Streptococcus suis is one of the normal bacteria in the oral cavity, with the early colonization of the tooth surface, through the plant blood coagulation-like adhesion, non-plant blood coagulation-like adhesion to the receptors in saliva, adhesion to the acquired membrane ·Chinese scientific nameBlood StreptococcusTerritoriesBacterial communityDescriptionResident bacteria in the mouthfeaturesInventory of the ability to form Glucan
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1 Introduction
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2 Detailed Introduction
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? Discovery
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? Research
1 Introduction to editing Streptococcus suis is one of the oral normal bacterial groups, with the early colonization of tooth surface, through plant blood coagulation-like adhesion, non-plant blood coagulation and saliva receptor specific binding, adhesion to the acquired membrane, to maintain its stability with hydrophobic effect, can be associated with a variety of bacteria aggregation reaction, on the gum, It plays an important role in the formation of gingival plaque, and it is the main beneficial bacteria for periodontal disease to antagonize the suspicious pathogenic bacteria by producing hydrogen peroxide and blood chain.2 More about editing Streptococcus suis is one of the early bacteria that is colonized in the mouth and is a resident bacterium in the mouth.foundCarlsson (1971) for the first time, the symbiotic relationship between Streptococcus mutans and Streptococcus mutans was found, and the growth of Streptococcus suis required ethanol (p-aminobenzoic acid,pab), but when it was co-cultured with Streptococcus suis, no pAB was needed. Streptococcus suis has a certain caries effect on animals. Huxley (1973) The research on rat body found that the blood chain bacterium has obvious effect on promoting the occurrence of dental caries, but its caries strength is inferior to that of Streptococcus mutans. Westergren and Emilson (1982) Implanted 3 kinds of streptococcus from the human body into the oral cavity of rats, but no caries occurred. Holmberg, Hollander (1972) Laboratory study found that: Streptococcus suis and a variety of oral bacteria are antagonistic relations, such as Streptococcus mutans, saliva streptococcus (Stoeptococcus oralis), Lactobacillus, Actinomycetes and so on. Fujimura and Nakammura (1979) extracted from Streptococcus N2, a kind of bacterium that was 28x10 by Mr, was homogeneous in the electrophoresis, and had inhibitory effect on the heat instability and the endogenous and Ito actinomycetes. Shizukuishi and Other (1980) found that: Streptococcus ATCC1055 produced by Fucoidan can crack saliva glycoprotein, but also can be cracked in the milk oligosaccharide and be used by bacteria. Kaufman ET (1982) found in artificial caries model: Streptococcus g9b and Streptococcus mutans GS5 can produce a large number of plaque in vitro, but the extracellular substance produced by Streptococcus mutans is much more than that of Streptococcus suis. Robinovitch ET (1986) found that the receptors on Streptococcus mutans were sensitive to both heat and enzymes, and the electrical point was ph 5. 5, but not protein. Cowan, Taylor, Doyle (1987) The study proves that the coagulation of Streptococcus suis and the three sugars with salivary acid as terminal in saliva are specific, and Lamont and so on (1988) prove that different strains of Streptococcus suis combine with different peptides of saliva. The study of Jenkinsem, Carier (1988) showed that the adhesion of Streptococcus suis was determined by its cell wall protein, and the MR (43~45) X10 of the protein was examined. Rogers ET (1988) reported that blood Streptococcus can use peptide substances containing arginine to produce adhesion. Caufield, Dasanayaka, Li et al (2000) studied the colonization of Streptococcus in infants and young children, and found that the blood streptococcus was scattered in the oral cavity in the September months and was related to the eruption of teeth. It was also found that the number of Streptococcus mutans decreased gradually with the colonization of Streptococcus mutans in the mouth. [1]ResearchStreptococcus suis also has the ability to form glucan. Kopec, Smith, Wender and Other (2001) studies have shown that the polysaccharide produced in the sugar solution of Streptococcus suis is mainly only 11, 6 key connections, only rarely 11, 3 keys are connected.
(Streptococcus suis) S. Sanguis
