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上海郊区青菜病毒病连续几年流行,对生产威胁很大,急切要求搞清病原种类和传播途径,以便有的放矢地进行防治。市郊青菜上的病毒种类,目前分离到的有烟草花叶病毒(群)、芜青花叶病毒和黄瓜花叶病毒三类。本文仅报导对广泛感染青菜的烟草花叶病毒(实际上是烟草花叶病毒群中一成员)的特征特性及传播途径的研究结果。一、材料与方法毒源:青菜病株采自上海市郊菜区,采集时多选有不同类型症状的植株,经诊断初步确认为烟草花叶病毒(群)并证实无其他病毒复合感染后,用于试验;进一步深入的研
Shanghai suburbs of vegetables epidemic disease epidemic for several years in succession, a great threat to the production, eager to clarify the types of pathogens and transmission, in order to targeted prevention and treatment. Suburban vegetables on the types of viruses currently isolated tobacco mosaic virus (group), turnip mosaic virus and cucumber mosaic virus three categories. This article reports only the results of studies on the characteristics and transmission of Tobacco mosaic virus (actually a member of the tobacco mosaic virus) that is widely infected with Brassica. I. Materials and Methods Source of Toxicity: The diseased cabbage was taken from the suburbs of Shanghai and collected more plants with different types of symptoms. After the diagnosis was initially confirmed as the tobacco mosaic virus (group) and confirmed that no other viruses were infected, For testing; further research