| a member of a new tospovirus species isolated in italy from wild buckwheat (polygonum convolvulus). | electron microscopy of extracts from diseased polygonum convolvulus plants from piedmont (italy) revealed particles with the morphological features of a tospovirus. sequencing of the full-length small (s) and medium (m) genome segments indicated that the virus is a member of a new tospovirus species provisionally named polygonum ringspot virus. a feature distinguishing it from members of other tospovirus species was the presence of a very short intergenic region on the s segment lacking the pote ... | 2008 | 18953484 |