PPBP and infection: Additionally, when YFPc was directly fused to the N‐terminus of the TGB1 ORF within the BSMV infectious cDNA to yield BSMVYFPc–TGB1, co‐expression with YFPn‐ARI8 and BSMVYFPc–TGB1 generated YFP fluorescence (Figure 2D), similar to the PD localization of ARI8 observed during BSMV infection (Figure 2A; Figure S4, Supporting Information).