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Updated: Jan 23, 2026

Author Spotlight: A New and Efficient Method for Comprehensive Metabolite Cytotoxicity Assessment of Triazole Pesticides in Plants
Published on: December 22, 2023
Cytotoxic Secondary Metabolites from the Endolichenic Fungus Hypoxylon fuscum
Buddha Bahadur Basnet1,2, Baosong Chen1,3, Yerlan Melsuly Suleimen1,4
1State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No. 1 Beichenxi Road, Chaoyang District, Beijing, China.
Abstract:
As part of our search for new cytotoxic and antimicrobial natural products from endolichenic fungi, 19 compounds including 1 new 10-member lactone (2: ), 1 new polyacetylene glycoside (3: ), 1 new brasilane-type sesquiterpenoid glycoside (4: ), and 2 isobenzofuran-1(3H)-one derivatives (5: and 6: ) were isolated from the solid culture of the endolichenic fungus Hypoxylon fuscum. Their structures were unambiguously elucidated by NMR spectroscopic data, MS, ECD (electronic circular dichroism) calculation, and chemical methods. The cytotoxic effects on K562, SW480, and HEPG2 cell lines and the antimicrobial activity against Bacillus subtilis, Staphylococcus aureus, Escherichia coli, and Candida albicans were assessed. Compounds 1, 2: , and 5: exhibited moderate cytotoxicity against K562, SW480, and HEPG2 cell lines while compounds 1, 9: , and 11: displayed weak antibacterial activity against S. aureus.
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