journal6 ›› 2008, Vol. 29 ›› Issue (2): 92-95.

• 生物资源 • 上一篇    下一篇

一株环己酮高效降解菌株的筛选及鉴定

  

  1. (吉首大学生物资源与环境科学学院,湖南 吉首 416000)
  • 出版日期:2008-03-25 发布日期:2012-05-25
  • 作者简介:何倩(1979-),女,湖南益阳人,吉首大学生物资源与环境科学学院硕士研究生,主要从事环境和微生物生态学研究

Screening and Identification of a High-Efficiency Cyclohexanone-Degrading Strain JDM-3-11

  1. (College of Biological Resources and Environmental Science,Jishou University,Jishou,416000,Hunan China)
  • Online:2008-03-25 Published:2012-05-25

摘要:自岳阳巴陵石化公司环己酮生产车间总出水口污泥中分离得到一株能快速降解环己酮的菌株,菌号为JDM-3-11.通过形态观察、生理生化特征检测和基于16S rRNA基因序列的系统发育分析,初步鉴定其为赤红球菌(Rhodococcus ruber)的一个菌株.当环己酮的质量浓度为2 000 mg/L时,在温度为30 ℃,转速为150 r/min,pH值为7的条件下,70 h内该菌株对环己酮的降解率达到94.79%.

关键词: 环己酮, 生物降解, 16S rRNA基因序列, 赤红球菌(Rhodococcus ruber)

Abstract: This paper reported screening a strain numbered JDM-3-11 for effectively degrading cyclohexanone,which was acclimated and isolated from the sludge from Baling Petrochemical Company in Yueyang.The strain was tentatively identified as Rhodococcus ruber by bacterial morphological observation,physiological and biochemical test,and 16S rRNA sequences analysis.The study showed that when the content of cyclohexanone was 2000 mg/L,the temperature was 30 ℃,the rotate speed was 150 r/min and pH was 7,the cyclohexanone biodegrading rate of strain JDM-3-11 within 70 hours reached 94.79%.

Key words: cyclohexanone, biodegradation, 16S rRNA gene sequence, Rhodococcus ruber

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