Differential regulation of orthologous chitinase genes in mycoparasitic Trichoderma species.

ABSTRACT: Mycoparasitic Trichoderma species have expanded numbers of fungal subgroup C chitinases that contain multiple carbohydrate binding modules and could thus be important for fungal cell wall degradation during the mycoparasitic attack. In this study, we analyzed the gene regulation of subgroup C chitinases in the mycoparasite Trichoderma virens. In addition to regulation by nutritional stimuli, we found complex expression patterns in different parts of the fungal colony, and also, the mode of cultivation strongly influenced subgroup C chitinase transcript levels. Thus, the regulation of these genes is governed by a combination of colony-internal and -external signals. Our results showed completely different expression profiles of subgroup C chitinase genes in T. virens than in a previous stud

SUBMITTER: Gruber S 

PROVIDER: S-EPMC3194852 | biostudies-literature | 2011 Oct

REPOSITORIES: biostudies-literature