Antifungal Nafuredin And Epithiodiketopiperazine Derivatives From The Mangrove-Derived Fungustrichoderma Harzianumd13
文献类型: 外文期刊
作者: Zhao, DL; Zhang, XF; Huang, RH; Wang, D; Wang, XQ; Li, YQ; Zheng, CJ; Zhang, P; Zhang, CS
作者机构:
关键词: Nafuredins; Epithiodiketopiperazines; Magnaporthe Oryzae; Antifungal Activity; Trichoderma Harzianum
期刊名称: FRONTIERS IN MICROBIOLOGY
ISSN: 1664-302X
年卷期: 2020 年 11 卷
页码:
收录情况: JCR(2021版)
摘要: A new polyketide derivative, nafuredin C (1), a novel heterocyclic dipeptide, trichodermamide G (3), together with four known biogenetically related compounds nafuredin A (2), trichodermamide A (4), aspergillazin A (5), and peniisocoumarin H (6), were isolated from the mangrove-derived fungusTrichoderma harzianumD13. Their structures, including their absolute configurations, were determined by spectroscopic analysis and time-dependent density functional theory-electronic circular dichroism (ECD) calculations. Trichodermamide G was found to be a novel epithiodiketopiperazine derivative with an unprecedented cyclic system containing a sulfur bridge, and nafuredin C represented the third nafuredin derivative of these homologous compounds. The new compound nafuredin C exhibited obvious antifungal activity againstMagnaporthe oryzaewith a minimum inhibitory concentration (MIC) of 8.63 mu M, which is on the same order of magnitude as the positive control carbendazim (MIC = 3.27 mu M).
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