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Factors influencing cellulase induction inFusarium sp.

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Abstract

Induction of cellulase was observed inFusarium sp. with reduction in lag period by lactose-pregrown cells as compared with glucose-pregrown cells. Insoluble cellulose (Sigmacell) induced maximum cellulase production in the induction medium. Supplementation of the culture growing on cellulose by cellobiose or glucose resulted in increased cellular growth and decreased cellulase production. Stepfeeding of cellobiose to the culture growting on carboxymethyl cellulose resulted in decreased cellulase production. Significant cellulase activity was detected in the culture filtrate of cells growing on Sigmacell supplemented with glucose, only when the glucose disappeared from the medium. This suggests that cellulase production may in part be regulated by catabolite repression.

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Authors and Affiliations

  1. Department of Microbiology, M. S. University of Baroda, 390 001, Baroda, India

    Leena S. Trivedi

  2. Microbiology Division, Department of Pharmacy, Faculty of Technology and Engineering, M. S. University of Baroda, 390 001, Baroda, India

    K. K. Rao

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  1. Leena S. Trivedi
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  2. K. K. Rao
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Trivedi, L.S., Rao, K.K. Factors influencing cellulase induction inFusarium sp.. Current Microbiology 3, 219–224 (1980). https://doi.org/10.1007/BF02602452

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