High-frequency occurrence of virus-like particles with double-stranded RNA genome in Fusarium poae |
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| Authors: | Csaba Fekete Gabor Giczey István Papp László Szabó László Hornok |
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| Institution: | Agricultural Biotechnology Center, 2101 Gödöllõ, PO Box 411, Hungary |
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| Abstract: | Abstract 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. |
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| Keywords: | Double-stranded RNA Fusarium poae Mycotoxin-producing fungus Virus-like particle |
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