VIEW ARTICLE

Etiology

Identification of Three Serotypes of Sowbane Mosaic Virus. M. Zebzami, Laboratoire de Virologie, Complexe Horticole, B. P. 438, Agadir, Morocco, Current address: Station Centrale de Recherches sur les Agrumes, El-Menzeh, Km. 9 Nord de Kenitra, Morocco; B. E. L. Lockhart(2), and J. H. Hill(3). (2)Complexe Horticole, Agadir, Morocco/Department of Plant Pathology, University of Minnesota, St. Paul 55108; (3)Department of Plant Pathology, Seed and Weed Sciences, Iowa State University, Ames 50011. Phytopathology 77:571-574. Accepted for publication 24 September 1986. Copyright 1987 The American Phytopathological Society. DOI: 10.1094/Phyto-77-571.

No serological differences have been reported previously among isolates of sowbane mosaic virus (SoMV) described from several countries. In comparative immunodiffusion tests using a North American and two Moroccan SoMV isolates and their respective antisera, three distinct serotypes were defined. The two Moroccan SoMV serotypes did not differ in the molecular weights of their capsid protein subunits (32 kDa), and only minor biological differences between the three SoMV isolates were detected by using Atriplex hortensis, A. semibacata, Chenopodium album, C. amaranticolor, and C. quinoa as differential hosts.