Abstract
Ten compounds (1–10) were obtained from soil-derived Penicillium cremeogriseum W1-1 with the antimicrobial guided isolation procedure. Among them, 4 presented broad-spectrum antimicrobial activities and its preliminary mechanisms were evaluated. Compound 4 showed growth inhibition on drug-resistant pathogenic strains Escherichia coli and Candida albicans with post-contact effect (PCE), changed the morphology and membrane structure, killed cells with leakage, inhibited the growth of C. albicans by eradicating biofilms. Interestingly, the fraction containing 4 presented in vivo anti-pathogenic activities in mice, indicating this indole diterpenoid alkaloid could been used as potential antimicrobial agent.
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Acknowledgements
This work was supported financially by the National Natural Science Foundation of China (No. 81760632, 31660532, 81660582). The authors are grateful to introduced talents grand of Yunnan University (to Xiao-Dong Luo) and Yunnan Major Science and Technology Project (2019FY003004 and 2019ZF003) for financial support.
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Sang, XY., Wang, ZJ., Yang, YB. et al. Antimicrobial Natural Products Produced by Soil-Derived Fungus Penicillium cremeogriseum W1-1. Indian J Microbiol 61, 519–523 (2021). https://doi.org/10.1007/s12088-021-00957-z
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DOI: https://doi.org/10.1007/s12088-021-00957-z