棉立枯丝核菌(Rhizoctonia solani)中的一个dsDNA病毒

A DOUBLE STRANDED DNA MYCOVIRUS IN RHIZOCTONIA SOLANI

自从1962年Hollings在栽培蘑菇(Agaricus bisporus)中发现第一例真菌病毒以来,迄今已在100多种真菌中发现了病毒,多数含双链RNA基因组。1972年Bozarth报道在R.solani中发现病毒,但未报道该病毒的理化性质。1975年Finlker在R.solani的一个强致病力菌株中分离到双链RNA病毒,它含3个组分dsRNA。

Isometric particles of 30nm diameter have been found in one virulent isolate of Rhizoctonia solani.The virai nucleic acids was found to be double-stranded DNA by treatment with enzymes. No double-stranded RNA has been detected in the isolate. The present study is the first report of dsDNA mycovirus obtained in plant pathogenic fungi.