天然产物研究与开发 ›› 2016, Vol. 28 ›› Issue (6): 828-832.doi: 10.16333/j.1001-6880.2016.6.003

• 研究论文 • 上一篇    下一篇

线虫共生菌Xenorhabdus budapestensis SN19次生代谢产物的分离纯化与结构鉴定

卢星忠1,石丹姝1,高淳之1,田晓美1,毕于慧1,于志国1,2*   

  1. 1 沈阳农业大学植物保护学院;2 辽宁省生物农药工程技术研究中心,沈阳110866
  • 出版日期:2016-06-30 发布日期:2017-01-17

Isolation and Identification of Secondary Metabolites from Xenorhabdus budapestensis SN19

LU Xing-zhong1,SHI Dan-shu1,GAO Chun-zhi1,TIAN Xiao-mei1,BI Yu-hui1,YU Zhi-guo 1,2*   

  1. 1 Colledge of plant protection,Shenyang Agricultural University;2Engineering &  technological research center of biopesticide,Shenyang 110866,China
  • Online:2016-06-30 Published:2017-01-17

摘要: 采用硅胶柱层析、凝胶柱层析和半制备高效液相色谱技术对线虫共生菌Xenorhabdus budapestensis SN19的次生代谢产物进行分离纯化,得到2个单体化合物。通过波谱综合解析和文献数据对照分别鉴定为xenematides C(1)和 xenematides E(2),其中化合物2为新化合物,化合物1对番茄灰霉病菌具有较强的抑制作用(EC50 = 22.71 μg/mL)。

关键词: 线虫共生菌, 次生代谢产物, 酯肽, 抗真菌活性

Abstract: Two depsipeptides were isolated and purified from secondary metabolites of Xenorhabdus budapestensis SN19 by silica gel column chromatography,Sephadex LH-20 chromatography and semi-preparative high-performance liquid chromatography.Their structures were identified as xenematides C (1) and xenematides E (2) using nuclear magnetic resonance (NMR) and mass spectroscopy (MS).Xenematides E (2) was a new compound.Xenematides C (1) showed a strong inhibition activity against Botrytis cinerea (EC50=22.71 μg/mL).

Key words: nematode symbiotic bacteria, secondary metabolites, depsipeptide, antifungal

中图分类号: 

S482.7