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A Levansucrase from Streptococcus mutans
Caries Research, 2009One of the predominant bacteria in early dental plaque, Streptococcus mutans, has been shown to synthesize levansucrase. This enzyme was obtained from the supernatant fluid of a glucose-broth culture. Purification of the enzyme was achieved in two steps by adsorption on hydroxylapatite followed by isoelectric focusing and fractionation.
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Chromosomal Deletions in Streptococcus mutans
1997The oral bacterium Streptococcus mutans possesses the ability to ferment a wide range of carbohydrates, which results in the production of acids that can cause demineralisation of tooth enamel and subsequent dental caries. However, it has been shown that approximately 11% of independent isolates of S.
C R, Lewis, R R, Russell
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Lipid Composition of Streptococcus mutans
Caries Research, 2009Cellular fatty acids and extractable intact lipids of five strains of Streptococcus mutans grown on chemically defined medium were studied. The fatty acids were characterized by the predominance of the C<sub>16:0</sub> and C<sub>18:1</sub> components as well as traces of cyclopropane acids. The neutral lipids showed the presence
E I, Szabo, B H, Amdur, S S, Socransky
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Invertase activity in Streptococcus mutans and Streptococcus sanguis
Archives of Oral Biology, 1973Abstract Toluene treatment of intact cells revealed invertase-like activity in Streptococcus mutans K1-R (cariogenic) and in Streptococcus sanguis 903–1600 (noncariogenic). The activity was identified as a β- d -fructofuranoside fructohydrolase (invertase; EC.
M M, McCabe, E E, Smith, R A, Cowman
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Extracellular invertase in Streptococcus mutans and Streptococcus salivarius
Life Sciences, 1974Summary Cultures of representative oral streptococci were fractionated and assayed for glycosyltransferases and invertase. Considerable extracellular invertase activity was found in five Streptococcus mutans strains and one Streptococcus salivarius strain. For example, in cultures of S.
B M, Chassy +5 more
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Nutritional Requirements of Streptococcus mutans
Caries Research, 2009Ten strains of Streptococcus mutans, representing four serological groups, have been grown in chemically defined media. For anaerobic growth, one of the strains required the following organic compounds: glucose, cysteine (or thioglycolic acid), biotin, p-aminobenzoic acid, thiamine, riboflavin, pyridoxine, pantothenic acid and nicotinic acid.
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Relatedness and Classification of Streptococcus mutans and "Mutans-like" Streptococci
Journal of Dental Research, 1984The "mutans-like" streptococci can be separated into five species (Streptococcus mutans, S. rattus, S. sobrinus, S. cricetus, and S. ferus ) that belong to the same rRNA homology cluster. New valuable chemical characters for differentiation of the five species - such as peptidoglycan type, presence of cell wall teichoic acid, and cell wall sugar ...
K H, Schleifer +3 more
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Ribose biosynthesis in Streptococcus mutans
Archives of Oral Biology, 1977Abstract Crude extracts of Streptococcus salivarius ATCC 25975 and the five serological types of Streptococcus mutans were assayed under various conditions for the enzymes glucose 6-phosphate dehydrogenase, 6-phosphogluconate dehydrogenase, transketolase and transaldolase.
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Adhesion of Streptococcus rattus and Streptococcus mutans to metal surfaces
European Journal of Oral Sciences, 1988Abstract – The adhesion of Streptococcus rattus BHT and Streptococcus mutans IB to metal specimens of amalgam, silver, tin and copper was studied using (6‐3H)thymidine labeled cells. In the standard assay the metal specimens were suspended by a nylon thread in an adhesion solution containing a chemically defined bacterial growth medium (FMC), sucrose,
C, Branting +4 more
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Anti-Biofilm Activity of Cannabigerol against Streptococcus mutans
Microorganisms, 2021Ruth Gallily +2 more
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