Fig. 2From: Evaluation of an oxygen‐dependent self‐inducible surfactin synthesis in B. subtilis by substitution of native promoter PsrfA by anaerobically active PnarG and PnasDTime course of Miller units determined by the Miller Assay representing expression of promoters PsrfA, PnarG and PnasD. Data recorded until CDWmax of cultivation of strains B. subtilis KM1016 (PsrfA-lacZ), MG1 (PnarG-lacZ) and MG5 (PnasD-lacZ) in a mineral salt medium employing 40 g/L glucose, 0.1 mol/L NH4+ and 0.1 mol/L NO3− in baffled shake flasks with three different relative filling volumes (Rv) of 10%, 50% and 100% representing different oxygen availabilitiesBack to article page