https://orcid.org/0000-0003-3748-905X
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ABSTRACT
The occurrence and increased dispersion of plant viruses and insect vectors are serious global threat to the production of agricultural crops. Facing novel pathogenic plant viruses, the ability to accurately identify plant virus species, and understand the interaction between plant viruses, host plants and their insect vectors would provide an important basis for formulating effective plant virus control measures. In this study, we explored the transmission mechanism, pathogenic symptoms, host range and the interactions between virus and aphid vectors of a novel polerovirus from Nicotiana tabacum, named Tobacco yellow virus (TYV). The results indicate that TYV can be transmitted by Myzus persicae in a persistent manner, and cause yellowing and shrinking of tobacco leaves. TYV can successfully infect a total of 9 plant species belonging to 3 families. The effect of TYV-infected tobacco plants on M. persicae behavior and life characteristics was found to be stage-dependent. TYV can directly and indirectly manipulate the performance and life history traits of M. persicae vectors to promote their own transmission. These results provide a certain theoretical basis for the possibility of control strategies of the virus, and the in-depth exploration of the interaction among plant virus, vector aphid and host plants.
GRAPHICAL ABSTRACT
Mutulistic relationship between TYV and aphid vector by attracting aphids feeding and promoting aphids population growth of both winged and wingless individuals. (a) TYV transmission mechanism in aphid and pathogenic symptoms of tobacco. (b) TYV-infected tobacco plants promoted aphids population growth of both winged and wingless individuals. (c) TYV-infected tobacco plants attracted both winged and wingless aphids feeding.
Acknowledgments
This work was supported by Major special projects for green pest control (SCYC202314, 110202201017(LS-01)), and the Agricultural Science and Technology Innovation Program (ASTIP-TRIC04, KLTPMIMT2022-01).
Disclosure statement
No potential conflict of interest was reported by the authors.
Additional information
Funding
Notes on contributors
Yingjie Liu
Dr. Yingjie Liu, Research interests: Pest Monitoring Controlling & Integrated Management, the interaction between plant viruses and vector insects.
Pengjun Xu
Prof. Pengjun Xu, My research aims to understand the coevolution between insects and microorganisms, e.g. interactions between viruses and their insect hosts.
Huijie Dai
Dr. Huijie Dai, Main research fields: Interaction between plant viruses and vector insects; Precise release of natural enemies in facilities vegetables.
Fei Wang
Fei Wang, My research aims to biological control of insect pests.
Hao Zong
Hao Zong, Present job duties: integrated management of agricultural pests.
Hailin Yang
Hailin Yang, My research focuses on the biological control of insect pests.
Lifang Wang
Lifang Wang, Present job duties: integrated management of agricultural pests.
Robert I. Graham
Dr. Robert I. Graham, Research interests:Disease, Health and Physiology: Using model systems to examine the impact of host-diet, host-immunity, and host-density on disease dynamics, disease transmission, and host-resistance.
Xiufang Wang
Dr. Xiufang Wang, Main research fields: Screening of marine microorganisms and their bioactive metabolites, integrated management of agricultural pests.
Yonghui Zhang
Dr. Yonghui Zhang, My research aims to biological control of insect pests.
Guangwei Ren
Prof. Guangwei Ren, Main research fields: insect ecology and pest monitoring controlling & integrated management.
Yonghao Dong
Dr. Yonghao Dong, Research interests: interactions between viruses and their insect hosts, e.g. interactions between insect virus and plant virus in their common host.