A HYPERCELLULOLYTIC MUTANT OF FUSARIUM-OXYSPORUM

Multiple mutagenesis of Fusarium oxysporum DSM 841 resulted in enhance d yields of cellulases. The hypercellulolytic mutant (NTG-19) secretes high levels of extracellular cellulases on different cellulosic subst rates. Addition of surfactant, Tween-80, further increased enzyme secr etion by about 30%. The results on hydrolysis of wheat straw by parent strain, DSM 841 and mutant NTG-19 cellulases also revealed a signific ant improvement in the hydrolytic potential of the cellulolytic enzyme s from the mutant NTG-19.