CP and infection: We further detected the infection of PVX through Western blot using the PVX CP specific antibody, and our results demonstrated that the accumulation levels of PVX in N. benthamiana leaves infiltrated with PVX-NSs or PVX-N were lower than that in leaves infiltrated with PVX, and the accumulation levels of PVX in N. benthamiana leaves infiltrated with PVX-NS were higher than that infiltrated with PVX (Figure 4B).