Induction of sorbitol dehydrogenase by sorbitol in Aspergillus niger

✍ Scribed by B. M. Desai; V. V. Modi; V. K. Shah

• Book ID: 104761579
• Publisher: Springer
• Year: 1967
• Tongue: English
• Weight: 225 KB
• Volume: 56
• Category: Article
• ISSN: 0302-8933
• DOI: 10.1007/bf00408418

✦ Synopsis

There are many reports on the induction of enzymes responsible for the metabolism of polyols in bacteria, either directly or through their phosphorylated intermediates (S~ow, 1956; MAGASA~rK, 1953; S~BEK and RANDL~R, 1959). However, there is negligible data on the polyol metabolism by filamentous fungi (YAMADA et al., 1959). In this communication we wish to report our studies on sorbitol metabolism and related enzymes in Aspergillus niger. We have observed that sorbitol dehydrogenase is present at high level in Aspergillus niger during growth on sorbitol. Sorbitol dehydrogenase and fructokinase are induced in the presence of sorbitol and glucokinase is repressed.