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Induction of the Trichoderma harzianum chitinolytic system is triggered by the chitin monomer, N-acetylglucosamine

Published online by Cambridge University Press:  01 September 1998

HEDVA SCHICKLER ,
SHOSHAN HARAN ,
AMOS OPPENHEIM  and
ILAN CHET
HEDVA SCHICKLER
Affiliation:
The Kennedy-Leigh Centre for Horticultural Research, The Hebrew University of Jerusalem, Faculty of Agricultural, Food and Environmental Quality Sciences, Rehovot 76100, Israel
SHOSHAN HARAN
Affiliation:
Otto Warburg Center for Agricultural Biotechnology, The Hebrew University of Jerusalem, Faculty of Agricultural, Food and Environmental Quality Sciences, Rehovot 76100, Israel
AMOS OPPENHEIM
Affiliation:
Hadassa Medical School, The Hebrew University of Jerusalem, Jerusalem 91010, Israel
ILAN CHET
Affiliation:
Otto Warburg Center for Agricultural Biotechnology, The Hebrew University of Jerusalem, Faculty of Agricultural, Food and Environmental Quality Sciences, Rehovot 76100, Israel
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Abstract

Chitin, an insoluble polymer, induces the chitinolytic system of Trichoderma harzianum, which is made up of two N-acetylglucosaminidases and four endochitinases. Only one N-acetylglucosaminidase, CHIT 102, was found to exhibit extracellular basal activity. The initial inducer of the chitinolytic system was found to be the chitin monomer N-acetylglucosamine, which preferentially induces CHIT 102.

Type
Research Article
Information
Mycological Research , Volume 102 , Issue 10 , September 1998 , pp. 1224 - 1226
Copyright
© The British Mycological Society 1998

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