地球上所有细胞生物都受到病毒的侵染。病毒与宿主的互作常常决定某种生物的生死。菌物与植物都是病毒的重要宿主，受病毒侵染的现象很普遍。通常将侵染菌物的病毒称为真菌病毒，将侵染植物的病毒称为植物病毒。真菌病毒是一类新的生防资源，具有生防效果的病毒一经释放便可以在作物生长微环境中自觉传播，侵染目标病原菌，不仅抑制其致病能力，而且调控整个生态环境，实现绿色可持续发展，因而具有开发成新型生物杀菌剂的极大潜力；而植物病毒则是重要的病原微生物，严重危害农业安全生产，是造成植物减产的重要原因之一。因而有效控制重大病毒病对农作物的危害是国家重要作物安全供给和农业可持续发展的重要需求。基于以上共识，实验室主要研究方向如下：

​

      1、真菌病毒的生物防治：利用植物寄主-病原真菌-真菌病毒相互作用的研究体系，在分子生物学，细胞生物学水平分析真菌病毒对真菌形态、致病力的影响。着重探索真菌病毒引起植物病原真菌致病力衰退的分子机理。

​

      2、植物病毒病基础研究与防控：开展重要作物病毒病的诊断，病原鉴定，分子变异、抗病品种筛选等研究工作。系统开展病毒的致病机理和植物抗病毒机制研究，包括病毒基因组功能分析，寄主抗病途径鉴定，病毒-介体-寄主间相互作用，以及低温介导的植物病毒暴发流行的分子机制等研究。

​

        1、 Our research interests in characterizing and studying fungal viruses, particularly from those infecting plant pathogenic fungi. To identify a potential biological agent of plant pathogenic fungi by extensively screening or generating the virulence attenuated fungal strains by means of developing viral transfect technology. In addition, a growing number of newly identified fungal viruses greatly contribute to better understanding of virus taxonomy and evolution.

​

        2、 Virus diseases largely reduce crop yield and have always been a major concern in agricultural production because chemical treatments or conventional agronomical methods are not effective to control them. Hence, our secondary research interests in understanding of how viruses been transmitted to and induced disease in plant and what are crucial for developing new and effective techniques to prevent viral disease in the plants.  Our studies cover a wide range of research topics regarding virus diseases in crops and fruit trees that are economically important in China. These viruses have been long known to exist but still pose a serious threat to crop production. In addition, we also devise new molecular diagnostic methods for detection of viruses that infect fruit trees. For molecular studies on viral gene functions, we identify and characterize the viral proteins that have roles in suppression of RNA silencing, viral pathogenicity and virus movement. Recently, a new project work has been started to investigate what effects of virus infection on plant metabolism in the context of the alteration of synthesis, translocation and function of various cellular components.