从月季品种金玛丽、曼海姆、杏花村、梅郎口红的根部肿瘤组织中纯化了9株分离物，根据其在MW选择性培养基上的单菌落形态初步判断其为根癌土壤杆菌。
Nine isolates were purified from the crown galls on rose plants and were characterized as Agrobacterium tumefaciens strains according to the colony morphology on the selective MW medium .
梅郎