Journal of Tropical Oceanography ›› 2025, Vol. 44 ›› Issue (6): 188-195.doi: 10.11978/2025025CSTR: 32234.14.2025025

• Exploitation of Marine Resources • Previous Articles    

Bioactive metabolites from the sponge-derived fungus Penicillium crustosum SCSIO 41442

LIANG Jiaqi1,2(), CHEN Xinqi1,2, CHEN Yi1,2, CONG Mengjing1, CAO Qinlin1, HUANG Xiaowen1,3, LIU Yonghong1, JAYASINGHE Lalith1,4, CHEN Chunmei1(), ZHOU Xuefeng1,2()   

  1. 1 CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
    2 University of Chinese Academy of Sciences, Beijing 100049, China
    3 Pharmacy school of Guilin Medical University, Guilin 541199, China
    4 National Institute of Fundamental Studies, Kandy 20000, Sri Lanka
  • Received:2025-02-18 Revised:2025-03-19 Online:2025-11-10 Published:2025-12-03
  • Contact: CHEN Chunmei, email: ;ZHOU Xuefeng, email:
  • Supported by:
    Special Project for Marine Economic Development of Department of Natural Resources of Guangdong Province(GDNRC[2023]37)

Abstract:

A new alkaloid, diacedolinate (1), along with fourteen known compounds (2-15) was isolated from the sponge associated fungus Penicillium crustosum SCSIO 41442. The structures of these compounds were determined by spectrum analysis and ECD. All compounds were evaluated for their antioxidant and antimicrobial activities. The results showed that compound 1 exhibited weak antioxidant activity with an IC50 value of (71.00±0.14) μg·mL-1, while compound 2, in contrast, displayed broad antioxidant activity with an IC50 value of (1.25±0.10) μg·mL-1, compared with the positive control, vitamin C. In addition, compounds 9, 10, 11, and 15 demonstrated broad-spectrum antimicrobial activity against a variety of pathogens, including MRSA, Colletotrichum asianum HNM 408, Colletotrichum acutatum HNM RC178, and Alternaria alternate, with MIC values ranging from 2.5 to 160 μg·mL-1. The bioactivities of these compounds are reported here for the first time.

Key words: sponge-derived fungi, Penicillium crustosum, secondary metabolites, antioxidant, antimicrobial

CLC Number: 

  • Q936