Abstract
The ability of Streptococcus species to selectively adhere to the oral epithelial cells of newborns was studied in vitro. On day 1 of life, mucosal cells from normal infants demonstrated selective attraction for the natural distribution of streptococci that would soon colonize these surfaces. Streptococcus salivarius and Streptococcus mitis adhered well in vitro to scraped cells from cheek and tongue surfaces. Streptococcus mutans, on the other hand, exhibited feeble or no adherence to cheek or tongue cells. Adherence of Escherichia coli to oral epithelial cells was also studied. The ability of strains of E. coli to adhere to cheek and tongue cells correlated solely with the presence of cell surface substances, probably pili. These observations, made on infants at the critical moment of their developing flora, strengthen the hypothesis that the ability of bacteria to adhere to surfaces is an important determinant of their ecological place in the oral microflora.
Publisher
American Society for Microbiology
Subject
Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology
Reference23 articles.
1. The location ofEscherichia coli in the pig intestine;Arbuckle J. B. R.;J. Med. Microbiol.,1970
2. Association of Escherichia coli with the small intestinal epithelium. I. Comparison of enteropathogenic and nonenteropathogenic porcine strains in pigs;Bertschinger H. V.;Infect. Immun.,1972
3. Adaptation of bacteria to growth on human mucous membranes with special reference to the throat flora of infants;Bloomfield A. L.;Johns Hopkins Hosp. Bull.,1922
4. The structure, function, synthesis and genetic control of bacterial pili and a molecular model for DNA and RNA transport in gram negative bacteria;Brinton C. C.;Trans. N. Y. Acad. Sci.,1965
5. Presence of various types of nonhaemolytic streptococci in dental plaque and in other sites of the oral cavity in man;Carlsson J.;Odontol. Rev.,1967
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