›› 2009, Vol. 36 ›› Issue (5): 149-151.

• 疾病防治 • 上一篇    下一篇

猪化脓隐秘杆菌的分离与鉴定

鲁杏华,何世成,谈志祥,刘道新,邱立新,范仲鑫,唐小明,黄建龙,王洪冰   

  1. (湖南省动物疫病预防控制中心, 长沙 410007)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-05-20 发布日期:2009-05-20
  • 通讯作者: 何世成

Isolation and Identification of Arcanobacterium Pyogenes of Swine

LU Xing-hua, HE Shi-cheng, TAN Zhi-xiang, LIU Dao-xin, QIU Li-xin, FAN Zhong-xin,   

  1. (The Animal Disease Control Center of Hunan Province, Changsha 410007, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-05-20 Published:2009-05-20
  • Contact: HE Shi-cheng

摘要: 从一例肝、肺化脓性结节,脾出血性肿大的病猪体内分离到一株革兰氏阳性、细长、形态不规则的杆菌,该菌在TSA平板、普通绵羊血琼脂、巧克力平板上生长缓慢,在普通绵羊血琼脂上呈α-溶血。对该菌的16S rDNA进行PCR扩增、测序、比较,结果显示该菌与化脓隐秘杆菌的16S rDNA有99%的同源性,进一步用API生化鉴定,结果也与其相符。该菌在24~52 h内100%致死小白鼠,腹腔接种新西兰兔,接种兔72 h内死亡,表明该菌为致病性细菌。

关键词: 化脓隐秘杆菌; 16S rDNA; PCR; 生化鉴定

Abstract: A bacterial which was Gram positive, slenderness and irregularity in appearance were isolated from a pig, its liver had purulence nodus and lungs and the spleen were haematocele. The isolated bacterium grew slowly in BSA, sheep’s blood agar and chocolate agar, and showed α-haemolysis in sheep’s blood agar. The results of 16S rDNA PCR sequence and API biochemistry identification showed that the isolated bacterium was Arcanobacterium pyogenes. The Arcanobacterium pyogenes caused 100% mouse death in 24~52 h, and cause rabbit death in 72 h by enterocoelia innoculation, it showed that it was virulent bacterium.

Key words: Arcanobacterium pyogenes; 16S rDNA; PCR; biochemistry identification

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