Results 231 to 240 of about 223,034 (271)

Genomic and phenotypic diversity of Streptococcus mutans.

Journal of Oral Biosciences, 2019
BACKGROUND Streptococcus mutans (S. mutans) is a commensal microorganism found in the human oral cavity. However, due to environmental changes, selective pressures, and the presence of a variable genome, it adapts and may acquire new physiological and ...
Claudia María Bedoya-Correa, Ramiro Javier Rincón Rodríguez, M. Parada-Sanchez   +2 more
semanticscholar   +1 more source

Cariogenicity of Mutants of Streptococcus mutans

Journal of Dental Research, 1980
In this study, we induced a number of mutants of S. mutans differing in their abilities to synthesize glucan and produce acid. When tested for cariogenicity in gnotobiotic rats, "high pH" mutants caused less caries, but could not supplant a cariogenic parent strain.
M W, Mao, S, Rosen
openaire   +2 more sources

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
openaire   +2 more sources

Relatedness and Classification of Streptococcus mutans and "Mutans-like" Streptococci

Journal of Dental Research, 1984
The "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, R, Kilpper-Bälz, J, Kraus, F, Gehring   +3 more
openaire   +2 more sources

A Levansucrase from Streptococcus mutans

Caries Research, 2009
One 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.
openaire   +2 more sources

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
openaire   +2 more sources

Influence of naringenin on the biofilm formation of Streptococcus mutans.

E -journal of dentistry, 2018
OBJECTIVES To evaluate the effect of naringenin on the biofilm formation of Streptococcus mutans (S. mutans), and to investigate its mechanisms of action and biological toxicity.
J. Yue, Hongye Yang, Si-ying Liu, F. Song, Jingmei Guo, Cui Huang   +5 more
semanticscholar   +1 more source

Nicotinamide could reduce growth and cariogenic virulence of Streptococcus mutans

Journal of Oral Microbiology, 2022
Meiling Jing, Yangyang Pan, Xuedong Zhou   +2 more
exaly  

STREPTOCOCCUS MUTANS AND HUMAN CARIES

Nutrition Reviews, 2009
openaire   +2 more sources

Streptococcus mutans, Caries and Simulation Models

Nutrients, 2010
Arthur C Ouwehand
exaly