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A Strain of Peanut Mottle Virus Seedborne in Bambarra Groundnut. R. H. Li, Graduate Assistant, Plant Pathology Department, The University of Florida, Gainesville 32611. F. W. Zettler, M. S. Elliott, M. A. Petersen, P. E. Still, C. A. Baker, and G. I. Mink. Professor, Senior Biological Scientists, Postdoctoral Scientist, Plant Pathology Department, The University of Florida, Gainesville 32611, and Professor, Plant Pathology Department, Washington State University, Prosser 99350. Plant Dis. 75:130-133. Accepted for publication 4 July 1990. Copyright 1991 The American Phytopathological Society. DOI: 10.1094/PD-75-0130.

Peanut mottle virus (PMoV) was detected in nine of 95 bambarra groundnut (Voandzeia subterranea) plants grown in Florida from seed produced in Africa. This virus (PMoV-VS) induced systemic mosaic symptoms in cultivars of peanut (Arachis hypogaea), lima bean (Phaseolus limensis), and pea (Pisum sativum). PMoV-VS induced symptoms in differential bean (Phaseolus vulgaris) cultivars similar to those noted for an isolate of PMoV from the United States. PMoV-VS and PMoV induced very similar scroll, pinwheel, and laminated aggregate inclusions in infected leaf tissues. In immunodiffusion tests with PMoV-VS antiserum, precipitin lines of PMoV-VS and PMoV fused without spur formation. In reciprocal tests, homologous lines of PMoV spurred over those of PMoV-VS. Cross-reactions between PMoV-VS and PMoV were noted in reciprocal direct double-antibody-sandwich enzyme-linked immunosorbent assays and western blot tests.

Keyword(s): bean common mosaic virus, potyvirus group monoclonal antibody.