Clover yellow mosaic virus

rdf:langString Clover yellow mosaic virus

rdf:langString Potexvirus

rdf:langString Clover yellow mosaic virus

rdf:langString *Pea mottle virus

rdf:langString Clover yellow mosaic virus (ClYMV) is a plant pathogenic virus in the genus Potexvirus and the virus family Alphaflexiviridae. Its flexous rod-shaped particles measure about 539 nm in length. Like other members of the Potexvirus genus, ClYMV 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 7015 nucleotides long. No insect vector is known. This virus is transmitted by mechanical inoculation, sometime by seeds and by dodder (Cuscuta campestris). Potexviruses make banned inclusions made up of layers of parallel virus particles. These inclusions can be seen in the light microscope in leaf strips of infected plant tissue stained with Azure A or Orange-Green stains. For many potexviruses these inclusions can be disrupted during the staining procedures. The banded inclusions of ClYMV (Fig.1) however, remain stable and therefore can be diagnostic. Antiserum is available for this virus and, as mentioned above, so is sequence data. Figure 1. Banned inclusions body (I) of Clover yellow mosaic virus in Vicia faba cells, stained with Azure A.(N = nucleus)