Streptococcus mutans

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Streptococcus

 [strep″to-kok´us]
a genus of gram-positive, facultatively aerobic cocci (family Streptococcaceae) occurring in pairs or chains. It is separable into the pyogenic group, the viridans group, the enterococcus group, and the lactic group. The first group includes the beta-hemolytic human and animal pathogens; the second and third include alpha-hemolytic parasitic forms occurring as normal flora in the upper respiratory tract and the intestinal tract, respectively; and the fourth is made up of saprophytic forms.
Streptococcus mu´tans a species implicated in dental caries.
Streptococcus pneumo´niae a small, slightly elongated, encapsulated coccus, one end of which is pointed or lance-shaped; the organisms commonly occur in pairs. This is the most common cause of lobar pneumonia, and it also causes serious forms of meningitis, septicemia, empyema, and peritonitis. There are some 80 serotypes distinguished by the polysaccharide hapten of the capsular substance. Called also pneumococcus.
Streptococcus pyo´genes a beta-hemolytic, toxigenic, pyogenic species that causes septic sore throat, scarlet fever, rheumatic fever, puerperal fever, acute glomerulonephritis, and other conditions in humans.

Strep·to·coc·cus mu·tans

a bacterial species associated with the production of dental caries in humans and in some other animals and with subacute endocarditis.

Strep·to·coc·cus mu·tans

(strep'tō-kok'ŭs myū'tanz)
A bacterial species associated with the production of dental caries in humans and in some other animals and with subacute endocarditis.

Strep·to·coc·cus mu·tans

(strep'tō-kok'ŭs myū'tanz)
A bacterial species associated with the production of dental caries in humans and with subacute endocarditis.
References in periodicals archive ?
According to agar diffusion test method there was no growth inhibition zone in the lawn growth of S.
One hundred and sixteen isolates of gram-positive cocci with colony morphology, positive mannitol and sorbitol fermentation compatible with S.
Therefore, the objective of this work was to study the anticaries mechanism of Fe using a S.
To standardize the collection of samples of dental plaque, a pilot test was performed in which a periodontal probe (Williams) was used with which the weight in grams was calibrated for each substrate, which permitted establishing the amount of plaque necessary to obtain efficient DNA, which was validated by using reference strains of S.
Results: Analysis revealed a statistically significant bactericidal effect of S.
Dado los antecedentes antes mencionados, el objetivo de este trabajo fue implementar la metodologia de reaccion en cadena de la polimerasa (PCR) para detectar la presencia de S.
Probing deeper into this peculiar property of java, scientists at two Italian universities conducted laboratory tests that showed some coffee molecules prevent adhesion of S.