VIEW ARTICLE

Physiology and Biochemistry

Characterization and Variability of Strains of Southern Bean Mosaic Virus. R. A. Valverde, Graduate assistant, Department of Plant Pathology, University of Arkansas, Fayetteville 72701; J. P. Fulton, professor, Department of Plant Pathology, University of Arkansas, Fayetteville 72701. Phytopathology 72:1265-1268. Accepted for publication 22 March 1982. Copyright 1982 The American Phytopathological Society. DOI: 10.1094/Phyto-72-1265.

A strain of southern bean mosaic virus (SBMV) is described that infects bean cultivars with resistance to the type strain of this virus. This strain gave rise to three additional strains. The host ranges, physical properties, sedimentation coefficients, serology, nucleic acid, protein, and beetle transmission characteristics are compared with the SBMV-type strain. In most characteristics all strains are similar. Serology distinguishes SBMV-type from the other four. All five can be distinguished on the basis of host range reaction.