Summary
The oral cavity provides a varied habitat supporting the growth of very complex bacterial flora. These bacteria can be broadly divided into two main metabolic groups: saccharolytic bacteria which convert carbohydrates into short chain organic acids and asaccharolytic bacteria which utilize nitrogenous substrates for energy. We studied carbohydrate utilization, the influence of protein hydrolysates on bacterial growth and the fermentation of amino acids in different species to facilitate a clearer understanding of the factors which may control the ecological distribution of bacteriain vivo and provide a basis for the explanation of their role in periodontal diseases and other clinical infections throughout the body.
Zusammenfassung
Die Mundhöhle stellt einen reichhaltigen Nährboden für das Wachstum einer sehr komplexen bakteriellen Flora dar. Diese Bakterien können in zwei große metabolische Gruppen eingeteilt werden: die saccharolytischen Bakterien, welche Kohlenhydrate in kurzkettige organische Säuren umwandeln, und asaccharolytische Bakterien, welche stickstoffhaltiges Substrat zur Energiegewinnung benutzen. Wir untersuchten Kohlenhydratverwertung, den Einfluß von Proteinhydrolysaten auf das Bakterienwachstum und die Fermentierung von Aminosäuren bei verschiedenen Spezies. Dies geschah in der Hoffnung, ein klareres Verständnis der Faktoren zu erhalten, welche die ökologische Verteilung der Bakterienin vivo steuern, und eine Erklärungsgrundlage für ihre Funktion bei parodontalen Erkrankungen oder anderen klinischen Infektionen des menschlichen Körpers zu schaffen.
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References
Hardie, J. M., Shah, H. N. Factors controlling the microbial flora of the mouth. Eur. J. Chemoth. Antibiotics 2 (1982) 3–11.
Tanzer, J. M.: Sucrose metabolism ofStreptococcus mutans, Streptococcus mutans and dental caries. In:Fitzgerald, Betheda, R. J. (eds.): Dept. of Health, Education and Welfare Publication No. (NIH) 74–286 (1973) 25–31.
Reizer, J., Deutscher, J., Suturna, S., Thompson, J., Saier, M. H., Sugar accumulation in gram-positive bacteria: exclusion and expulsion mechanisms. Trends in Biochemical Science 10 (1985) 32–35.
Yamada, T., Carlsson, J. The role of pyruvate formate-lyase in glucose metabolism ofStreptococcus mutans. In:Stiles, H. M., Loesche, W. J., O'Brien, T. C. (eds.): Microbial aspects of dental caries. Information Retrieval Inc., Washington, D. C. and London 1976, pp. 809–919.
Geddes, D. A. M. Acids produced by human dental plaque. Caries Res. 9 (1975) 98–109.
Carisson, J. Biochemical aspects on the ecology ofStreptococcus mutans. In:Hamada, S., Michalek, S. M., Kiyono, H., Menaker, L., McGhee, J. R. (eds.): Molecular microbiology and immunology ofStreptococcus mutans. Spottiswoode + Ballantyne, Colchester + London 1986, pp. 93–103.
Gharbia, S. E., Shah, H. N. Glucose utilization and growth response to protein hydrolysates byFusobacterium species. Curr. Microbiol. 17 (1988) 229–234.
Shah, H. N., Williams, R. A. D. Utilization of glucose and amino acids byBacteroides intermedius andBacteroides gingivalis. Curr. Microbiol. 15 (1987) 241–246.
Shah, H. N., Williams, R. A. D. Catabolism of aspartate and asparagine byBacteroides intermedius andBacteroides gingivalis. Curr. Microbiol. 15 (1987) 313–318.
Robrish, S. A., Oliver, C., Thompson, J. Amino acid dependent transport of sugars byFusobacterium nucleatum ATCC 10953. J. Bacteriol. 169 (1987) 3891–3897.
ter Steeg, P. F., van der Hoeven, M. H., de Jong, P. J., van Munster, J., Jansen, M. J. H. Modelling the gingival pocket by enrichment of subgingival microflora in human serum in chemostats. Microbial Ecology in Health and Disease. I (1988) 73–84.
Pittman, K. A., Lakshnianan, S., Bryant, M. P. Oligopeptide uptake byBacteroides ruminicola. J. Bacteriol. 93 (1967) 1499–1508.
Carlsson, J., Hermann, B. F., Hofling, J. F., Sundqvist, G. K. Degradation of the human proteinase inhibitors alpha-1 antritrypsin and alpha-2-macroglobulin byBacteroides gingivalis. Infect. Immun 43 (1984) 644–648.
Payne, J., Gilvarg, C.: Transport of peptides in bacteria. In:Rosen, B. P., Dekker, M. (eds.): Bacterial transport. 1978, pp. 325–383.
Slots, J.: Importance of black-pigmentedBacteroides in human periodontal disease. In:Genco, R. J., Mergenhagen, S. E. (eds.): Host-parasite interactions in periodontal disease. American Society for Microbiology 1982, pp. 27–45.
Shah, H. N., Seddon, S. V., Gharbia, S. E. Studies on the virulence properties and metabolism of pleiotrophic mutants ofPorphyromonas gingivalis (Bacteroides gingivalis) W50. Oral Microbiol. Immun. 4 (1989) 19–23.
Al-Jalili, T. A. R., Shah, H. N. Protoheme, a dispensible growth factor forBacteroides fragilis grown by batch and continuous culture in a basal medium. Curr. Microbiol. 17 (1988) 13–18.
Harris, M. A., Reddy, C. A. Factors controlling the microbial flora of the mouth. Eur. J. Chemother. Antibiotics 131 (1977) 922–928.
McKee, A. S., McDermid, A. S., Baskerville, A., Dowsett, A. B., Ellwood, D. C., Marsch, P. D. Effect of hemin on the physiology and virulence ofBacteroides gingivalis W50. Infect. Immun. 52 (1986) 349–355.
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Shah, H.N., Gharbia, S.E. Ecological events in subgingival dental plaque with reference to bacteroides and fusobacterium species. Infection 17, 264–268 (1989). https://doi.org/10.1007/BF01639537
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DOI: https://doi.org/10.1007/BF01639537