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Regulatory aspects of endoglucanase production by the brown-rot fungus Gloeophyllum trabeum


Experimental Mycology 16(4): 253-260
Regulatory aspects of endoglucanase production by the brown-rot fungus Gloeophyllum trabeum
Regulation of endoglucanase formation by the brown-rot fungus Gloeophyllum trabeum was investigated. This fungus produced endoglucanases in the presence of monosaccharides such as glucose or mannose as the sole carbon source, but the expression of these enzymes was four to five times higher in the presence of cellulose of cellobiose. In a lactose- or glucose-containing medium, endoglucanase production was induced by cellobiose. Glucose and glycerol did not repress enzyme production. We concluded that endoglucanase production by brown-rot fungi is inducible by cellulose and not subject to catabolite repression. Cellobiose is the most effective inducer of the system.


Accession: 002477352



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