1887

Abstract

SUMMARY

Computers were used for numerical studies as an aid to the classification of streptococci. The results obtained with 75 biochemical and physiological tests of 216 strains were examined by three different computer programmes. Two of these programmes formed clusters in general agreement with the well-established species and also formed three clusters among the viridans-like streptococci. These 3 clusters seem to provide a basis for the recognition of 3 divisions among the streptococci which are at present usually described as lacking adequate distinguishing characters.

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/content/journal/micro/10.1099/00221287-50-1-149
1968-01-01
2024-12-06
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References

  1. Anderson A. B., Hart P. D. 1934; The lysis of pneumococci by sodium desoxycholate. Lancet ii:359
    [Google Scholar]
  2. Andrewes F. W. 1930; Note on the fermentation of starch by certain haemolytic streptococci. J. Path. Bact 33:145
    [Google Scholar]
  3. Ayers S. H., Rupp P. 1922; Differentiation of hemolytic streptococci from human and bovine sources by hydrolysis of sodium hippurate. J. infect. Dis 30:388
    [Google Scholar]
  4. Bliss E. A. 1937; Studies upon minute streptococci. III. Serological differentiation. J. Bact 33:625
    [Google Scholar]
  5. Colman G. 1967; Aerococcus-like organisms isolated from human infections. J. clin. Path 20:294
    [Google Scholar]
  6. Colman G., Williams R. E. O. 1965; The cell walls of streptococci. J. gen. Microbiol 41:375
    [Google Scholar]
  7. Colobert L., Blondeau H. 1962; L’espèce Streptococcus faecalis 1. Étude de l’homogénéité par la méthode adansonnienne. Annls Inst. Pasteur, Paris 103:345
    [Google Scholar]
  8. Deibel R. H. 1964; The group D streptococci. Bact. Rev 28:330
    [Google Scholar]
  9. Guthof O. 1956; Über pathogene ‘vergrünende Streptokokken’. Streptokokken-Befunde bei dentogenen Abszessen und Infiltrateten im Bereich der Mundhöhle. Zentbl. Bakt. (Abt. I. Orig.) 166:553
    [Google Scholar]
  10. Harrison P. J. 1968; Cluster Analysis. Appl. Statist, (in the Press)
    [Google Scholar]
  11. Hehre E. J., Neill J. M. 1946; Formation of serologically reactive dextrans by streptococci from subacute bacterial endocarditis. J. exp. Med 83:147
    [Google Scholar]
  12. Henriksen S. D., Joner P. E. 1962; Production of hyaluronic acid by a strain of Streptococcus zymogenes . Acta path, microbiol. scand 56:70
    [Google Scholar]
  13. Mayr E. 1965; Numerical phenetics and taxonomic theory. Syst. Zool 14:73
    [Google Scholar]
  14. Munch-Petersen E. 1954; Note on Streptococcus agalactiae . Int. Bull. bact. Nomencl. Taxon 4:129
    [Google Scholar]
  15. Munch-Petersen E., Christie R. 1947; On the effect of the interaction of staphylococcal β-toxin and group-B streptococcal substance on red blood corpuscles and its use as a test for the identification of Streptococcus agalactiae . J. Path. Bact 59:367
    [Google Scholar]
  16. Raj H., Colwell R. R. 1966; Taxonomy of enterococci by computer analysis. Can. J. Microbiol 12:353
    [Google Scholar]
  17. Rogers D. J., Tanimoto T. 1960; A computer program for classifying plants. Science, N. Y 132:1115
    [Google Scholar]
  18. Sherman J. M. 1938; The enterococci and related streptococci. J. Bact 35:81
    [Google Scholar]
  19. Skadhauge K., Perch B. 1959; Studies on the relationship of some alpha-haemolytic streptococci of human origin to the Lancefield group M. Acta path, microbiol. scand 46:239
    [Google Scholar]
  20. Sneath P. H. A. 1962; The construction of taxonomic groups. Symp. Soc.gen. Microbiol 12289
    [Google Scholar]
  21. Sokal R. R., Sneath P. H. A. 1963 Principles of Numerical Taxonomy180 San Francisco and London: W. H. Freeman and Company;
    [Google Scholar]
  22. Washburn M.R., White J. C., Ntven C. F. Jr 1946; Streptococcus s.b.e.: immunological characteristics. J. Bact 51:723
    [Google Scholar]
  23. Williams R. E. O. 1954; Glucuronidase production by serotypes of Streptococcus pyogenes . J. gen. Microbiol 10:337
    [Google Scholar]
  24. Williams R. E. O. 1956; Streptococcus salivarius (vel hominis) and its relation to Lancefield’s group K. J. Path. Bact 72:15
    [Google Scholar]
  25. Williams R. E. O. 1958; Laboratory diagnosis of streptococcal infections. Bull. Wld Hlth Org 19:153
    [Google Scholar]
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