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Stationary-phase-induced reversions for his (A), met (B), or leu (C) of PERM573 (ytkD mutM yfhQ) (ΔGO) and PERM731 (ΔGO amyE::Pspac-mutSL) B. subtilis strains as described in Materials and Methods. Results show the average number of accumulated revertants in six different selection plates; error bars show one standard error. This experiment was performed at least three times.
