Cellulase is a kind of inducible enzyme. The inducer is required for cellulase expression. Cellulose, sophorose, lactose, cellobiose and sorbitol are common inducers. Trichoderma reesei mainly expresses three ceUulases, endoglucanase, exoglucanase and β-1,4-glucosidase, in which the expression level of exoglucanase I is highest, followed by endoglucanase and β-1,4-glucosidase. The synthesis and expression of cellulase is affected by active elements and inhibitory factors. In details, the combination of inducer and active element induces the s...
