Extracellular phenoloxidase activity of micromycetes from various taxonomic groups

The ability of Micromycetes strains to produce extracellular phenoloxidases was examined on solid malt agar medium using ten different reagents. We established a POx index summarizing the global activity given by the ten reagents used. The results indicated a wide variability depending on the taxono...

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Bibliographic Details
Published inMicrobiologica Vol. 15; no. 4; p. 367
Main Authors Guiraud, P, Seigle-Murandi, F, Steiman, R, Benoit-Guyod, J L
Format Journal Article
LanguageEnglish
Published Italy 01.10.1992
Subjects
Fungi - classification
Fungi - enzymology
Monophenol Monooxygenase - biosynthesis
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Summary:The ability of Micromycetes strains to produce extracellular phenoloxidases was examined on solid malt agar medium using ten different reagents. We established a POx index summarizing the global activity given by the ten reagents used. The results indicated a wide variability depending on the taxonomic groups, the genera and the species. Some groups were relatively homogeneous, either no and low producers of phenoloxidases (Yeasts, Zygomycetes, genera Aspergillus and Penicillium) or medium and high producers of phenoloxidases (Basidiomycetes, Coelomycetes, Tuberculariales and Dematiaceae), while other groups were very heterogeneous (Ascomycetes, Mucedinaceae). The POx index was significantly higher for strains recently isolated than for strains kept in the fungi collection for a long time.
ISSN:0391-5352