Figure 4

Resistance towards pH stress. The bacteria were grown in Middlebrook 7H9 broth with OADC at pH 7 and pH 5 during 11 days; the ATP content was recorded by quantification of the amount of ATP in the cultures. The amount of ATP is represented as RLU (relative light units). A: WT and mutant MAV_1778; B: WT and mutant MAV_3128; C: WT and mutant MAV_3625; D: WT and mutant MAV_2599.