Synthesis of xylanase byTrichoderma reesei

  • K. Chaudhary
  • P. Tauro
Research Papers


Xylanase is synthesized byTrichoderma reesei when grown in the presence of xylan, cellulose or phosphocellulose. Xylan is the best inducer of xylanase. Other cellulolytic enzymes such as endoglucanase and FPase are synthesized in small quantities, but the level of β-glucosidase is very high. Mutants with altered levels of cellulolytic enzymes showed an unaltered level of xylanase, suggesting its independent control in this organism.


Enzyme Cellulose Como Altered Level Trichoderma 
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Une xylanase est synthétisée parTrichoderma reesei lorsque cet organisme est cultivé en présence de xylane, de cellulose ou de phospho-cellulose. Le xylane est le meilleur inducteur. D'autres enzymes cellulolytiques, notamment une endo-glucanase et une FP-ase, sont synthétisées en faibles quantités, mais le niveau en β-glucosidase est trés élevé. Des mutants ayant des niveaux d'enzymes cellulolytiques modifiés présentent un niveau de xylanase inchangé, ce qui suggère que cette enzyme est contrôlée de façon indépendante.


Trichoderma reesei sintetiza xilanasa cuando se hace crecer en presencia de xilano, celulosa o fosfocelulosa. El xilano es el mejor inductor de xilanosa. Tambien se producen otros enzimas celulolíticos en pequeñas cantidades como endoglucanasa y FPasa aunque la producción de β-glucosidasa puede alcanzar niveles elevados. Mutantes con niveles de enzimas celulolíticos alterados no mostraron ninguna modificación en los niveles de xilanasa sugiriéndose pues un control independiente de dicho enzima en este organismo.


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  1. Chaudhary, K. 1981 Control of cellulose hydrolysis by fungi. Ph.D. Thesis. Department of Microbiology, Haryana Agricultural University, India.Google Scholar
  2. Chaudhary, K. &Tauro, P. 1982a Sequential release of cellulase enzymes during germination ofTrichoderma reesei spores.Journal of Biosciences 4, 281–286.Google Scholar
  3. Chaudhary, K. &Tauro, P. 1982b Selective induction of β-glucosidase inT. reesei by xylan.European Journal of Applied Microbiology & Biotechnology 15, 185–187.Google Scholar
  4. Dekker, R.F.H. 1983 Bioconversion of hemicellulose: aspects of hemicellulase production byT. reesei QM 9414 and enzymatic saccharification of hemicellulose.Biotechnology and Bioengineering 25, 1127–1146.Google Scholar
  5. Ghose, T.K. &Bisaria, V.S. 1979 Studies on the mechanism of enzymatic hydrolysis of cellulosic substances.Biotechnology and Bioengineering 21, 131–146.PubMedGoogle Scholar
  6. Herr, D. 1979 Secretion of cellulases and β-glucosidases byT. viride TTCC 1438 in submerged culture on different substrates.Biotechnology & Bioengineering 21, 1361–1367.Google Scholar
  7. Linko, M., Markkanen, P., Bailey, M. & Leisola, M. 1978. Production of cellulases and hemicellulases byTrichoderma viride. InProceedings of Symposium on Bioconversion of Cellulosic Substances into Energy, Chemicals and Microbial proteins. ed. Ghose, T.K. pp. 329–350. New Delhi: Thompson Press.Google Scholar
  8. Lowry, C.H., Rosenbrough, N.J., Farr, A.L. &Randall, R.J. 1951 Protein measurement with Folin phenol reagent.Journal of Biological Chemistry 193, 265–275.PubMedGoogle Scholar
  9. Mandels, M. 1975 Microbial sources of cellulase.Biotechnology and Bioengineering Symposium 5, 81–105.PubMedGoogle Scholar
  10. Reese, E.T., Siu, R.G.H. &Levinson, H.S. 1950 The biological degradation of cellulose derivatives and its relationship to the mechanism of cellulose hydrolysis.Journal of Bacteriology 59, 485–497.PubMedGoogle Scholar
  11. Reilly, P.J. 1980 Xylanases—Structure & Function. InTrends in the Biology of Fermentation for Fuel and Chemicals. ed. Hollaender, A. pp. 111–130. New York: Plenum Press.Google Scholar
  12. Wood, T.M. 1980 Cooperative action between enzymes involved in the solubilization of Cellulosic materials.Symposium abstracts: 6th International Fermentation Symposium, July 20–25, Ontario, Canada.Google Scholar

Copyright information

© Oxford University Press 1986

Authors and Affiliations

  • K. Chaudhary
    • 1
  • P. Tauro
    • 1
  1. 1.Department of MicrobiologyHaryana Agricultural UniversityHissarIndia

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