摘要
昆虫病原真菌是寄生于昆虫而引起昆虫死亡的一类真菌,具有高杀虫效力且对环境的影响较小,常被用作生物杀虫剂来控制害虫,具有重要的应用价值。本文对昆虫病原真菌的分类信息进行了归纳总结,系统阐述了真菌侵染宿主的过程以及在感染过程中对宿主行为的改变及孢子传播的机制。随后梳理了昆虫在面对感染时采取相应抵抗感染的策略,主要包括体壁防御和自身免疫系统的防御以及行为上避免真菌病原体。在此基础上讨论了真菌对昆虫的致病机制以及与昆虫的防御机制二者联系紧密的协同进化关系。最后我们对未来的研究方向进行了展望,强调应该依据传染病传播动力学的基本模型探究昆虫虫口密度与环境中的孢子浓度对传染病暴发的影响,研究真菌传播规律以指导田间应用。
Background:Entomopathogenic fungi are a group of fungi that parasitize insects and cause insect death,with high insecticidal efficacy and low impact on the environment.Entomopathogenic fungi have important application and are often used as biopesticides to control pests.Progress:This paper provides an overview of the categorization information for insect pathogenic fungi and elaborates on the processes involved in fungal infection of the host,changes in host behavior,and the mechanism of spore transport during infection.Following that,the strategies used by insects to fight infection are sorted,focusing mostly on body wall defense,autoimmune system protection,and behavioral avoidance of fungal pathogens.On the basis of this,the coevolutionary relationship between the defense mechanisms of insects and the harmful mechanism of fungi on insects is examined.Prospects:We look forward to future research directions,emphasizing that the effects of insect population density and spore concentration in the environment on infectious disease outbreaks should be investigated based on basic models of infectious disease transmission dynamics,and that fungal transmission patterns should be studied to guide field applications.
作者
戚海迪
张定海
单立山
陈国鹏
张勃
Haidi Qi;Dinghai Zhang;Lishan Shan;Guopeng Chen;Bo Zhang(Center for Quantitative Biology,College of Science,Gansu Agricultural University,Lanzhou 730070;College of Forestry,Gansu Agricultural University,Lanzhou 730070;Pratacultural College,Gansu Agricultural University,Lanzhou 730070)
出处
《生物多样性》
CAS
CSCD
北大核心
2023年第11期222-235,共14页
Biodiversity Science
基金
国家自然科学基金项目(42361016)
甘肃省科技创新计划——“西部之光”人才计划项目(22JR9KA032)
甘肃省科技计划项目(21JR7RA831)
重点研发计划-农业领域(23YFNA0036)。
关键词
昆虫病原真菌
感染机制
宿主行为变化
防御策略
协同进化
entomopathogenic fungi
mechanism of infection
changes in host behavior
defensive strategy
coevolution
