DESCRIPTION OF VIRUSES

Genus Tobamovirus

Figure Gallery

Figure Gallery

Figure 1 (Left) Model of particle of Tobacco mosaic virus (TMV). Also shown is the RNA as it is thought to participate in the assembly process. (Right) Negative contrast electron micrograph of TMV particle stained with uranyl acetate. The bar represents 100  nm.

Figure 2 Genome organization of Tobacco mosaic virus (TMV). Conserved replicase domains are indicated as shaded boxes. Genomic RNA is capped and is template for expression of the 126 and 183 103 proteins. The 3 distal movement and coat protein ORFs are expressed from individual 3 co-terminal sgRNAs. CP = coat protein; MP = movement protein.

Figure 3 Tobacco mosaic virus (TMV) replication strategy. Straight lines = viral RNA; wavy lines = 126 and 183 103 proteins; hatched boxes = virions; (+) = positive-stranded RNA; (-) = negative-stranded RNA. Replicase complexes are indicated by solid ovals.