天然产物研究与开发 ›› 2022, Vol. 34 ›› Issue (9): 1515-1522.doi: 10.16333/j.1001-6880.2022.9.008

• 研究简报 • 上一篇    下一篇

三株大兴安岭森林凋落物真菌中次生代谢产物及其抗菌活性研究

甄锦程1,司   璐1,于洪佳1,都婷婷1,刘   瑶1,单体江2,徐利剑1*   

  1. 1黑龙江大学现代农业与生态环境学院,哈尔滨 150080;2华南农业大学林学与风景园林学院,广州 510642
  • 出版日期:2022-09-28 发布日期:2022-10-09
  • 基金资助:
    国家自然科学基金(31870528);黑龙江大学研究生创新科研项目(YJSCX2021-217HLJU)

Study on secondary metabolites and antimicrobial activities of three fungi from forest litter in the Greater Hinggan Mountains

ZHEN Jin-cheng1,SI Lu1,YU Hong-jia1,DU Ting-ting1,LIU Yao1,SHAN Ti-jiang2,XU Li-jian1*   

  1. 1College of Advanced Agriculture and Ecological Environment,Heilongjiang University,Harbin 150080,China;2College of Forestry and Landscape Architecture,South China Agricultural University,Guangzhou 510642,China
  • Online:2022-09-28 Published:2022-10-09

摘要: 本研究采用天然产物分离技术从大兴安岭森林凋落物真菌SGSF622(Berkleasmium sp.)、SGSF289(Oidiodendron sp.)和SGSF062(Parapyrenochaeta sp.)的提取物中获得8个天然产物,经核磁共振、质谱对这些化合物进行了结构鉴定,分别为1-甲氧基-Sch53825(1)、3,4-二羟基-10-甲基-2-亚甲基十六碳-9-烯酸(2)、3,3-二-(3-吲哚)丙烷-1,2-二醇(3)、环(D-色-L-脯)二肽(4)、6-demethylkigelin(5)、lignicol(6)、indole-3-carboxaldehyde(7)和N-(5-amino-2-hydroxy-1-oxopentyl)-tyrosine(8),其中化合物1和化合物2为新化合物。抗菌活性结果显示,化合物23具有明显的抗菌活性,其中化合物2活性最强,抗青枯劳尔氏菌(Ralstonia solanacearum)MIC值为7.81 μg/mL。

关键词: 大兴安岭, 凋落物真菌, 次生代谢产物, 抗菌活性

Abstract:

In this study,eight natural compounds were obtained from the extracts of three fungal isolates Berkleasmium sp. SGSF622,Oidiodendron sp. SGSF289 and Parapyrenochaeta sp.SGSF062 from the forest litter in the Greater Hinggan Mountains by the techniques of natural product separation.The structures of these compounds were elucidated by NMR and MS.They were 1-methoxy-Sch53825 (1),3,4-dihydroxy-10-methyl-2-methylene hexadecano-9-enoic acid (2),3,3-bis-(3-indole) propane-1,2-diol (3),cyclo-D-Trp-L-pro (4),6-demethylkigelin (5),lignicol (6),indole-3-carboxaldehyde (7),and N-(5-amino-2-hydroxy-1-oxopentyl)-tyrosine (8),respectively.The compounds 1 and 2 were novel compounds.The results of antimicrobial activities showed that the compounds 2 and 3 had obviously antimicrobial activities,and the compound 2 had the strongest antimicrobial activity with MIC value of 7.81 μg/mL against Ralstonia solanacearum.

Key words: Greater Hinggan Mountains, litter fungi, secondary metabolites, antimicrobial activities

中图分类号:  R284