小麦土传病毒在感病小麦细胞中的分布及小麦梭条斑花叶病毒RNA组分

Localization of Wheat Soil-borne Viruses in Infected Wheat and RNA Species of Wheat Spindle StreakMosaic Virus (WSSMV)

四川雅安、陕西长安的土传小麦病毒病由小麦梭条斑花叶病毒(WSSMV)引起,而浙江安吉、新昌、江苏宜兴的病害则由WSSMV和土传小麦花叶病毒(SBWMV)所致。WSSMV和SBWMV可以同时复合侵染同一株小麦,但在病细胞中二者彼此独立分布。我国WSSMV RNA有2个基因组,分子量分别为2.6×10~6和1.5×10~6,与日本小麦黄花叶病毒(WYMV)一致。

Wheat soil-borne virus diseases in Ya'an, Sichuan and Chang'an, Shanxi (PRC) were caused by wheat spindle streak mosaic virus (WSSMV) and those in Anji and Xichang. Zhejiang and Yixing, Jiangsu were caused by complex of WSSMV and soil-borne whoat mosaic virus (SBWMV)infection Both viruses could co-infect the same wheat plant but independently distributed inside infected cells. Chinese WSSMV contained 2 species of RNA with molecular weight of 2.6×10~6 and 1.5×10~6, identical or similar to that of Japanese isolate.