天然产物研究与开发 ›› 2015, Vol. 27 ›› Issue (6): 1003-1006.doi: 10.16333/j.1001-6880.2015.06.011

• 研究简报 • 上一篇    下一篇

土壤来源链霉菌KIB-H91次级代谢产物的分离鉴定

喻明明1,2,苏灿2,马亚团2,颜一军2,黄胜雄2*,薛大权1*   

  1. 1 湖北中医药大学中药资源与中药复方教育部重点实验室,武汉430065;2 中国科学院昆明植物研究所植物化学与西部植物资源持续利用国家重点实验室,昆明 650201
  • 出版日期:2015-06-30 发布日期:2015-07-10

Isolation and Identification of the Secondary Metabolites from a Soil-derived Streptomyces sp. KIB-H91

YU Ming-ming1,2, SU Can2, MA Ya-tuan2, YAN Yi-jun2, HUANG Sheng-xiong2*, XUE Da-quan1*   

  1. 1 Hubei University of Chinese Medicine,Ministry of Education,Key Laboratory of Chinese Medical Resources & Compound Prescription,Wuhan 430065,China;2 State Key Laboratory of Phytochemistry and Plant Resources in West China,Kunming Institute of Botany,Chinese Academy of Sciences,Kunming 650201,China
  • Online:2015-06-30 Published:2015-07-10

摘要: 利用硅胶柱层析和制备型高效液相色谱等方法从来自土壤的一株链霉菌Streptomyces sp. KIB-H91的发酵液中分离得到4种醌类化合物,通过分析其理化性质和波谱数据,分别鉴定为endocrocin(1)、laccaic acid D(2)、sarubicin A(3)和sarubicin B(4),其中,sarubicin B(4)的13C和HMBC核磁数据为本文首次报道。抗菌敏感性试验发现化合物3对大肠杆菌ATCC 8099的最小抑制浓度(MIC)为25 μg/mL,化合物4对枯草芽孢杆菌ATCC 6633的最小抑制浓度为12.5 μg/mL。

关键词: 链霉菌, 次级代谢产物, 抗生素, 醌类

Abstract: Four quinone natural products,endocrocin (1),laccaic acid D (2) and sarubicins A and B (3 and 4),were isolated from the soil-derived actinomycete Streptomyces sp. KIB-H91.Their structures were elucidated on the basis of spectroscopic evidence and comparison with literature reports.Among them,the 13C NMR and HMBC data of compound 4 was reported for the first time in this paper.Sarubicins A and B were the main antimicrobial components with MIC values of 25 μg/mL for 3 against Escherichia coli ATCC 8099 and of 12.5 μg/mL for 4 against Bacillus subtilis ATCC 6633.

Key words: Streptomyces, secondary metabolites, antibiotics, quinones

中图分类号: 

R914.4 R284.2