Abstract
Summary Using the diaminobenzidine (DAB) reaction catalase activity could be demonstrated cytochemically in cytoplasmic structures of Poria contigua bearing the general ultrastructural features of microbodies. These kidney-shaped compartments were associated with a densely packed coherent membrane system. When H 2 O 2 was replaced by methanol the microbodies were stained indicating that alcohol oxidase generated the H 2 O 2 for the peroxidative conversion of DAB by catalase. Based on these results we assume that catalase and alcohol oxidase are located in microbodies of this fungus as found for methanol-utilizing yeasts.
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More From: Zentralblatt für Bakteriologie: I. Abt. Originale C: Allgemeine, angewandte und ökologische Mikrobiologie
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