Effects of Arginine on Streptococcus mutans Growth, Virulence Gene Expression, and Stress Tolerance

Abstract excerpt

ABSTRACT Streptococcus mutans is a common constituent of oral biofilms and a primary etiologic agent of human dental caries. The bacteria associated with dental caries have potent abilities to produce organic acids from dietary carbohydrates and to grow and metabolize in acidic conditions. By contrast, many commensal bacteria produce ammonia through the arginine deiminase system (ADS), which moderates the pH of...

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