天然产物研究与开发 ›› 2022, Vol. 34 ›› Issue (8): 1332-1337.doi: 10.16333/j.1001-6880.2022.8.008

• 研究简报 • 上一篇    下一篇

九香虫内生曲霉菌次生代谢产物及其抗菌活性研究

徐笑天1,姬凌波2,段小群1*,王宇晖1*   

  1. 1桂林医学院药学院,桂林 541199;2中国烟草总公司郑州烟草研究院,郑州 450001
  • 出版日期:2022-08-28 发布日期:2022-09-08
  • 基金资助:
    国家自然科学基金(82160615);广西八桂学者专项(桂财教函[2017]143号)

Study on the secondary metabolites of endophytic fungus Aspergillus sp. from Aspongopus chinensis and their antimicrobial activity

XU Xiao-tian1,JI Ling-bo2,DUAN Xiao-qun1*,WANG Yu-hui1*   

  1. 1School of Pharmacy,Guilin Medical University,Guilin 541199,China;2Zhengzhou Tobacco Research Institute of CNTC,Zhengzhou 450001,China
  • Online:2022-08-28 Published:2022-09-08

摘要:

本文对一株来自九香虫肠道的内生曲霉菌(Aspergillus sp.)的代谢产物进行研究。利用硅胶柱色谱、MCI柱色谱、凝胶柱色谱及半制备液相等方法对该菌的大米固体发酵浸膏进行分离纯化,从中分离得到6个化合物。通过核磁共振和质谱技术对这6个化合物结构进行解析,包括1个新化合物:flavipone(1)和5个已知化合物:citreovirenone(2)、kojic acid(3)、methyl chloroasterrate(4)、aspulvinone P(5)、aspulvinone Q(6),其中化合物12首次从曲霉菌中分离得到。活性测试显示化合物34具有一定的抑菌作用,MIC值在35.5到67.5 μg/mL之间。

关键词: 九香虫, 内生真菌, 曲霉, 次生代谢产物, 抗菌活性

Abstract:

The metabolites of an endophytic Aspergillus sp. from the intestine of Aspongopus chinensis were studied in tihis paper.Six compounds were isolated from rice solid fermentation extract by silica gel column chromatography,MCI column chromatography,gel column chromatography and semi preparative liquid method.The structures of the six compounds were analyzed by NMR and mass spectrometry,including a new compound flavion (1) and five known compounds citreovirenone (2),kojic acid (3),methyl chloroacetate (4),aspulvinone P (5) and aspulvinone Q (6).Compounds 1 and 2 were isolated from Aspergillus for the first time.Compounds 3 and 4 exhibited weak antimicrobial effects with MIC values ranging from 35.5 to 67.5 μg/mL.

Key words: Aspongopus chinensis, endophytic fungus, Aspergillus , sp., secondary metabolites, antimicrobial activities

中图分类号:  R285.5