Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Insect Sciences, Zhejiang University, Hangzhou, 310058, China.
Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou, 310058, China.
New Phytol. 2021 May;230(4):1305-1320. doi: 10.1111/nph.17261. Epub 2021 Mar 19.
Attacks on plants by both viruses and their vectors is common in nature. Yet the dynamics of the plant-virus-vector tripartite system, in particular the effects of viral infection on plant-insect interactions, have only begun to emerge in the last decade. Viruses can modulate the interactions between insect vectors and plants via the jasmonate, salicylic acid and ethylene phytohormone pathways, resulting in changes in fitness and viral transmission capacity of their insect vectors. Virus infection of plants may also modulate other phytohormones, such as auxin, gibberellins, cytokinins, brassinosteroids and abscisic acid, with yet undefined consequences on plant-insect interactions. Moreover, virus infection in plants may incur changes to other plant traits, such as nutrition and secondary metabolites, that potentially contribute to virus-associated, phytohormone-mediated manipulation of plant-insect interactions. In this article, we review the research progress, discuss issues related to the complexity and variability of the viral modulation of plant interactions with insect vectors, and suggest future directions of research in this field.
病毒及其载体对植物的攻击在自然界中很常见。然而，植物-病毒-载体三方系统的动态，特别是病毒感染对植物-昆虫相互作用的影响，仅在过去十年才开始显现。病毒可以通过茉莉酸、水杨酸和乙烯植物激素途径来调节昆虫载体与植物之间的相互作用，从而导致其昆虫载体的适应性和病毒传播能力发生变化。植物的病毒感染也可能调节其他植物激素，如生长素、赤霉素、细胞分裂素、油菜素内酯和脱落酸，但其对植物-昆虫相互作用的影响尚不清楚。此外，植物的病毒感染可能导致其他植物特征发生变化，如营养和次生代谢物，这些特征可能有助于与病毒相关的、由植物激素介导的植物-昆虫相互作用的操纵。在本文中，我们综述了这方面的研究进展，讨论了与病毒对植物与昆虫载体相互作用的调节的复杂性和可变性相关的问题，并提出了该领域未来的研究方向。
