MORPHOLOGY AND ANTIFUNGAL ACTION OF THE GENUS TRICHODERMA CULTIVATED IN GEOMETRICALLY DISSIMILAR BIOREACTORS

Trichodermin, a microbial biofungicide obtained by the cultivation of the genus Trichoderma in geometrically dissimilar bioreactors, was inv estigated both in production and the application in food plants at dif ferent stages of growth. The growth of the producer was considerably b etter in the counterflow mixing system (CFMS) in comparison with the t urbine mixing system (STMS). Morphological changes of the strain were studied during batch fermentation at different mixing regimes. The cha racteristic dynamics of the morphology were better when using CFMS. Th e biofungicide trichodermin produced by CFMS showed a somewhat higher activity for barley and sugar beet.