FIG 2.

Transcription of pmrA declines following entry of C. burnetii into stationary phase. Luciferase assays were conducted after 2, 3, 4, 6, 10, and 14 days of growth in axenic medium of wild-type C. burnetii carrying lux fused to the pmrA promoter region. Bioluminescent readings are expressed as relative light units (RLU). Results are expressed as the means of results from two biological replicates from three independent experiments. Error bars indicate the standard deviations from the means, and asterisks indicate a statistically significant difference (*, P < 0.05; ****, P < 0.0001).