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A) and B) Plating efficiency of indicated strains on indicated media containing chrolamphenicol. C) and D) Phase-contrast images of YBB2003 (ΔrctA/vector) (C) and YBB2004 (ΔrctA/rctB +) (D) after 4 hr of induction by IPTG. bar = 2 µm.
