Growth phenotypes of the inactivation mutants. Wild-type (wt) (UI224), ΔphbA (IM70), ΔmshA(IM71), ΔcshA (IM72-3), ΔfhdA (IM73-104), ΔtprA (IM74-10), and ΔuvsC (ATr60cd1-14) strains were grown for 72 h at 37°C in YUU, YUU plus CPT (25 μM), YUU plus 4-NQO (0.3 μg/ml), YUU plus HU (10 mM), YUU plus BLEO (4 μg/ml), YUU plus MENA (0.05 mM), and YUU plus PARAQ (2 mM).