Double-Stranded RNA Mycovirus from Fusarium graminearum

Double-stranded RNA mycovirus from Fusarium graminearum.

Double-stranded RNA (dsRNA) viruses in some fungi are associated with hypovirulence and have been used or proposed as biological control agents. We isolated 7.5-kb dsRNAs from 13 of 286 field strains of Fusarium graminearum isolated from maize in Korea. One of these strains, DK21, was examined in more detail. This strain had pronounced morphological changes, including reduction in mycelial grow...

Complete Genome Sequence of a Fusarium graminearum Double-Stranded RNA Virus in a Newly Proposed Family, Alternaviridae

We describe here a double-stranded RNA mycovirus, termed Fusarium graminearum alternavirus 1 (FgAV1/AH11), from the isolate AH11 of the phytopathogenic fungus F. graminearum Phylogenetic analysis showed that FgAV1/AH11 belongs to a newly proposed family, Alternaviridae This is the first report of a mycovirus in the family Alternaviridae that infects F. graminearum.

Semi-conservative transcription in particles of a double-stranded RNA mycovirus.

During transcription in vitro catalysed by the virion RNA polymerase of Aspergillus foetidus virus AfV-S in the presence of tritiated UTP, the virus double-stranded RNA becomes labelled in one strand, which has the same sequence as the single-stranded RNA transcripts produced. Most of the label incorporated into double-stranded RNA could be chased into single stranded RNA by further reaction wi...

Double-stranded RNA poses puzzle.

Microglia Recognize Double-Stranded RNA