天然产物研究与开发 ›› 2016, Vol. 28 ›› Issue (3): 331-324.doi: 10.16333/j.1001-6880.2016.3.002

• 研究论文 • 上一篇    下一篇

植物内生链霉菌KIB-271抗植物病原真菌活性成分研究

董淼1,2,杨凤仙2,罗剑英2,黄胜雄2,马亚团2,3*,李蓉涛1*   

  1. 1 昆明理工大学生命科学与技术学院,昆明650500;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;3 西北农林科技大学理学院,杨凌712100
  • 出版日期:2016-03-30 发布日期:2016-04-07

Secondary Metabolites from an Endophytic Streptomyces sp. KIB-271 and Their Anti-fungus Activity

DONG Miao1,2,YANG Feng-xian2,LUO Jian-ying2,HUANG Sheng-xiong2,MA Ya-tuan2,3*,LI Rong-tao1*   

  1. 1 Kunming University of Science and Technology,The Faculty of Life Science and Technology,Kunming 650500,China;  2 State Key Laboratory of Phytochemistry and Plant Resources in West China,Kunming Institute of Botany,Chinese Academy of Sciences,Kunming 650201,China; 3 College of Science,Northwest A&F University,Yangling 712100,China
  • Online:2016-03-30 Published:2016-04-07

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杜鹃花科植物的一株内生链霉菌Streptomyces sp. KIB-271的发酵液中分离得到4种戊二酰亚胺类化合物,通过分析其理化性质和波谱数据,分别鉴定为cycloheximide(1)、iso-cycloheximide(2)、2,6-二酮-4-[(E)-2′-((3″S,5″S)-3″,5″-二甲基-2″-酮-环亚己基)]-乙基哌啶(3)和2,6-二酮-4-[(E)-2′-((3″R,5″S)-3″,5″-二甲基-2″-酮-环亚己基)]-乙基-哌啶(4),其中,4为首次从天然产物中分离得到。抗菌试验研究表明化合物1对多株植物病原真菌具有明显的抗菌活性,可能是Streptomyces sp. KIB-271代谢产物的主要活性物质之一。

关键词: 植物内生菌, 次级代谢产物, 波谱数据, 抗菌活性

Abstract: Four heterocyclic glutarimide antibiotics,namely cycloheximide (1), iso-cycloheximide (2),4-[2′-(3″(S),5″(S)-3″,5″-dimethyl-2″-oxocyclohexylidene) ethyl]piperidine-2,6-dione (3),and 4-[2′-(3″(R),5″(S)-3″,5″-dimethyl-2″-oxocyclohexylidene) ethyl]piperidine-2,6-dione (4),were isolated from the endophytic actinomycete Streptomyces sp.KIB-271.Their structures were identified through mass spectrometry and NMR experiments.Among them,compound 4 was reported for the first time as a natural product.In the antimicrobial experiments,1 exhibited obvious antifungal activity in vitro against most of the tested fungus,and was considered as one of the main antimicrobial constituent from Streptomyces sp.KIB-271.

Key words: endophyte, secondary metabolites, spectrometry, antimicrobial

中图分类号: 

R914.4 R284.2