Journal of Tropical Oceanography ›› 2024, Vol. 43 ›› Issue (2): 121-127.doi: 10.11978/2023095CSTR: 32234.14.2023095

• Marine Biology • Previous Articles     Next Articles

Study on the secondary metabolites of marine fungus Phaeospheriopsis sp. ZYX-Z-811

QUAN Miaomiao1(), MA Qingyun2, YANG Li2, XIE Qingyi2, DAI Haofu2, HAO Yu’e1(), ZHAO Youxing2()   

  1. 1. Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421000, China
    2. Haikou Key Laboratory for Research and Utilization of Tropical Natural Products, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101,China
  • Received:2023-07-10 Revised:2023-08-25 Online:2024-03-10 Published:2024-03-26
  • Supported by:
    Special Finance Project of Ministry of Agriculture and Rural Affairs(NFZX2021); Special Project of the Ministry of Finance and the Ministry of Agriculture and Rural Affairs on the National Modern Agricultural Industrial Technology System(CARS-21); Special projects for the reform of public scientific research institutions(ITBBQDF2023004)

Abstract:

The secondary metabolites of marine fungus Phaeosporiopsis sp. ZYX-Z-811 were isolated and identified, and their biological activities were evaluated. The compounds were separated and purified by Silica gel, C18, Sephadex LH-20 column chromatography and high performance liquid chromatography (HPLC), ten compounds were separated, and their structures were identified by NMR, IR and UV spectroscopic methods. Ten compounds were identified as 4-epi-lignicol (1), lignicol (2), 6-demethylkigelin (3), 6, 8-dihydroxy-3, 4, 7-trimethylisocoumarin (4), 6, 7-dimethoxymellein (5), musaone A (6), 2-(4-hydroxyphenyl)ethylacetate (7), 3-indole formaldehyde (8), indole-3-acetic acid methyl ester (9), methyl p-hydroxybenzoate (10), among which compound 1 was not published in journal, and the absolute configuration was determined by ECD calculation. These compounds were evaluated for antioxidant activity and α-glucosidase in hibitoryactivity, respectively, compound 10 showed weak antioxidant activities.

Key words: marine-derived fungus, Phaeosphairiopsis sp., secondary metabolites, bioactivity