title: A Dactylium dendroides morphological mutant defective in D-galactose metabolism.
abstract: 1. A morphological mutant of the mold Dactylium dendroides was isolated and the phenotype characterized as D-Gal- and L-Ara-. 2. The transport system for D-galactose seemed to be inducible in wild type and mutant and was altered in the mutant. 3. Galactose-1-P-uridylyl transferase activity was absent in the mutant. 4. The levels of intracellular galactose oxidase activity were similar in the wild type and in the mutant, thereby excluding a possible participation of this enzyme in galactose catabolism in the mold. 5. The low level of galactose oxidase activity found in the extracellular medium indicates a defect in galactose oxidase secretion by the mutant.
authors.affiliation: Departamento de Bioquímica, Universidade Federal do Paraná, Curitiba, Brasil.
authors.forename: D
authors.initials: D
authors.lastname: Kubicki
authors.forename: G T
authors.initials: GT
authors.lastname: Zancan
authors.forename: D
authors.initials: D
authors.lastname: Amaral
mesh_terms: D001089:Arabinose / Q000378:metabolism; D005690:Galactose / Q000378:metabolism*; D005692:Galactose Oxidase / Q000172:deficiency / Q000378:metabolism*; D003904:Mitosporic Fungi / Q000201:enzymology / Q000235:genetics / Q000254:growth & development / Q000378:metabolism*; D009154:Mutation
chemical_list: D001089:Arabinose; D005692:Galactose Oxidase; D005690:Galactose