TRGV9 and infection: Knocking down gene expression of SlGRX38 or SlGRX39 also decreased the accumulated PR gene transcripts similarly to that SlGRXC6 (S8 Fig), however, only the knockdown of SlGRXC6 inhibited TYLCV infection but not SlGRX38 and SlGRX39 (S4 Fig), suggesting that the enhanced nuclear egress of V2, but not the decreased expression of PR genes, is the major force contributing to the promoted TYLCV infection in the SlGRXC6-silenced tomato plants.