福建农业学报 ›› 2002, Vol. ›› Issue (3): 174-177.

• 动物科学 • 上一篇    下一篇

大黄鱼副溶血弧菌的分离、鉴定及致病力分析

许斌福1, 林能锋1, 杨金先1, 俞伏松1, 董传甫2, 林天龙1   

  1. 1. 福建省农业科学院鱼病研究中心, 福建, 福州, 350003;
    2. 华中农业大学水产学院, 湖北, 武汉, 430070
  • 收稿日期:2002-02-15 出版日期:2002-09-15 发布日期:2002-09-15
  • 基金资助:
    国家863计划(2001AAb22050)和福建省科技厅青年基金资助项目(2000Z150).

Isolation,identification and pathogenicity analysis of Vibrio parahaemolyticus from Pseudosciaena crocea

XU Bin-fu1, LIN Neng-feng1, YANG Jin-xian1, YU Fu-song1, DONG Chuan-fu2, LIN Tian-long1   

  1. 1. Center of Fish Disease Control, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350003, China;
    2. Fisheries College, Huazhong Agriculture University, Wuhan, Hubei 430070, China
  • Received:2002-02-15 Online:2002-09-15 Published:2002-09-15

摘要: 于2000年7月,从福建省宁德地区东吾洋海区患败血病的大黄鱼体内分离到1种优势菌,根据人工感染证实为病原菌,其半数致死剂量为1.0×107cfu·ml-1;经43项形态、生理、生化特性测定,鉴定为副溶血弧菌Vibrio parahaemolyticus。其主要特性为革兰氏阴性,弧状,极生单鞭毛,氧化酶阳性,发酵型,精氨酸双水解酶、尿素酶为阴性,赖氨酸脱羧酶、鸟氨酸脱羧酶为阳性,VP为阴性,吲哚为阳性、不产生H2S,利用葡萄糖、甘露醇产酸,不利用肌醇、蔗糖,神奈川溶血活性(KP)为阴性,对O/129等高度敏感。

关键词: 大黄鱼, 副溶血弧菌, 致病力

Abstract: After cultivation at 25℃ in 2216E agar medium, a strain of preponderant bacteria was isolated from the body of Pseudosciaena crocea affected by epidemic septicemia. The Pseudosciaena crocea were collected from Ningdeng City, Fujian Province in July 2000.Artificial infection proved that the bacterium isolated was the pathogen of the disease, the LD50 was 1.0×107 cfu·ml-1.The isolate was tested for 43 items of morphological, physiological and biochemical characteristics and classified as Vibrio parahaemolyticus.The bacteria were gram negative, curved rods, zymolysis type, with single polar flagellum.Oxidase, indole, lysine and ornithine decarboxylase tests were positive, and negative for arginine dihydrolase, urease, Voges-Proskauer, Kanagawa Phenomenon test. Some of the other characteristics, such as utilization of glucose and mannitol, negative for inositol and sucrose, utilization and production of hydrogen sulfide, sensitivity to 0/129, were also proved.

Key words: Pseudosciaena crocea(Richardson), Vibrio parahaemolyticus, Pathogenicity

中图分类号: 

  • S85