New Zealand Journal of Crop and Horticultural Science abstracts

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Review 

Genetic basis of mycoparasitism: a mechanism of biological control by species of Trichoderma

J. M. Steyaert¹
H. J. Ridgway^1,2
Y. Elad³
A. Stewart^1,2,†

¹Soil, Plant and Ecological Sciences Division
 P.O. Box 84, Lincoln University
 Canterbury, New Zealand
 email: stewarta@lincoln.ac.nz

²National Centre for Advanced Bio-Protection Technologies
 P.O. Box 84, Lincoln University
 Canterbury, New Zealand

³Department of Plant Pathology
 ARO, The Volcani Center
 Bet Dagan 50250, Israel

^†Corresponding author

Abstract  Biocontrol of fungal plant pathogens through the use of mycoparasitic fungi is an environmentally sustainable approach to management of plant diseases. Mycoparasitism by Trichoderma spp. primarily involves production of cell-wall degrading enzymes. Isolation and characterisation of the corresponding genes have revealed major insights into the underlying genetic basis of mycoparasitism, implicating various regulatory pathways such as carbon and nitrogen catabolite repression. A summary is presented here of the current state of knowledge in molecular regulation of mycoparasitism by Trichoderma species.

Keywords  antagonist; biocontrol; cell wall degrading enzymes; genetics; lysis; mycoparasitism; Trichoderma

H03038 Received 9 April 2003; accepted 11 August 2003; Online publication date 3 November 2003
New Zealand Journal of Crop and Horticultural Science, 2003, Vol. 31: 281-291
0014-0671/03/3104-0281 $7.00 © The Royal Society of New Zealand 2003

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