天然产物研究与开发 ›› 2018, Vol. 30 ›› Issue (11): 1933-1938.doi: 10.16333/j.1001-6880.2018.11.014

• 研究简报 • 上一篇    下一篇

东乡野生稻内生放线菌Streptomyces sp.PRh5抑菌活性次级代谢产物研究

包建莹1,张志斌1,肖依文2,汪涯2,颜日明1,朱笃1,2*   

  1. 1江西师范大学生命科学学院 江西省亚热带植物资源保护与利用重点实验室;2江西科技师范大学生命科学学院 江西省生物加工过程重点实验室,南昌330013
  • 出版日期:2018-12-03 发布日期:2018-12-03
  • 基金资助:

    国家自然科学基金(31260137,31760160)

Antibacterial and Antifungal Secondary Metabolites Produced by Endophytic Actinomycete Streptomyces sp.PRh5 from Dongxiang Wild Rice

BAO Jian-ying1, ZHANG Zhi-bin1, XIAO Yi-wen2, WANG Ya2, YAN Ri-ming1, ZHU Du1,2*   

  1. 1Key Laboratory of Protection and Utilization of Subtropic Plant Resources of Jiangxi Province, Jiangxi Normal University; 2Key Laboratory of bioprocess of Jiangxi Province,Jiangxi Science & Technology Normal University,Nanchang 330013,China
  • Online:2018-12-03 Published:2018-12-03

摘要: 从东乡野生稻中分离到一株生产较强抑菌活性代谢产物的内生放线菌菌株Streptomyces sp.PRh5,利用活性追踪法结合正相硅胶、凝胶柱层析等色谱技术从PRh5菌株发酵液中分离到4种抑菌活性化合物,经1H NMR、13C NMR和MS等波谱分析鉴定为邻苯二甲酸二丁酯(1)、尼日利亚菌素(2)、13-Docosenamide(3)、诺卡胺素(4)。这表明菌株PRh5具有开发为新型抑菌生物制剂的潜力。

关键词: 内生放线菌, Streptomyces sp.PRh5, 抑菌活性, 次级代谢产物

Abstract: An endophytic actinobacterial Streptomyces sp.PRh5 isolated from Dongxiang wild rice (Oryza rufipogon) showed markedly antibacterial and antifungal bioactivities.Guided by antibacterial assay,the bioactive components in fermentation broth of the strain PRh5 were separated by various chromatographic methods including silica gel column and Sephadex LH-20.Four monomer compounds were purified and identified as dibutyl phthalate (1),nigericin (2),13-docosenamide (3),nocardamin (4) respectively on the basis of 1H NMR、13C NMR and MS analyses.It was concluded that strain PRh5 could be potentially developed as a new antimicrobial agent.

Key words: endophtic actinomycetes, Streptomyces sp.PRh5, antimicrobial activity, secondary metabolites

中图分类号: 

R914.4 R284.2