天然产物研究与开发 ›› 2018, Vol. 30 ›› Issue (7): 1176-1180.doi: 10.16333/j.1001-6880.2018.7.014

• 研究简报 • 上一篇    下一篇

广藿香内生真菌Daldinia eschscholtzii A630次级代谢产物及其细胞毒活性研究

卢梦梦1,2,陈玉婵1,刘洪新1,李赛妮1,李浩华1,陶美华1,郝再彬2,章卫民1*     

  1. 1广东省微生物研究所 省部共建华南应用微生物国家重点实验室 广东省菌种保藏与应用重点实验室 广东省微生物应用新技术公共实验室,广州 510070;2桂林理工大学化学与生物工程学院,桂林 541006
  • 出版日期:2018-08-08 发布日期:2018-08-08
  • 基金资助:

    国家自然科学基金(31600271);国家973前期专项(20 14CB460613);广东省科技计划(2015A030302060,2014A030304050);广东省自然科学基金(2015A0303 13710)

Secondary Metabolites of Endophytic Daldinia eschscholtzii A630 from Pogostemon cablin and Their Cytotoxic Activities

LU Meng-meng1,2,CHEN Yu-chan1,LIU Hong-xin1,LI Sai-ni1,LI Hao-hua1,TAO Mei-hua1,HAO Zai-bin2,ZHANG Wei-min1*   

  1. 1State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou 510070, China; 2College of Chemistry and Bioengineering,Guilin University of Technology, Guilin 541006, China
  • Online:2018-08-08 Published:2018-08-08

摘要: 采用色谱法从广藿香内生真菌Daldinia eschscholtzii发酵液中分离得到9个化合物,通过波谱数据分析分别鉴定为dihydrosphaerolone(1)、2,3-dihydro-5-hydroxy-2-methyl-4H-1-benzopyran-4-one(2)、6-hydroxymellein(3)、4,8-dihydroxy-1-tetralone(4)、8-methoxy-1-naphthol(5)、helicascolide A(6)、1-(2,6-dihydroxyphenyl)butan-1-one(7)、1-(2,6-dihydroxyphenyl)ethan-1-one(8)、diisobutyl phthalate(9),其中化合物5、9为首次从该属真菌中分离得到。细胞毒活性测试显示化合物6、7对肿瘤细胞SF-268、MCF-7、NCI-H460、HepG-2具有较好的抑制活性,IC50值在16.52~28.42 μmol/L之间。

关键词: 广藿香, 内生真菌, Daldinia eschscholtzii, 次级代谢产物, 细胞毒活性

Abstract: Seven compounds were isolated from a soil-derived Streptomyces sp.L8 of Qinghaihu by silica gel column,Sephadex LH-20 chromatography and semi-preparative HPLC.Their structures were identified as Germicidin B (1),Germicidin A (2),1-Acetyl-β-carboline (3),N-Isobutylacetamide (4),cyclo-(1-Pro-1-Val) (5),cyclo-(1-Pro-1-Phe) (6) and 3-Hydroxy-3-(2-Hydroxyethyl)-6-(3-Methylbut-2-en-1-yl)indolin-2-one (7) by NMR and mass spectrometry and 7 was a new compound.Among them,compound 3 displayed weak inhibitory activity against Staphylococcus aureus and compound 4 showed weak antifungal activity against Curvularia lunata (Walk) Boed.

Key words: Streptomyces, secondary metabolites, structure identification, antimicrobial activity

中图分类号: 

R284.1 Q93-3