[Combined effect of copper and initial pH of the culture on production of laccase and manganese peroxidase by Stereum hirsutum (Willd) Pers].

Rev Iberoam Micol

Laboratorio de Micología Experimental, Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina.

Published: December 2003

Stereum hirsutum is a white-rot fungus which produces laccase and manganese peroxidase as part of its ligninolytic system. Maximal ligninases production (under the conditions studied) was obtained in the media containing 250 microM Cu++ along with a pH value of 5.5. The fitting of ligninase production to a linear equation showed negative interaction between increasing values of pH and concentration of copper.

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