1991 年 1991 巻 38 号 p. 63-65
In Kanagawa Prefecture, the virus disease of tomato showing systemic necrotic symptoms was rather widely distributed in 1987-1988. Potatovirus Y-T (PVY-T) was isolated from those tomato plants. In some of those plants, PVY-O was also isolated. Inoculation of PVY-T alone to tomato plants induced systemic necrosis.