トルコギキョウのえそ萎縮症状株から分離された二種のトンブスウイルス

概要

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From diseased leaves of Lisianthus plants [Eustoma grandiflorum (Raf.) Shinn.] with necrotic stunt symptoms Nagano and Shizuoka prefectures in Japan, we isolated two viruses with a diameter of ca. 30nm and tentatively named them Nag-4 and Shiz-1, respectively. Both viruses reproduced necrotic spots on healthy lisianthus plants after mechanical inoculation. Based on virion morphology, double-stranded RNA analysis, molecular mass of the coat protein (CP) and serological tests, the viruses were closely related to species in the genus Tombusvirus. In a comparison of the amino acid sequence of the CP genes, Shiz-1 had high identity with that of Tomato bushy stunt virus-nipplefruit strain (TBSV-Nf), whereas Nag-4 shared less than 87% identity with sequences reported for tombusviruses, suggesting that the virus might be a new species in the genus Tombusvirus. This is the first report of tombusvirus disease on lisianthus in the world.
日本植物病理学会の論文
2006-05-25