Figure 1 Negative contrast electron micrograph of particles of Grapevine virus A (GVA). The bar represents 100 nm. (Courtesy of A.A. Castellano.)
Figure 2 Genome organization of Grapevine virus A (GVA) showing the relative position of the ORFs and their expression products. Mt, methyltransferase; Hel, helicase; Pol, polymerase; MP, putative movement protein and CP, capsid protein.
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