Papaya mosaic virus

Papaya mosaic virus (PapMV) is a plant pathogenic virus in the genus Potexvirus and the family Alphaflexiviridae. PapMV is a filamentous, flexuous rod, 530 nm in length. The virus is a monopartite strand of positive-sense, single-stranded RNA surrounded by a capsid made for a single viral encoded protein. The genome has been completely sequenced and is 6656 nucleotides long. It is transmitted by mechanical inoculation. No insect vector is involved and it is not transmitted in seeds. Mature virions form banded inclusions that can be seen in leaf strips of infected plants when stained with either the Orange-Green protein stain or the Azure A nucleic acid stain.

from Wikipedia