1887

Abstract

SUMMARY: A streptococcus reacting with both group D and group N specific antisera was found to belong to group D; the reaction with the group N serum was shown by reciprocal absorption tests to be due to a common type antigen. Two group D strains were encountered having this antigen; both were identified as The group N strain possessing this same antigen was It proved to have at least one other type antigen, also found in another strain of which was not serologically identical. Two antigenic variants were present in cultures of this organism; one possessed all the type antigens characterizing this strain the other had only one. Attempts to cause further dissociation or reversion were not successful.

Loading

Article metrics loading...

/content/journal/micro/10.1099/00221287-7-1-2-192
1952-08-01
2024-12-04
Loading full text...

Full text loading...

/deliver/fulltext/micro/7/1-2/mic-7-1-2-192.html?itemId=/content/journal/micro/10.1099/00221287-7-1-2-192&mimeType=html&fmt=ahah

References

  1. Abd-el-Malek Y., Gibson T. 1948; Studies in the bacteriology of milk. I. The streptococci of milk. J. Dairy Res. 15:233
    [Google Scholar]
  2. Bliss E.A. 1937; Studies upon minute haemolytic streptococci. III. Serological differentiation. J. Bact. 33:625
    [Google Scholar]
  3. Briggs C.A.E., Newland L.G.M. 1952; The serological classification of Streptococcus cremoris. . J. Dairy Res. 19:160
    [Google Scholar]
  4. Dawson M.H., Hobby G.L., Olmstead M. 1938; Variation in the haemolytic streptococci. J. infect. Dis. 62:138
    [Google Scholar]
  5. Fuller A.T. 1938; The formamide method for the extraction of polysaccharide from haemolytic streptococci. Brit. J. exp. Path. 19:130
    [Google Scholar]
  6. Lancefield R.C. 1933; A serological differentiation of human and other groups of haemolytic streptococci. J. exp. Med. 57:571
    [Google Scholar]
  7. Maxted W.R. 1949; Occurrence of the M substance of type 28 group A in streptococci of Lancefield groups B, C and G. J. gen. Microbiol. 3:1
    [Google Scholar]
  8. Seelemann M., Carstens O. 1951a; Die serologische Zugehörigheit des Sc. bovis und sog. atypischer Enterokokken zur Gruppe D. Kieler Milchw. Forsch. Ber. 3:431
    [Google Scholar]
  9. Seelemann M., Carstens O. 1951b; Zur Biologie des Sc. lactis und Sc. cremoris(Gruppe L). Milchwissenschaft 6:231
    [Google Scholar]
  10. Sharpe M.E., Shattock P.M.F. 1952; The serological typing of group D streptococci associated with outbreaks of neonatal diarrhoea. J. gen. Microbiol. 6:150
    [Google Scholar]
  11. Shattock P.M.F. 1949; The streptococci of group D; the serological grouping of Streptococcus bovis and observations on serologically refractory group D strains. J. gen. Microbiol. 3:80
    [Google Scholar]
  12. Shattock P.M.F., Hirsch A. 1947; A liquid medium buffered at pH 9·6 for the differentiation of Streptococcus faecalis from Streptococcus lactis. . J. Path. Bact. 59:495
    [Google Scholar]
  13. Shattock P.M.F., Mattick A.T.R. 1943; The serological grouping of Streptococcus lactis (group N) and its relationship to Streptococcus faecalis. . J. Hyg., Camb. 43:173
    [Google Scholar]
  14. Skadhauge K. 1950 Studies on Enterococci. Copenhagen:: Einer Munksgaard;
    [Google Scholar]
  15. Swartling P. 1951; Biochemical and serological properties of some citric acid fermenting streptococci from milk and dairy products. J. Dairy Res. 18:256
    [Google Scholar]
/content/journal/micro/10.1099/00221287-7-1-2-192
Loading
/content/journal/micro/10.1099/00221287-7-1-2-192
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error