Beclin1 restricts RNA virus infection in plants through suppression and degradation of the viral polymerase

Abstract

Plant DNA virus replication is inhibited by autophagy, but the interplay between plant RNA viruses and autophagy is less clear. Here, Li et al. show that turnip mosaic virus infection activates autophagy and that Beclin1, a core autophagy component, binds the viral polymerase and inhibits virus replication.