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Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Firmicutes => Bacilli => Lactobacillales => Streptococcaceae => Streptococcus => Streptococcus macacae Beighton et al. 1984.
Member of the "Mutans group".
Member of the "Mutans group".
Gram positive cocci, grouped in chains. Alpha-haemolytic.
Transparent and 1 to 2 mm in diameter colonies, after 3 days of incubation. A white, 1
mm in diameter, erose, crumbly, type of colony may occur.
Growth at 37.0°C, no growth at 45 °C. Grow poorly in air, but growth is stimulated
by the presence of CO2. Growth on : Trypticase soy agar, Sheep blood agar,
Brain-hearth infusion agar / broth.
mm in diameter, erose, crumbly, type of colony may occur.
Growth at 37.0°C, no growth at 45 °C. Grow poorly in air, but growth is stimulated
by the presence of CO2. Growth on : Trypticase soy agar, Sheep blood agar,
Brain-hearth infusion agar / broth.
Isolated from the dental plaque of monkeys (Macaca fascicularis) & humans.
Unknown (isolated primarily from dental plaque samples). A possible cause of endocarditis.
- Bergey’s Manual of Determinative Bacteriology, 9th ed., 1994.
- Beighton D., Hayday H., Russell R.R.B. & Whiley R.A.: Streptococcus macacae sp. nov., from dental plaque of monkeys
(Macaca fascicularis). Int. J. Syst. Bacteriol., 1984, 34, 332-335. - Sato Y., Okamoto-Shibayama K., Kagami A. & Yamamoto Y.: Does Streptococcus macacae Reside in Human Mouths? Bull
Tokyo Dent Coll, VOL.47;NO.2;PAGE.86-88(2006).
Mannitol, N-acetyl glucosamine, amygdalin, cellobiose, fructose, glucose, galactose,
maltose, sucrose, trehalose, raffinose, hydrolysis of esculin, growth with 40% bile &
growth with 0.25% optocin - positive.
Adonitol, arabinose, glycerol, sorbose, xylitol, xylose, ADH, ribose, inulin, growth at pH
9.6 & growth with 6.5% NaCl - negative.
Sorbitol is fermented slowly, starch and blue dextran are weakly hydrolyzed
maltose, sucrose, trehalose, raffinose, hydrolysis of esculin, growth with 40% bile &
growth with 0.25% optocin - positive.
Adonitol, arabinose, glycerol, sorbose, xylitol, xylose, ADH, ribose, inulin, growth at pH
9.6 & growth with 6.5% NaCl - negative.
Sorbitol is fermented slowly, starch and blue dextran are weakly hydrolyzed
(c) Costin Stoica
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