Fig. 3
From: Regulation of heterologous subtilin production in Bacillus subtilis W168
Activity of spa promoters in B. subtilis W168 double mutants. The activity of spa promoters in double mutants, ΔabrB ΔsigH (A) and ΔabrB Δspo0A (B), was evaluated and presented as described for Fig. 2. The dynamics of the promoter activity in double mutants during growth are shown in Additional file 4: Fig. S3. (C) represents the activity of the spaB promoter in different B. subtilis W168-derived genetic backgrounds. Error bars represent the standard deviations from two biological replicates with each measurement carried out in triplicates. ns not significant, *p ≤ 0.05, **p ≤ 0.01, ***p ≤ 0.001,****p ≤ 0.0001