FIG 1.

Growth curves of S. mutans UA159 and derivatives on TV media supplemented with various carbohydrates. (A and B) UA159, a manLMN deletion mutant, a manL deletion mutant (ΔmanL), a manL deletion mutant containing the empty pBGE vector (ΔmanL pBGE), and a manL deletion mutant complemented with pBGE-manL (ΔmanL pBGE-manL) were grown in TV medium supplemented with 20 mM GlcNAc (A) or 20 mM GlcN (B); (C) UA159 (light shapes) and a PTS enzyme I deletion mutant (dark shapes) were grown in TV medium supplemented with 20 mM glucose (triangles), 20 mM GlcNAc (squares), or 20 mM GlcN (circles).