Magnaporthe oryzae chrysovirus 1 strain D confers growth inhibition to the host fungus and exhibits multiform viral structural proteins.

A Japanese isolate of Magnaporthe oryzae is infected by Magnaporthe oryzae chrysovirus 1-D (MoCV1-D), which is classified in cluster II of the family Chrysoviridae. The genome of MoCV1-D consists of five dsRNAs. dsRNAs 1-4 show high identity with those of related MoCV1 viruses, whereas dsRNA5 shows relatively low identity and is sometimes deleted during virus propagation.

Chrysoviruses in .

, the fungus that causes rice blast, is the most destructive pathogen of rice worldwide. A number of mycoviruses have been identified. These include viruses 1, 2, and 3 (MoV1, MoV2, and MoV3) belonging to the genus, , in the family, ; partitivirus 1 (MoPV1) in the family, ; chrysovirus 1 strains A and B (MoCV1-A and MoCV1-B) belonging to cluster II of the family, ; a mycovirus related to plant viruses of the family, ( virus A); and a (+)ssRNA mycovirus closely related to the ourmia-like viruses ( ourmia-like virus 1).