ABSTRACT
The plant rhabdovirus group was organized by the ICTV in 1976. Rhabdoviruses occur in many cell types in plants and vectors, and usually they have been reported in phloem and phloem parenchyma cells. One of the criteria for assigning viruses to subgroups is the location of virus maturation and accumulation; however, several plant rhabdoviruses have been detected in both nuclei and cytoplasm. Clover enation disease occurring in northern Italy has been described by Bos and Gran-cini. Crimson clover mosaic virus (CCMV) has been reported in natural infections of crimson clover in Spain. Laburnum yellow vein disease was reported by van Katwijk in Holland, and the virus inducing this disease was described by Plese in Yugoslavia and in England. A bacilliform virus, Pisum rhabdovirus (PRV), was detected in naturally infected green peas (Pisum sativum) by Caner and co-workers.
