植物病毒适应性机制研究进展

Research Advances on Adaptive Mechanism of Plant Virus

植物病毒是一类专性寄生生物,其生存和繁衍依赖于宿主植物和传播介体。植物病毒通过适应性进化来对抗宿主的防御系统,响应环境的变化,确保病毒的顺利传播和扩大种群数量,其适应性机制的研究不仅有助于我们对病毒的变异和进化、病毒与宿主及传播介体间的互作有更深刻的理解,更重要的是为植物病毒病的防治提供了新的思路和途径。主要从RNA沉默抑制子、快速进化、病毒的传播3个方面,就近年来在植物病毒适应性机制研究领域的一些进展进行概述。

Survival and reproduction of plant viruses which are obligate parasites,depend on hosts and vectors.They overcome the defense system of host,response to environmental change,to ensure virus spread smoothly and expand population by adaptive evolution.Research on adaptive mechanism will help to profound understanding of the variation and evolution of virus as well as the interaction between virus and host or virus and vector,and get new ideas and approaches to control plant virus.This article provides an overview of the research advances on adaptive mechanism of plant virus in recent years,including RNA silencing suppressors,fast evolution,and the spread of virus.