The identification of the mycelia of wood-decay fungi by their oxidation reactions with phenolic compounds
1. For purposes of identification of fungus rnycelia the production of Iaccase and tyrosinase type enzymes in the mycelia of decay fungi is estimated by using several phenolic conlpounds in a droptest. 2. The influence of some factors, as pH, temperature, age of the inycelium and intraspecific variations on the results is shown. 3. On the basis of their production or not of laccase and tyrosinase the mycelia are divided into four groups: 1) producing neither laccase nor tyrosinase, 2) producing only tyrosinase, 3) producing only laccase, 4) producing both laccase and tyrosinase. On the basis of the intensity of the reactions and taking into account the specific reactions with some substances these groups may be subdivided into smaller ones. 4. The results are commented and compared with results obtained by other authors with different methods. 5. The occurrence and characteristics of laccase and tposinase and their possible role in metabolism, especially in lignin degradation, and their action on other phenolic substances is briefly discussed.
mycelia; fungi; phenolic compounds
Studia Forestalia Suecica
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