Figure 5From: Hfq regulates the expression of the thermostable direct hemolysin gene in Vibrio parahaemolyticusActivities of the tdhA and tdhS gene promoters in the WT and Δ hfq strains. β-galactosidase activity measured in the parental WT strain (black bars) and the Δhfq strain (open bars). pHN1/WT, pHN1 harboring tdhA gene promoter in V. parahaemolyticus strain RIMD2210633; pHN2/WT, pHN2 harboring tdhS gene promoter in V. parahaemolyticus strain RIMD2210633; pHRP309/WT, pHRP309 in V. parahaemolyticus strain RIMD2210633; pHN1/Δhfq, pHN1 harboring tdhA gene promoter in Δhfq strain; pHN2/Δhfq, pHN2 harboring tdhS gene promoter in Δhfq strain; pHRP309/Δhfq, pHRP309 in Δhfq strain. Data in Miller units are the means ± SDs of 5 independent experiments. *, P <0.01.Back to article page