Fig. 10

The RpoE activity measured with the levels of expression of the rpoHP3::lacZ fusion is higher in P- than in N-starved cells. The strain ENZ2489 (phnE ⁺ rseP ⁺) was inoculated 1:500 (time zero) into P- and N-limiting media and further incubated. The OD₆₀₀ (dashed lines) and the β-galactosidase activity were determined (solid lines). The symbols represent two independent experiments