Figure 3
From: The YvfTU Two-component System is involved in plcR expression in Bacillus cereus
yvfT directed lacZ expression in B. cereus WT or yvfTU mutant strains. β-galactosidase activity was measured in either the WT strain (circles) or in the yvfTU mutant (triangles) harbouring pHT-yvfT'Z (649 bp yvfT promoter region cloned upstream from the promoterless lacZ reporter gene in pHT304-18Z). Time 0 indicates the onset of the stationary phase of growth. Each curve is the mean value of triplicate measurements, representative of 3 independent experiments. Bars represent standard deviation.