NATURAL PRODUCT RESEARCH AND DEVELOPMENT ›› 2020, Vol. 32 ›› Issue (增刊2): 28-32.

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Metabolites from a rhizospheric soil-derived Streptomyces sp. of Panax notoginseng and their antimicrobial activity

LI Yuan-yuan1,2,WANG Li2,LIU Chong-xi1,2,YAN Yi-jun2,HUANG Sheng-xiong2*,XIANG Wen-sheng1*,WANG Xiang-jing1*#br#

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  1. 1College of Life Science,Northeast Agricultural University,Harbin 150030,China;2State Key Laboratory of Phytochemistry and Plant Resources in West China,Kunming Institute of Botany,Chinese Academy of Sciences,Kunming 650201,China 

  • Online:2020-12-09 Published:2020-12-09

Abstract:

Seven compounds were isolated from a rhizospheric soil-derived Streptomyces species of Panax notoginseng by various chromatography methods including MCI,Sephadex LH-20 column chromatography,and semipreparative HPLC.Their structures were elucidated as nortetillapyronpyrone(1),tetillapyrone(2),cyclo(L)-4-OH-Pro-(L)-Phe(3),N1-acetyl-N5,N10-di-p-(EE)- coumaroylspermidine(4),1H-pyrrole-2-carbothioic acid(5),futalosine(6)and 1,3,6-trihydroxy-8-n- propylanthraquinone(7), respectively,based on the analyses of their MS and NMR data.Compound 7 showed a wide range of inhibitory activities against Gibberella zeae, Fusarium oxysporum Schl. f.sp.vasinfectum, Penicillum decumberns, Curvularia lunata (Walk) Boed,Staphyloccocus aureus, Bacillus subtilis and Escherichia coli.

Key words: Streptomyces, secondary metabolites, structural identification, antibacterial activity, antifungal activity

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