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(A) Transmission electron micrographs of purified PVX nanoparticles (personal unpublished data). Bars: 100 nm. (B) Schematic diagram of PVX genome, genomic and subgenomic RNAs (gRNA and sgRNA, respectively), and the proteins they encode. RdRP: RNA-dependent RNA Polymerase; TGBp1/p2/p3: Triple Gene Block proteins; CP: Coat Protein. Arrows represent the subgenomic promoters. The 5′ cap and the polyA tail are indicated.
