有机化学    

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a,b, 张亚亚a,b, 符霖a,b, 邓璐楠a,b, 陈光英*,a,b, 黎婉珊*,a,b   

  1. a热带药用资源化学教育部重点实验室,海南师范大学化学与化工学院 海口 571158;
    b热带药用植物化学海南省重点实验室,海南师范大学化学与化工学院 海口 571158
  • 收稿日期:2026-04-23 修回日期:2026-05-24
  • 基金资助:
    国家自然科学基金(No. 22267006)、海南省自然科学基金 (No. 222QN303)、大学生创新创业训练计划 (No. S202511658012) 资助项目.

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

He Yonga,b, Zhang Yayaa,b, Fu Lina,b, Deng Lunana,b, Chen Guangying*,a,b, Li Wanshan*,a,b   

  1. aKey Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, People’s Republic of China;
    bKey Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, People’s Republic of China
  • Received:2026-04-23 Revised:2026-05-24
  • Contact: *E-mail: liwanshan@hainnu.edu.cn
  • Supported by:
    National Natural Science Foundation of China (No.22267006), Hainan Provincial Natural Science Foundation of China (No. 222QN303) and Innovation and Entrepreneurship Training Program for College students (No. S202511658012).

对海洋来源真菌Talaromyces sp. F017-1-114的次级代谢产物进行研究,从中分离得到了两个新的氧杂蒽酮衍生物(1和2)和一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,其最小抑菌浓度分别为25 µg/mL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 (1 and 2), one new bisabolane-type sesquiterpene (3), and six known polyhydroxanthones (4-9). The structures of the new compounds were demonstrated by HRESIMS, 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 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