Results 311 to 320 of about 264,165 (355)

Streptococcus mutans, not detected?

Oral Microbiology and Immunology, 1989
The growth of Streptococcus mutans was followed for three years in 24 healthy 12‐17 year‐old children, who were selected for the study on the basis of undetectable levels of salivary S. mutans. The saliva samples were cultured by a dip‐slide method based on mitis‐salivarius agar supplemented with sucrose and bacitracin.
S, Alaluusua, L, Grönroos, E, Kleemola-Kujala   +2 more
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Lipid Composition of Streptococcus mutans

Caries Research, 1978
Cellular 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 C16:0 and C18:1 components as well as traces of cyclopropane acids.
E I, Szabo, B H, Amdur, S S, Socransky
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Chromosomal Deletions in Streptococcus mutans

1997
The 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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Invertase activity in Streptococcus mutans and Streptococcus sanguis

Archives of Oral Biology, 1973
Abstract 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, 1974
Summary 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, R M, Bielawski, J R, Beall, E V, Porter, M I, Krichevsky, J A, Donkersloot   +5 more
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Nutritional Requirements of Streptococcus mutans

Caries Research, 1970
Ten 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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Virulence properties of Streptococcus Mutans

Frontiers in Bioscience, 2004
Streptococcus mutans is considered one of the primary causative agents of dental caries and can also be a source of infective endocarditis. The main virulence factors associated with cariogenicity include adhesion, acidogenicity, and acid tolerance. Each of these properties works coordinately to alter dental plaque ecology.
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A Levansucrase from Streptococcus mutans

Caries Research, 1970
One of the predominant bacteria in early dental plaque, Streptococcus mutans , has been shown to synthesize levansucrase.
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Streptococcus mutans Dextransucrase: A Review

1978
Publisher Summary Two factors contribute to the cariogenic potential of Streptococcus mutans ( S. mutuns). These factors include its ability to produce high yields of lactic acid from a variety of carbon sources and its ability to adhere to hard surfaces by the action of its extracellular polysaccharides. S.
T J, Montville, C L, Cooney, A J, Sinskey   +2 more
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Specific Lactobacillus/Mutans Streptococcus Co-aggregation

Journal of Dental Research, 2009
Selective interaction of mutans streptococci with benign bacteria could present an opportunity for their removal from the mouth without disruption of other oral flora. This study was conducted to find probiotic lactobacilli that could specifically co-aggregate in vitro with mutans streptococci, but not with other plaque commensals.
C, Lang, M, Böttner, C, Holz, M, Veen, M, Ryser, A, Reindl, M, Pompejus, J M, Tanzer   +7 more
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