High-frequency occurrence of virus-like particles with double-stranded RNA genome in Fusarium poae.
Fifty-five geographically different strains of Fusarium poae were assayed for the presence of extrachromosomal nucleic acid elements. All strains were found to harbour double-stranded RNA (dsRNA) elements and encapsidated virus-like particles (VLP). There were great individual differences in dsRNA patterns of the various strains, but numbers and sizes characteristic for a given isolate remained unchanged after repeated subculturing of the fungi. Morphological alterations or signs of degeneration were not observed in dsRNA-containing isolates. This is the first report on the ubiquitous occurrence of dsRNAs in a hyphomycete fungus species.
Fekete
C
C
Agricultural Biotechnology Center, Gödöllö, Hungary.
Giczey
G
G
Papp
I
I
Szabó
L
L
Hornok
L
L
D005670:Fusarium / Q000821:virology*; D016679:Genome, Viral; D012328:RNA Viruses / Q000737:chemistry / Q000302:isolation & purification*; D012330:RNA, Double-Stranded / Q000032:analysis*; D012367:RNA, Viral / Q000032:analysis*; D014771:Virion / Q000648:ultrastructure
D012330:RNA, Double-Stranded; D012367:RNA, Viral