Induction of steroidal 11 beta-hydroxylase of Cochliobolus lunatus.

: The induction of steroidal 11 beta-hydroxylase of Cochliobolus lunatus was studied and the effect of the structure of steroid inducers and additives on the extent of enzyme induction determined. 21-Hydroxyprogesterone was found to be the best inducer and Torlak peptone 1 the best additive. A certain parallelism was found between the induction of 11 beta-hydroxylase of Cochliobolus lunatus and 11 alpha-hydroxylase of Rhizopus nigricans.