Biological profile of anamorphic fungi from southeast Mexico
DOI:
https://doi.org/10.33885/sf.2008.3.1030Keywords:
Antimicrobial, antioxidants, tropical fungi, melleinAbstract
Leaf litter fungi Beltraniella japonica, B. portoricensis, Beltraniopsis sp., Gliomastix
murorum and MR45were cultured in two liquid mediums, Czapeck-Dox-yeast extract (CDY)
and potato dextrose broth (PDB). In each case, mycelium was separated from the broth filter,
and both were macerated with EtAcO, producing filtrate fungal extracts (FFE) and mycelium
extract (MFE). These were evaluated by the reduction of radical 2, 2-diphenyl-1-
picrylhydrazyl (DPPH) assay, and by microdilution antimicrobial test against four pathogenic
microorganisms. The results showed high ability to DPPH reduction in FFE of B. japonica, G.
murorum, and MR45 in PDB and CDY. The highest antimicrobial activity was detected
against S. aureus produced by both Beltraniella strains (200 μg) in PDB and against E.
carotovora by MFE of B. japonica in CDY. In both mediums, this strain produced mellein, no
other metabolite was identified from the active extracts. The biological profile and initial
chromatographic explorations of the active extracts confirm metabolic diversity in our
tropical fungi, which could be utilized to improve the production of metabolites useful in
pharmacy and agriculture.
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