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In vitro growth kinetics of M. tuberculosis Erdman wild type and the five rpf deletion mutant strains in Middlebrook 7H9 medium at 37°C with agitation. The ΔRv1009 strain used in this experiment was mc23126. We also found that strain mc23126A (ΔRv1009 rev) grew in a manner indistinguishable from wild type in 7H9 medium and that the number of CFU at each time point was similar for each of the strains tested (not shown).
