A plant viral effector subverts FER-RALF1 module-mediated intracellular immunity.

ABSTRACT: The receptor-like kinase FERONIA (FER) is a prominent member of the Catharanthus roseus RLK1 (CrRLK1L) family, functioning as a modulator of immune receptor kinase complex formation in response to rapid alkalinization factors (RALFs). Typically, FER recognizes mature extracellular RALFs to combat bacterial and fungal infections. However, any role of the FER-RALF signalling cascade in plant viral infections remains unexplored. Here, we used turnip mosaic virus (TuMV), an important member of the genus Potyvirus, and the host Nicotiana benthamiana as a model system to explore the role of the FER-RALF cascade in plant-virus interactions. RALF1 from N. benthamiana (NbRALF1) positively regulated host resistance to inhibit TuMV infection. Co-expression studies showed that this process does not in

SUBMITTER: Rui P 

PROVIDER: S-EPMC12205892 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature