Fig 1. Luciferase-based reporter assay.

(A) Luciferase was cloned behind the conJ promoter and transformed into wildtype, the ΔfphA- or the ΔlreA-deletion strains. After 16 h incubation in the dark, luminescence was measured every 10 min for 90 min under the indicated light conditions. (B) Measurement was performed like in (A), but the luciferase was under the control of the ccgA promoter. The graphs represent the mean of three biological replicates with two or three technical replicates. Error bars indicate standard deviation.