ABSTRACT
The bromovirus group was compiled by the ICTV in 1971. Viruses in this group have been transmitted experimentally by beetles, and the type member, brome mosaic virus, is also transmitted by spores of wheat stem rust, leaf rust, and aphids. Properties of bromoviruses have been reviewed by Lane, Bancroft and Home, Francki and co-workers, and by several authors in Volume 1 of the book Plant Viruses. Lane has observed that bromoviruses have not caused economically significant diseases. Bromoviruses which have been investigated cytologically induce crystalline inclusions of virus particles in the cytoplasm. These inclusions were suggested to be a main characteristic of the bromovirus group. Three bromoviruses have been reported in natural infections of legumes: broad bean mottle, Cassia yellow blotch, and cowpea chlorotic mottle. The virus was classified as a member of the bromovirus group by Harrison and coworkers and Wildy.
