Pepper mottle virus (PepMoV) is a destructive pathogen that infects various solanaceous plants, including pepper, bell pepper, potato, and tomato.

This review summarizes what is known about the molecular characteristics of PepMoV and its interactions with host plants. Comparisons of symptom variations caused by PepMoV isolates in plant hosts indicate a possible relationship between symptom development and genetic variation. Researchers have investigated the PepMoVā€“plant pathosystem to identify effective and durable genes that confer resistance to the pathogen.

As a result, several recessive PVR or dominant PVR resistance genes that confer resistance to PepMoV in pepper have been characterized. However, the molecular mechanisms underlying the interaction between these resistance genes and PepMoV-encoded genes remain largely unknown. The understanding of the molecular interactions between PepMoV and host plants should be increased by reverse genetic approaches and comprehensive transcriptomic analyses of both the virus and the host genes.

Read the complete research at

Fang, Miao & Yu, Jisuk & Kim, Kook-Hyung. (2021). Pepper Mottle Virus and Its Host Interactions: Current State of Knowledge. Viruses. 13. 1930. 10.3390/v13101930.