Adherence of Veillonella Species Mediated by Extracellular Glucosyltransferase from Streptococcus salivarius
نویسندگان
چکیده
منابع مشابه
Differential inhibition of Streptococcus mutans in vitro adherence by anti-glucosyltransferase antibodies.
Antibodies prepared against an insoluble-soluble glucan-synthesizing fraction significantly inhibited in vitro adherence of Streptococcus mutans, whereas antibodies directed against a soluble glucan-synthesizing fraction were much less inhibitory.
متن کاملDoes an increase in membrane unsaturated fatty acids account for Tween 80 stimulation of glucosyltransferase secretion by Streptococcus salivarius?
When Streptococcus salivarius was grown in batch culture in the presence of various Tween detergents, the fatty acid moiety of the detergent was incorporated into the lipids of its membrane. Tween 80 (containing primarily oleic acid) markedly stimulated the production of extracellular glucosyltransferase and also increased the degree of unsaturation of the membrane lipid fatty acids. The possib...
متن کاملThe pH-dependent expression of the urease operon in Streptococcus salivarius is mediated by CodY.
Urease gene expression in Streptococcus salivarius 57.I, a strain of one of the major alkali producers in the mouth, is induced by acidic pH and excess amounts of carbohydrate. Expression is controlled primarily at the transcriptional level from a promoter, pureI. Recent sequencing analysis revealed a CodY box located 2 bases 5' to the -35 element of pureI. Using continuous chemostat culture, t...
متن کاملEffect of Bacteriocin Produced by Lactobacillus casei with Probiotic Potential Isolated from Milk on the Ability of Biofilm Production by Streptococcus salivarius Obtained from Dental Plaque
Background and purpose: Dental plaque is a biofilm that is formed on the surface of the tooth. Carious lesions are caused by inappropriate ecological changes in microbial flora of the plaque biofilm. In this study, the effect of Lactobacillus casei bacteriocin, isolated from dairy products, was investigated on Streptococcus salivarius biofilm formation. Materials and methods: In this experimen...
متن کاملRelationship of cell surface morphology and composition of Streptococcus salivarius K+ to adherence and hydrophobicity.
The cell surfaces of a range of variants of Streptococcus salivarius HB, altered in cell wall antigen composition, were compared with those of the parent with respect to adherence, ability to adsorb to hexadecane, morphology, and exposure of lipoteichoic acid (LTA). Adherence to host surfaces was measured by using both saliva-coated hydroxyapatite beads and tissue-cultured HeLa cells, and inter...
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ژورنال
عنوان ژورنال: Infection and Immunity
سال: 1977
ISSN: 0019-9567,1098-5522
DOI: 10.1128/iai.18.3.726-734.1977