天然产物研究与开发 ›› 2018, Vol. 30 ›› Issue (7): 1170-1175.doi: 10.16333/j.1001-6880.2018.7.013

• 研究简报 • 上一篇    下一篇

青海湖土壤来源链霉菌L8次级代谢产物的分离与鉴定及抑菌活性研究

王永江1,3,何鑫2,3,罗剑英3,熊子君3,黄建萍3,马亚团3,黄胜雄1,3*,朱艳玲2*   

  1. 1云南大学化学科学与工程学院,昆明 650091;2昆明医科大学海源学院,昆明 650106;3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:2018-08-08 发布日期:2018-08-08
  • 基金资助:

    国家自然科学基金(21502203);云南省应用基础研究面上项目(2016FB021)

Isolation,Identification and Antimicrobial Activity of Secondary Metabolites from a Soil-derived Streptomyces sp.L8 of Qinghaihu

WANG Yong-jiang1,3,HE Xin2,3,LUO Jian-ying3,XIONG Zi-jun3,HUANG Jian-ping3,MA Ya-tuan3,HUANG Sheng-xiong1,3*,ZHU Yan-ling2*   

  1. 1School of Chemical Science and Technology,Yunnan University,Kunming 650091,China; 2Haiyuan College of Kunming Medical University,Yunnan Kunming 650106,China; 3State Key Laboratory of Phytochemistry and Plant Resources in West China,Kunming Institute of Botany,Chinese Academy of Sciences,Yunnan Kunming 650201,China  
  • Online:2018-08-08 Published:2018-08-08

摘要: 采用硅胶柱色谱、凝胶柱色谱、半制备HPLC等分离方法对青海湖干旱土壤来源的链霉菌Streptomyces pactum L8的次级代谢产物进行分离纯化,共得到7个化合物。通过NMR、MS等波谱数据分析,对所得化合物进行结构解析,鉴定为Germicidin B (1)、Germicidin A (2)、1-Acetyl-β-carboline (3)、N-Isobutylacetamide (4)、cyclo-(1-Pro-1-Val) (5)、cyclo-(1-Pro-1-Phe) (6)和3-Hydroxy-3-(2-Hydroxyethyl)-6-(3-Methylbut-2-en-1-yl)indolin-2-one (7),其中化合物7为新化合物。初步抑菌活性筛选发现化合物3对金黄色葡萄球菌有微弱的活性,化合物4对玉米弯孢病菌有弱的抑制作用。

关键词: 链霉菌, 次级代谢产物, 结构鉴定, 抑菌活性

Abstract: Seven compounds were isolated from a soil-derived Streptomyces sp.L8 of Qinghaihu by silica gel column,Sephadex LH-20 chromatography and semi-preparative HPLC.Their structures were identified as Germicidin B (1),Germicidin A (2),1-Acetyl-β-carboline (3),N-Isobutylacetamide (4),cyclo-(1-Pro-1-Val) (5),cyclo-(1-Pro-1-Phe) (6) and 3-Hydroxy-3-(2-Hydroxyethyl)-6-(3-Methylbut-2-en-1-yl)indolin-2-one (7) by NMR and mass spectrometry and 7 was a new compound.Among them,compound 3 displayed weak inhibitory activity against Staphylococcus aureus and compound 4 showed weak antifungal activity against Curvularia lunata (Walk) Boed.

Key words: Streptomyces, secondary metabolites, structure identification, antimicrobial activity

中图分类号: 

R914.4 Q93-3