Figure 4. Expression of E. coli RNR classes during biofilm formation.

Curves show fold changes expression of the different RNR promoter classes (PnrdAB – class Ia; PnrdDG – class III; PnrdHIEF – class Ib; pETS130 as a empty vector) from different times points during the biofilm formation of MG1655 (A) and E2348/69 (B) E. coli strains. All values are normalized respect the expression detected in biofilm after 10 h. The values shown are the means of three independent experiments with six wells in each and the error bars represent standard deviations.