Plant feeding by insect vectors can affect life cycle, population genetics and evolution of plant viruses
Plant feeding by insect vectors can affect life cycle, population genetics and evolution of plant viruses
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DOI：
10.1111/1365-2435.12070
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发表时间：
2013-06-01
影响因子：
5.2
通讯作者：
Blanc, Stephane
中科院分区：
文献类型：
--
作者：
Gutierrez, Serafn;Michalakis, Yannis;Blanc, Stephane
从宿主到宿主的传播是病原体（特别是病毒）生命周期中的一个关键步骤，确保在宿主群体中传播和维持。植物的不动特性以及细胞周围的强大果胶和纤维素屏障限制了大多数植物病毒物种使用载体（主要是昆虫）从一个宿主到另一个宿主的出口、转移和进入。越来越多的证据表明，植物病毒可以影响病媒的生理和行为，从而增加它们传播的机会，要么直接传播，要么通过改造寄主植物。相比之下，对可能的相互作用知之甚少，在这种相互作用中，媒介的生活方式将对受感染植物内的病毒行为和/或表型、种群遗传学及其进化产生重大影响。这些三方相互作用对每个合作伙伴的生态的复杂可能影响尚未得到详尽的探索。在简要总结了目前关于病毒如何诱导昆虫媒介行为、生理和种群动态变化的知识之后，本文将重点介绍与以下方面有关的不可预见的方面：(i)不同昆虫媒介的摄食习惯对植物病毒进化的影响；（ii）媒介相关胁迫诱导植物中病毒行为发生重大转变的可能性。主要影响昆虫媒介传播的效率。
Transmission from host to host is a crucial step in the life cycle of pathogens, particularly of viruses, ensuring spread and maintenance in host populations. The immobile nature of plants and the strong pectin and cellulose barrier surrounding cells have constrained most plant virus species to use vectors (mainly insects) for exit, transfer and entry from one host to another. A growing body of evidence is showing that plant viruses can influence vector physiology and behaviour to increase their chances of transmission, either directly or through modification of the host plant. In contrast, little is known on the possible reciprocal interaction, where the vector way of life would significantly impact on the viral behaviour and/or phenotype within the infected plants, on its population genetics and its evolution. The complex possible reaches of these three-way interactions on the ecology of each partner have not been exhaustively explored. After briefly summarizing the current knowledge on how viruses can induce changes in insect vector behaviour, physiology and population dynamics, this review focuses on presenting unforeseen aspects related to (i) the impacts that the feeding habits of different insect vectors can have on the evolution of plant viruses and (ii) the possibility that vector-related stresses induce major switches in the behaviour' of viruses in planta, affecting primarily the efficiency of transmission by insect vectors.