Some Properties of a tobacco Ringspot Virus Isolate from South Australia

Abstract

A virus has been isolated from Gladiolus sp. (cv. Spic and Span) in South Australia. This gladiolus virus has been partially purified and could not be distinguished serologically from a North American strain of tobacco ringspot virus although it is symptomologically unlike the type strain. Gladiolus virus was not transmitted by the aphids Myzus persicae (Sulz.). Aphis craccivora (Koch), Aphis gossypii (Glov.), Hyperomyzus lactucae (L.), or Macrosiphum euphorbiae (Thos.). The virus failed to be transmitted through soil infested with the nematode Xiphinema americanum Cobb, but was transmissible through seeds of Glycine max Merr. (cv. Lincoln) and Nicotiana glutinosa L.