天然产物研究与开发 ›› 2019, Vol. 31 ›› Issue (增刊2): 51-57.doi: 10.16333/j.1001-6880.2019.S.007

• 研究论文 • 上一篇    下一篇

一株稀有链霉菌FSG-003 鉴定方法的研究

乌拉木别克·对谢喀德尔,吴恒,刘斯汝 ,陈士恩*,丁功涛*   

  1. 西北民族大学生物医学研究中心中国-马来西亚国家联合实验室生命科学与工程学院,兰州 730030
  • 出版日期:2019-12-28 发布日期:2019-12-30
  • 基金资助:

    中国-马来西亚清真食品国家联合实验室;科技部对发展中国家科技援助项目(KY201501005);中国-马来西亚在清真食品生物技术、检测及标准体系的合作研究,甘肃省国际科技合作项目(17YF1WA166)

Study on the identification method of a rare Streptomyces sp. FSG-003

WULAMUBEK Duiduixiekadeer,WU Heng,LIU Si-ru,CHEN Shi-en*,DING Gong-tao*   

  1. China-Malaysia National Joint Laboratory,Biomedical Research Center,College of Life Science and Engineering,Northwest Minzu Universityr,Lanzhou 730030,China
  • Online:2019-12-28 Published:2019-12-30

摘要: 利用PCR扩增16S rDNA的方法对链霉菌菌株 FSG-003进行系统发育分析,并对其进行生理、生化特性的鉴定。基于已发表链霉菌16S rDNA基因序列,寻找设计特异性引物。根据扩增得到的16S rDNA序列建立系统发育树,用于分析链霉菌 FSG-003与花青蓝链霉菌的亲缘性。结果:生理生化特性鉴定显示:菌株 FSG-003 与花青蓝链霉菌的生理、生化特性较为接近。基于16S rDNA的系统发育分析显示:通过菌株 FSG-003 的 16S rDNA基因测序,利用 MEGA 7.0 进行系统发育分析,发现与 FSG-003与Streptomyces sp.strain SN0280处于同一分枝,亲缘关系最近。

关键词: 链霉菌, PCR-SSCP, 16S rDNA, 系统发育分析

Abstract: The phylogenetic analysis of Streptomyces strain FSG-003 was carried out by PCR amplification of 16S rDNA,and its physiological and biochemical characteristics were identified.Based on the published sequence of the  Streptomyces  16S rDNA gene,we designed amplification primers.A phylogenetic tree was constructed based on the amplified 16S rDNA sequence of FSG-003 for analysis of the genetic relationship between  Streptomyces  sp. FSG-003 and Streptomyces cyanus. In addition,the physiological and biochemical characterization showed that strain FSG-003 and  Streptomyces sphaeroides were close.Phylogenetic analysis using MEGA 7.0 by 16S rDNA sequencing of strain FSG-003 and other Streptomyces showed that FSG-003 and  Streptomyces  sp. strain SN0280 were in the same branch.These results demonstrated that FSG-003 was similar to SN0280 both in genetic composition and function.

Key words: Streptomyces, PCR-SSCP, 16S rDNA, phylogenetic analysis

中图分类号: 

Q939.5