾液效应子;寄主适应
英文关键词:Tetranychus urticae; population; detoxification; salivary protein; host adaptability
中文摘要:
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。
英文摘要:
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.