Showing papers on "Mycovirus published in 2003"
TL;DR: Results indicate that mycovirus infection confers hypovirulence to the fungal host.
Abstract: Botrytis cinerea CCg425 contains a 33-nm isometric mycovirus whose genome is a 6.8-kb double-stranded RNA (dsRNA) molecule. Virulence bioassays, performed by direct plug mycelial inoculation on bean plant leaves, showed that B. cinerea CCg425 displays less fungal aggressivity than B. cinerea CKg54, a virulent fungal strain that is not infected by dsRNA mycoviruses. B. cinerea CCg425 also showed lower laccase activity and conidiation rate than B. cinerea CKg54. Furthermore, infection of B. cinerea CKg54 with viral particles purified from B. cinerea CCg425 resulted in diminished virulence of the infected fungus. Collectively, our results indicate that mycovirus infection confers hypovirulence to the fungal host.
92 citations
TL;DR: Genomic structure and organization and the derived amino acid sequence of RdRp and helicase domain were similar to those of tymoviruses, a plant virus group.
62 citations
TL;DR: The deduced amino acid sequence shows some similarity to those of certain positive-strand RNA viruses, but the genome organization is characteristic and distinct from those of other known fungal RNA viruses.
50 citations
TL;DR: Pairwise sequence comparisons of the deduced amino acid sequences encoded by CmRV as well as phylogentic analysis indicated that it is more closely related to the totiviruses that infect filamentous fungi than to those infecting protozoa, yeast and smut fungi.
33 citations
16 citations