A plant NLR receptor activates auxin signaling through Aux/IAAs-ARF19 and YUC8-TIR1/AFBs to promote callose-mediated antiviral defense

to boost auxin production; this further amplifies callose deposition signaling via TIR1/AFB receptors and Aux/IAAs-ARF19-glucan synthase-like (GSL) module, thereby restricting the virus in localized cell death. Our findings provide valuable insights into the mechanism by which plant immune receptors induce phytohormone signaling pathways to combat pathogens.