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Growth curves of different E. faecalis strains in ccM17MOPS medium (17) complemented with 1% arginine and 0.05% glucose (A) or 0.5% citrate (B). OD600 was measured during the growth of E. faecalis strains JH2-2 (•), the Δers mutant (▪), the complemented Δers mutant (○), and the arcA mutant (▴) (A) or the citF mutant (⧫) (B).
