Name:S. mutans group
Morphology:chains, or short rods
Gram Stain:Gram-Positive Cocci
Growth Characteristics:On blood agar colonies are often hard and adherent. Strains produce Beta or gamma hemolysis.
Test Profile:Bile esculin negative. Does not grow in 6.5% NaCl.
Description:aerobic "Viridans group streptococci" Cause dental caries. Are able to produce acid from a wide variety of carbohydrates. Produce water soluble and insoluble polysaccharides from sucrose.