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Comparative Study
. 2017 Jun;70(6):726-732.
doi: 10.1038/ja.2017.21. Epub 2017 Mar 8.

OSMAC approach leads to new fusarielin metabolites from Fusarium tricinctum

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Comparative Study

OSMAC approach leads to new fusarielin metabolites from Fusarium tricinctum

Catalina F Pérez Hemphill et al. J Antibiot (Tokyo). 2017 Jun.

Abstract

Using the OSMAC (One Strain MAny Compounds) approach, the fungal endophyte Fusarium tricinctum was cultivated on fruit and vegetable juice-supplemented solid rice media. This led to an up to 80-fold increase in the accumulation of the new natural product fusarielin J (1), as well as to the induction of two new natural products fusarielin K (2) and fusarielin L (3) and the known derivatives fusarielins A (4) and B (5). Compounds 2-5 were not detected when the fungus was grown on rice media lacking either fruit or vegetable juice. The highest increase in the accumulation of compound 1 was observed in the presence of apple and carrot juice, whereas the stimulating effect was weaker for banana juice. Compound 1 exhibited cytotoxicity against the human ovarian cancer cell line A2780, with an IC50 value of 12.5 μM.

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