中国畜牧兽医

• 生理生化 • 上一篇    下一篇

绵羊瘤胃内纤维降解菌的分离鉴定

那仁图雅,周非帆,杨金丽,侯先志,王海荣   

  1. (内蒙古农业大学动物科学学院,内蒙古呼和浩特  010018

  • 收稿日期:2013-11-14 出版日期:2014-05-20 发布日期:2014-06-25
  • 通讯作者: 王海荣,女,内蒙古人,副教授,硕士生导师,研究方向:动物营养与饲料科学。E-mail:wanghairong97@163.com
  • 作者简介:那仁图雅(1989—),女,内蒙古人,硕士生,研究方向:动物营养与饲料科学。
  • 基金资助:

    国家自然科学基金(31101737)。

Isolation and Identification of the Cellulose-degradingBacteria Strains from Sheep Rumen

NA-Rentuya,ZHOU Fei-fan,YANG Jin-li,HOU Xian-zhi,WANG Hai-rong   

  1. College of Animal ScienceInner Mongolia Agricultural UniversityHohhot 010018China

  • Received:2013-11-14 Online:2014-05-20 Published:2014-06-25

摘要: 试验从蒙古绵羊瘤胃中分离出3株厌氧细菌,通过细菌纤维降解性试验发现3株菌皆具有纤维降解能力;通过革兰氏染色试验发现3株菌均为革兰氏阳性菌;通过生理生化试验和16S rDNA基因序列测定及同源性分析,最终确定分离的3株菌分别为牛链球菌(Streptococcus bovis)、婴儿链球菌(Streptococcus infantarius)和粪肠球菌(Enterococcus faecium),编号为E1、E2和E3。

关键词:

纤维降解菌; 厌氧; 分离; 鉴定

Abstract: Three strains of anaerobic bacteria were isolated from the rumen of the Mongolian sheep. The bacterial cellulose degradation detection test showed that all of the bacteria have fiber degradation ability.All of the bacteria were gram-positive bacteria according to the gram stain test.After the physiological and biochemical test, and determination of 16S rDNA gene sequences and the homology analysis,the three strains of bacteria turned out to be Streptococcus bovis,Streptocococcus infantarius and Enterococcus faecium,and were named as E1,E2 and E3,respectively.

Key words: cellulose-degrading bacteria; anaerobic; isolation; identification