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A novel mycovirus closely related to viruses in the genus Alphapartitivirus confers hypovirulence in the phytopathogenic fungus Rhizoctonia solani.
- Source :
-
Virology . May2014, Vol. 456-457, p220-226. 7p. - Publication Year :
- 2014
-
Abstract
- Abstract: We report here the biological and molecular attributes of a novel dsRNA mycovirus designated Rhizoctonia solani partitivirus 2 (RsPV2) from strain GD-11 of R. solani AG-1 IA, the causal agent of rice sheath blight. The RsPV2 genome comprises two dsRNAs, each possessing a single ORF. Phylogenetic analyses indicated that this novel virus species RsPV2 showed a high sequence identity with the members of genus Alphapartitivirus in the family Partitiviridae, and formed a distinct clade distantly related to the other genera of Partitiviridae. Introduction of purified RsPV2 virus particles into protoplasts of a virus-free virulent strain GD-118 of R. solani AG-1 IA resulted in a derivative isogenic strain GD-118T with reduced mycelial growth and hypovirulence to rice leaves. Taken together, it is concluded that RsPV2 is a novel dsRNA virus belonging to Alphapartitivirus, with potential role in biological control of R. solani. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00426822
- Volume :
- 456-457
- Database :
- Academic Search Index
- Journal :
- Virology
- Publication Type :
- Academic Journal
- Accession number :
- 96325419
- Full Text :
- https://doi.org/10.1016/j.virol.2014.03.029