Influence of environmental conditions on hyphal morphology in pellets of Aspergillus niger: role of beta-N-acetyl-D-glucosaminidase.
The influence of modifications of the environmental conditions of growth on beta-N-acetyl-D-glucosaminidase (EC 3.2.1.30) activity and on hyphal morphological patterns in pellets of Aspergillus niger was studied. It was found that changes in the degree of branching and, to a lesser extent, in the number of bulbous cells were directly related to the activity of the enzyme. Nevertheless, since beta-N-acetyl-D-glucosaminidase is not the only enzyme involved in the lytic potential of the fungus, these findings do not exclude the possibility that other enzymes may be involved.
Planta Piloto de Procesos Industriales Microbiológicos (PROIMI), Avda Belgrano y Pje. Caseros-4000-Tucumán, Argentina.
L M
LM
Pera
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MD
Baigorí
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D
Callieri
D000118:Acetylglucosaminidase / Q000378:metabolism*; D001234:Aspergillus niger / Q000166:cytology* / Q000201:enzymology* / Q000254:growth & development; D002412:Cations / Q000494:pharmacology; D006863:Hydrogen-Ion Concentration; D013696:Temperature
D002412:Cations; D000118:Acetylglucosaminidase