【摘要】 通过对甘肃灵台县和上海市奉贤县水产养殖场患病鳖病原菌的分离、培养、鉴定，两地菌株均为嗜水气单胞菌。经过对该菌形态学、革兰氏染色、21项生理生化特性比较，以及两菌株毒力比较和动物感染试验，表明甘肃菌株（G－97－7）和上海菌株（S－96－10）是引起鳖白点病（疖疮）、穿孔病（鳖甲溃烂）和出血等细菌性疾病的原发性致病菌。该病菌广泛地存在于自然界水体中。更多还原

【Abstract】 Diseased Trionyx sinensis from Lingtai county of Gansu province and Fengxian county of Shanghai city were isolated, incubated and identified that the bacteria from the two places were Aeromonas hydrophila. Comparing of morphology, Gramstain and 21 physiobiochemistry and characteristics, virulense between the two strains, and animal infection testing indicated that bacterial diseases o’ whiteplot, crest rot, blood out of Trionyx sinensis were caused by Gansu G-97-7 strain and Shanghai S-96-10 strain. Aeromonas hydrophila distributed widely in natural waters.更多还原