有机化学 ›› 2026, Vol. 46 ›› Issue (10): 4008-4015.DOI: 10.6023/cjoc202604035 上一篇    下一篇

研究论文

海洋来源真菌Talaromyces sp. F017-1-114次级代谢产物与其抗菌活性研究

何勇, 张亚亚, 符霖, 邓璐楠, 陈光英*(), 黎婉珊*()   

  1. 海南师范大学化学与化工学院 热带药用资源化学教育部重点实验室 热带药用植物化学海南省重点实验室 海口 571158
  • 收稿日期:2026-04-23 修回日期:2026-05-24 发布日期:2026-07-14
  • 基金资助:
    国家自然科学基金(22267006); 海南省自然科学基金(222QN303); 大学生创新创业训练计划(S202511658012)

Research on Secondary Metabolites and Antibacterial Activity of a Marine-Derived Fungus Talaromyces sp. F017-1-114

Yong He, Yaya Zhang, Lin Fu, Lunan Deng, Guangying Chen*(), Wanshan Li*()   

  1. Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158
  • Received:2026-04-23 Revised:2026-05-24 Published:2026-07-14
  • Contact:
  • Supported by:
    National Natural Science Foundation of China(22267006); Hainan Provincial Natural Science Foundation of China(222QN303); Innovation and Entrepreneurship Training Program for College Students(S202511658012)

对海洋来源真菌Talaromyces sp. F017-1-114的次级代谢产物进行研究, 从中分离得到了2个新的氧杂蒽酮衍生物[8β-hydroxy-ergochrome D (1)和4,2′-linked ergochrysin (2)]、1个新的没药烷型倍半萜(3)以及6个已知的多羟基氧杂蒽酮(4~9). 通过高分辨电喷雾质谱、核磁共振波谱、铜靶X射线单晶衍射分析以及ECD曲线计算, 确定了新化合物的结构. 体外抗菌活性结果显示, 化合物5和6对青枯雷尔氏菌ATCC11696表现出中等的抗菌活性, 其最小抑菌浓度(MIC)分别为25和12.5 µg/mL. 化合物3对金黄色葡萄球菌ATCC25923显示出较弱的抗菌活性, 最小抑菌浓度为50 µg/mL.

关键词: 篮状菌属, 海洋来源真菌, 氧杂蒽酮, 倍半萜, 抗菌活性

Chemical investigation on a marine-derived fungus Talaromyces sp. F017-1-114 led to isolation of two new xanthone derivatives [8β-hydroxy-ergochrome D (1) and 4,2'-linked ergochrysin (2)], one new bisabolane-type sesquiterpene (3), and six known polyhydroxanthones [4,4'-linked secalonic acid A (4), 2,4'-linked secalonic acid A (5), 2,2'-linked secalonic acid A (6), (2S,9S,10S,2'S,9'S,10'S)-epi-blennolide H (7), talaronins F (8), degradation of the acid V (9)]. The structures of the new compounds were demonstrated by HR-ESI-MS, extensive NMR investigations, single-crystal X-ray diffraction analysis with Cu Kα radiation, and electronic circular dichroism (ECD) calculations. Among them, compounds 5 and 6 showed moderate antimicrobial activities against Ralstonia solanacearum ATCC11696 with minimum inhibitory concentration (MIC) values of 25 and 12.5 µg/mL, respectively. Compound 3 exhibited weak antibacterial activity against Staphylococcus aureus ATCC25923 with an MIC value of 50 µg/mL.

Key words: Talaromyces sp., marine-derived fungi, xanthones, sesquiterpenes, antibacterial activity