ORIGINAL ARTICLE
Year : 2012  |  Volume : 11  |  Issue : 2  |  Page : 124-128

In-vitro bioassays on the metabolites of the fungus Emericella nidulans isolated from the Egyptian Red Sea algae


1 Department of Phytochemistry and Plant Systematic, National Research Centre, Dokki, Cairo, Egypt
2 Department of Pharmacognosy, National Research Centre, Dokki, Cairo, Egypt
3 Department of Natural and Microbial Products Chemistry, National Research Centre, Dokki, Cairo, Egypt

Correspondence Address:
Usama W. Hawas
Phytochemistry and Plant Systematic Department, National Research Centre, Dokki, 12311 Cairo
Egypt
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Source of Support: None, Conflict of Interest: None


DOI: 10.7123/01.EPJ.0000421517.80892.ed

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Aim

There are a number of theories on which organisms provide the most interesting bioactive metabolites. In this study, we discuss the biochemical activities of the marine-derived endophyte Emericella nidulans, isolated from the Egyptian Red Sea algae.

Methods

The fungus E. nidulans was isolated as an endophyte from the Egyptian Red Sea brown alga Turbinaria elatensis. The fungus was identified by a morphological method and 18S rDNA sequence comparison. Chemical constituents were isolated using chromatographic techniques.

Results and conclusion

Cultivation of this fungus in Czapek’s peptone media led to the isolation of five known metabolites: sterigmatocystin (1), emericellin (2), cordycepin (3), ergosterol peroxide (4), and myristic acid (5) from the ethyl acetate extract of the culture broth. The structures were elucidated on the basis of NMR spectroscopic analysis and mass spectrometry. The ethyl acetate extract and the isolated compounds were tested for antimicrobial properties, activity against cancer cell lines, and inhibition of the hepatitis C virus protease.



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