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1986年3月26日日本新泻县赠送一批树苗(其中樱花苗700株、葡萄苗135株)给南京中山植物园。货物空运到南京后,经初步检查,发现有典型的樱花根头癌肿病。该病由Agrobacterium tumefenciens(Smith et Towns)Conn.菌引起。目前已知该种细菌有4个生物型,寄主范围很广,据Decleene与Deley接种结果,该菌的4个不同菌株就可侵染93科331属643种植物。过去,检疫樱花根癌症的主要根据是病株的外部症状。这
March 26, 1986 Niigata prefecture, Japan donated a batch of saplings (including Sakura saplings 700, grape seedlings 135) to Nanjing Zhongshan Botanical Garden. After the air cargo to Nanjing, after a preliminary inspection, found a typical Sakura root swollen disease. The disease is caused by Agrobacterium tumefenciens (Smith et Towns) Conn. It is known that there are 4 biotypes of this bacterium and the host range is very wide. According to the results of inoculation by Decleene and Deley, 4 different strains of this bacterium can infect 93 genera and 643 species of 93 genera in 93 families. In the past, the main basis for quarantine Sakura root cancer was the external symptoms of diseased plants. This