VIEW ARTICLE

Vector Relations

Anomalies in Serological and Vector Relationships of MAV-like Isolates of Barley Yellow Dwarf Virus from Australia and the U.S.A.. R. M. Lister, Plant Research Institute, Department of Agriculture and Rural Affairs, Burnley Gardens, Swan Street, Burnley, Victoria 3121, Australia, Present address: Department of Botany and Plant Pathology, Purdue University, West Lafayette, IN 47907; R. J. Sward, Plant Research Institute, Department of Agriculture and Rural Affairs, Burnley Gardens, Swan Street, Burnley, Victoria 3121, Australia. Phytopathology 78:766-770. Accepted for publication 29 December 1987. Copyright 1988 The American Phytopathological Society. DOI: 10.1094/Phyto-78-766.

Some barley yellow dwarf virus isolates obtained from cereal plants in Victoria, Australia, during 1985–1986 were serologically similar to the MAV isolate of W. F. Rochow, but distinct from it in being readily transmissible by the aphid Rhopalosiphum padi. Most serological comparisons used the Purdue culture of Rochow’s MAV, initially obtained from Cornell, but maintained by transfer by Sitobion avenae for 6 yr. However, detailed examination of the Purdue culture with monoclonal antibodies revealed that a change in its serological behavior had occurred during culture, although efficient transmission by S. avenae and not by R. padi had been maintained.