1887

Abstract

The identity of the polysaccharide antigens of Streptococcus mg and streptococci with group antigen F and type antigen III is shown by precipitation reactions with formamide extracts, cross-absorption tests, sugar composition and by the inhibition of the quantitative precipitation reaction. On this basis Streptococcus mg can be classified as an f III strain.

The relationship between Streptococcus mg and type I is explained by their common reactions with anti-III serum. Inhibition of the quantitative precipitations with simple sugars suggest that the determinant groups of the type III and the ‘salivarius’ antigen are not quite identical, although both antigens contain a β-glucosidic and a galactosidic group.

A second unrelated antigen has been found in some ‘salivarius’ strains alone (represented by strain 51) or together with type III antigen. The quantitative precipitation of the strain 51/anti-strain 51 system was only slightly inhibited by rhamnose.

The qualitative composition of the sugar components of the formamide extracts of Streptococcus mg, f III, both ‘salivarius’ types of 0 III are compared.

Loading

Article metrics loading...

/content/journal/micro/10.1099/00221287-37-3-425
1964-12-01
2024-12-12
Loading full text...

Full text loading...

/deliver/fulltext/micro/37/3/mic-37-3-425.html?itemId=/content/journal/micro/10.1099/00221287-37-3-425&mimeType=html&fmt=ahah

References

  1. McCarty M. 1956; Variation in the group specific carbohydrate of group A streptococci. II. Studies on the chemical basis for serological specificity of the carbohydrates J. exp. Med. 104:629
    [Google Scholar]
  2. Curtis S. N., Krause R. M. 1964; Immunochemical studies on the specific carbohydrate of group G streptococci. J. exp. Med. 119:997
    [Google Scholar]
  3. Krause R. M., McCarty M. 1962; Variation in the group specific carbohydrate of group C hemolytic streptococci. J. exp. Med. 116:131
    [Google Scholar]
  4. Michel M. F., Gooder H. 1962; Amino acids, amino sugars and sugars present in the cell wall of some strains of Streptococcus pyogenes. J. gen. Microbiol. 29:199
    [Google Scholar]
  5. Michel M. F., Willers J. M. N. 1964; Immunochemistry of group F streptococci. Isolation of group specific oligosaccharides J. gen. Microbiol. 37:381
    [Google Scholar]
  6. Mirick G. S., Thomas L., Curnen E. C., Horsfall F. L. Jun. 1944; Studies on a non-hemolytic streptococcus isolated from the respiratory tract of human beings. I Biological characteristics of Streptococcus mg J. exp. Med. 80:391
    [Google Scholar]
  7. Mirick G. S., Thomas L., Curnen E. C., Horsfall F. L. Jun. 1944a; Studies on a non-hemolytic streptococcus isolated from the respiratory tract of human beings. II Immunological characteristics of Streptococcus mg. J. exp. Med. 80:407
    [Google Scholar]
  8. Mirick G. S., Thomas L., Curnen E. C., Horsfall F. L. Jun. 1944b; Studies on anon-hemolytic streptococcus isolated from the respiratory tract of human beings. I Immunological relationship of Streptococcus mg to Streptococcus salivarius type I J. exp. Med. 80:431
    [Google Scholar]
  9. Ottens H., Winkler K. C. 1962; Indifferent and hemolytic streptococci possessing group antigen F. J. gen. Microbiol. 28:181
    [Google Scholar]
  10. Sherman J. M., Niven C. F. Jun., Smiley K. L. 1943; Streptococcus salivarius and other non-hemolytic streptococci of the human throat. J. Bad. 45:249
    [Google Scholar]
  11. Willers J. M. N., Michel M. F., Sysma M. J., Winkler K. C. 1964; Chemical analysis and inhibition reactions of the group and type antigens of group F streptococci. J. gen. Microbiol. 36:95
    [Google Scholar]
/content/journal/micro/10.1099/00221287-37-3-425
Loading
/content/journal/micro/10.1099/00221287-37-3-425
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