Synthetic lignin mineralization by Ceriporiopsis subvermispora is inhibited by an increase in the pH of the cultures resulting from fungal growth

Article Abstract:

A study of the effect of laccase and manganese peroxidase(MnP) on lignin biodegradation by Ceriporiopsis subvermispora shows that an increase in the pH of the cultures resulted in the inverse correlation between lignin mineralization and enzyme titers detected in Ceriporiopsis subvermispora with 10mM ammonium tartrate(AT). Experimental evidence shows that rate of 14CO(sub 2) evolution and level of enzyme and mycelium was higher in solution containing 1% of glucose.

Analysis, Hydrogen-ion concentration, Wood-decaying fungi

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Extracellular enzyme production and synthetic lignin mineralization by Ceriporiopsis subvermispora

Article Abstract:

The relationships between the rates of synthetic lignin mineralization and the levels of manganese peroxidase (MnP) and laccase produced by the white rot fungus ceriporiopsis subvermispora is examined. Different levels of the extracellular enzymes are produced under different culture conditions and the mineralization rates are determined. A marginal relationship exists between mineralization rate and MnP and laccase production.

Enzymes

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A novel extracellular multicopper oxidase from Phanerochaete chrysosporium with ferroxidase activity

Article Abstract:

Research reveals that the laccase activity of Phanerochaete chrysosporium is due to a new multicopper oxidase distinct from fungal laccase as shown by the identification of the clustered multicopper oxidase-encoding sequences.

United States, Chile, Physiological aspects, Fungi, Oxidases

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