摘要
在辽宁西丰烟草上发现一种丛枝病,病株严重矮化,侧枝丛生,叶片变小,病株不能开花,即便开花,花瓣也变成叶片状。嫁接可传播。烟蚜和大青叶蝉不能传播。取田间病株韧皮部组织和花瓣制超薄切片,电镜下均观察到各种形态的类菌原体,健株中未见到类似物质,室内嫁接显症的烟草病株韧皮部组织内,也观察到相似的类菌原体。初步认为,这种病害是烟草丛枝类菌原体病。
In 1988-1989,a disease of tobacco plant,showing the symptoms of stunting and witches'-broom, was observed in xifen county,Liaoning Province.The disease was readily transmitted from infected plants by grafting to healthy Nicotiana tabacum cv.G28,but not by Tettigoniella viridis and Myzus persicae.Elec- tron microscopy revealed the presence of various types of mycoplasmalike Organisms (MLOs) in the sieve tubes and parenchymous cells of the diseased plants,but not in the control (healthy) plants.
出处
《中国烟草》
CSCD
1991年第4期43-45,共3页
China Tobacco
