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. 1983 Jul;46(1):17–21. doi: 10.1128/aem.46.1.17-21.1983

Comparison of β-Glucosidase Activities in Different Streptomyces Strains

Natalia Moldoveanu 1,†, Dieter Kluepfel 1
PMCID: PMC239260  PMID: 16346337

Abstract

Cellobiase (β-glucosidase) production was compared for two streptomycetes: Streptomyces flavogriseus, a known producer of cellulase complex, and Streptomyces sp. strain CB-12, a strain isolated for its rapid growth on cellobiose. The optimal conditions for enzyme activity were established in relation to pH, temperature, enzyme stability, and substrate affinity. The production of β-glucosidase by the two strains depended on the carbon substrate in the medium. Cellobiose was found to repress the biosynthesis of the enzyme in S. flavogriseus and to stimulate its production in strain CB-12. The biosynthesis of the enzyme correlated well with the accumulation of glucose in the culture filtrates. The combined action of the β-glucosidases produced by the two Streptomyces strains might allow a better utilization of the reaction products which arise during the biodegradation of cellulose.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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