Exploring the chemical diversity of phytopathogenic fungi infecting edible fruits.

Nat Prod Res

Departament of BioMolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil.

Published: November 2023

Two fungi, and were cultured under different conditions to obtain fourteen compounds. The axenic cultures of and in potato dextrose broth (PDB) medium yielded fusaric acid (), 9,10-dehydrofusaric acid (), and tyrosol, whereas their co-cultivation produced fusarinol (), a fusaric acid complex with magnesium (), 9,10-dehydrofusaric acid complex with magnesium (), and 5-butyl-5-(hydroxymethyl) dihydrofuranone (). Upon changing the medium from PDB to Czapek, different compounds (uracil, -hydroxy acetophenone, and cyclo(L-Leu-L-Pro) were obtained. Fusaric acid () was biotransformed into fusarinol () by , suggesting a detoxification process, and three other compounds were obtained: 7-hydroxyfusarinol (), 9,10-dehydrofusarinol (), and fusarinyl acetate (). Epigenetic modulation of suberohydroxamic acid against afforded gibepyrone B (). These compounds were subjected to a papain inhibition enzymatic assay; the highest inhibitory activity was displayed by the two magnesium complexes, at 56 and 54% inhibition, respectively.

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http://dx.doi.org/10.1080/14786419.2022.2163482DOI Listing

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