Clover Primary Leaf Necrosis Virus, a Strain of Red Clover Necrotic Mosaic Virus. A. L. N. Rao, Postdoctoral Fellow, Department of Plant Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5. C. Hiruki, Professor, Department of Plant Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5. Plant Dis. 69:959-961. Accepted for publication 29 March 1985. Copyright 1985 The American Phytopathological Society. DOI: 10.1094/PD-69-959.

Clover primary leaf necrosis virus was identified as a strain of red clover necrotic mosaic virus (RCNMV-C) on the basis of host range, serology, nucleic acid, and coat protein analyses. RCNMV-C was serologically identical to RCNMV-48 but not to other isolates of virus examined. Under denaturing conditions, RCNMV-C RNA separated into two components whose electrophoretic mobilities were indistinguishable from those of RCNMV-A. The molecular weight of the major polypeptide of RCNMV-C was about 41,000, whereas that of the minor one was about 39,000, which is believed to be a degradation product of the coat protein.

Keyword(s): dianthoviruses.