Naturally Occurring Phenotypic Variants Differing in Symptom Severity of Rice Dwarf Phytoreovirus.
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概要
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Phenotypically distinct rice dwarf Phytoreovirus (RDV) variants which caused varying degree of stunt symptoms were segregated from three field sources after selective transfers using the insect vector. These variants were serologically identical. After the ninth transfer of a field source RDV-W, an extremely severe variant (RDV-W-M) and a mild variant (RDV-W-L) were isolated. Their structural proteins migrated identically in SDS-polyacrylamide gel electrophoresis (PAGE). Migration pattern of genomic dsRNAs in PAGE was different among the variants. Especially the mobility of genome segment 6 (S6) was different between severe and mild variants isolated from each of the three sources. The amount of viral antigen in plants infected with variants was correlated to their severity in symptomatology. These results may suggest that S6 is involved in efficiency of viral multiplication and symptom severity.
- 日本植物病理学会の論文
日本植物病理学会 | 論文
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