中国畜牧兽医

• 疾病防治 • 上一篇    下一篇

鱼源山梨醇发酵阳性温和气单胞菌的分离与鉴定

李旭,丁楚楚,李雪,石慧,陈业翔,胡秀彩,朱爱华,吕爱军   

  1.  (江苏师范大学生命科学学院, 江苏徐州 221116)
  • 收稿日期:2013-09-22 出版日期:2014-04-20 发布日期:2014-05-27
  • 通讯作者: 吕爱军(1973—),男,内蒙古人,博士,副教授,研究方向:水生动物微生物学。E-mail:lajand@126.com
  • 作者简介:李旭(1992—),男,江苏人,学士,研究方向:水产动物微生物学。
  • 基金资助:

    国家自然科学基金(31272692、30800847)。

Isolation and Identification of Sorbitol-positive Aeromonas sobria from Fish

LI Xu, DING Chu-chu, LI Xue, SHI Hui, CHEN Ye-xiang, HU Xiu-cai, ZHU Ai-hua, LV Ai-jun   

  1.  (School of Life Sciences, Jiangsu Normal University, Xuzhou 221116, China)
  • Received:2013-09-22 Online:2014-04-20 Published:2014-05-27

摘要: 从鲫鱼肠道中分离出1株细菌,暂时编号为SR-1,进行细菌形态学观察、理化特征、16S rDNA序列分析及药敏试验等研究,结果表明SR-1菌株为山梨醇发酵阳性的温和气单胞菌;PCR扩增SR-1菌株的16S rDNA序列为1509 bp;BLAST比对分析结果表明SR-1菌株与温和气单胞菌(Aeromonas sobria)亲缘关系最近,序列同源性为99.87%~100%;药敏试验结果显示SR-1菌株对阿奇霉素、氯霉素、四环素、诺氟沙星、头孢噻肟、头孢克肟等药物敏感。

关键词: 鲫鱼; 温和气单胞菌; 分离鉴定; 药敏试验; 系统进化树

Abstract: A bacteria was isolated from the intestine of Carassius auratus and temporarily named as SR-1 strain with sorbitol-positive character. It was identified as Aeromonas sobria by morphological, physiological, biochemical characteristics, drug sennsitivity test, 16S rDNA sequence and phylogenetic tree analysis. Further the 16S rDNA sequence of SR-1 was amplified by PCR method and the results showed that the size of fragment was 1509 bp. Phylogenetic tree analysis showed that SR-1 strain had the highest similarity to Aeromonas sobria of 99.87% to 100%. Drug sensitivity test results revealed that SR-1 was sensitive to azithromycin, chloroamphenicol, tetracycline, norfloxacin, cefotaxime, cefixime and so on.

Key words: Carassius auratus; Aeromonas sobria; isolation and identification; drug sensitivity test; phylogenetic tree