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Extracellular hydrogen peroxide producing and hydrogen peroxide reducing compounds of wood decay fungi
1991 - IRG/WP 1516
Extracellular H2O2-producing and H2O2-reducing compounds were isolated from wood-containing cultures of all the white-rot and brown-rot fungi and Ascomycetes which well degraded wood, but were not detected in the culture of the fungi which degraded little wood. The compounds are glycopeptides with a low molecular weight, require H2O2 for one-electron oxidation, catalyze the redox reaction between an electron donor such as NADH or ascorbic acid and O2 to produce H2O2 via O2·-, and produce ·OH by Fenton's reaction between the ferrous iron bound to the ligands and H2O2. The compounds show no phenol-oxidase activity and catalyze the hydroxylation of phenol to catechol and hydroquinone in the presence of H2O2.
A Enoki, G Fuse, H Tanaka