Fig. 3From: Citrobacter amalonaticus Y19 for constitutive expression of carbon monoxide-dependent hydrogen-production machineryComparison of promoter strengths of various constitutively expressed genes in C. amalonaticus Y19. The relative mRNA abundance of the mutated version of narG* was estimated based on the mRNA abundance of narG in E. coli. C. amalonaticus Y19 was grown on glucose or maltose and in the presence of 20% COBack to article page