Effect of temperature on the production of cellulases, xylanases and lytic enzymes by selected Trichoderma reesei mutants

Piotr Janas, Zdzisław Targoński

Abstract


The effect of temperature in the rangę of 26-38°C on the production of cellulases, xylanases and lytic enzymes by four mutant strains of Trichoderma reesei was analysed. On the basis of these investigations three thermosensitive strains (M-7. RUT C 30 and VTT-D-78085) which showed reduced excretion of the above mentioned enzymes as well as protein and a thermoresistant mutant (VTT-D-79I24) which grew within a temperature range of 26-34°C were characterized. Higher temperature caused an increase in the level of xylanolytic enzymes produced by the four mutants. In addition. it effected the complex composition of cellulolytic enzymes secreted by VTT-D-79l 24 (i.c. increased and reduced excertion of (β-glucosidase and β-1,4-endoglucanase respectively).

Keywords


cellulases; lytic enzymes; temperature; Trichoderma reesei; xylanases

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DOI: https://doi.org/10.5586/am.1995.022

Journal ISSN:
  • 2353-074X (online)
  • 0001-625X (print; ceased since 2015)
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Publisher
Polish Botanical Society