Regulation of cellulolytic activity in Cellulomonas sp. IIbc

✍ Scribed by H. Rodríguez; F. Alea; E. Kyslíkova

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 425 KB
• Volume: 55
• Category: Article
• ISSN: 0960-8524
• DOI: 10.1016/0960-8524(95)00149-2

✦ Synopsis

The effect of glucose, cellobiose and xylose on the regulation of cellulolytic activity in Cellulomonas sp. ZZbc was investigated. The addition of 1% glucose, cellobiose or xylose to actively growing bagasse pith cultures repressed the cellulose system. No enzyme inactivation by sugar concentrations up to 1.5% was detected. Both cellobiose and xylose, at concentrations

ranging from 0.005 to O-0270, served as inducers of the cellulolytic complex in resting cell experiments, while a basal level of constitutive synthesis occurred without any cellulosic substrate or derivative in the culture medium.