STUDIES ON STREPTOCOCCI : I. ON CLASSIFICATION OF STREPTOCOCCI
نویسندگان
چکیده
منابع مشابه
Studies on Indifferent Streptococci
The indifferent streptococci are remarkably efficient allergizing agents when inoculated intradermally into rabbits. This is revealed by the high percentage of secondary reactions which occur in the lesions resulting from the inoculation of small doses of these organisms, and by the relative frequency with which positive ophthalmic reactions are obtained following sensitization with relatively ...
متن کاملElectron Microscopic Studies on Streptococci
The location of Group A carbohydrate in the streptococcal cell wall has been studied by several ultrastructural techniques. The findings, based largely on use of ferritin- and horseradish peroxidase-conjugated antibodies, are interpreted as demonstrating a discrete laminar distribution of the group-specific polysaccharide. This carbohydrate layer is located on the outermost surface of the cell ...
متن کاملNontransformable Streptococci on the Transformation of Streptococci
PERRY, DENNIS (Northwestern University Medical School, Chicago, Ill.), AND HUTTON D. SLADE. Effects of filtrates from transformable and nontransformable streptococci on the transformation of streptococci. J. Bacteriol. 91:2216-2222. 1966.-The nature of the transformation competence factor from a group H streptococcus was investigated. The activity of competence factor reached a maximum at the t...
متن کاملStudies on the Bacteriophages of Hemolytic Streptococci
The lysis of cell walls of hemolytic streptococci by a phage-associated lysin has been described. A method is presented for preparing the lysin from Group C streptococcal phage lysates. Following lysis almost all of the cell wall carbohydrate is recovered in solution. This material has the serological reactivity, physical-chemical properties, and values for nitrogen, rhamnose, and glucosamine s...
متن کاملStudies on Bacteriophages of Hemolytic Streptococci
The host ranges of bacteriophages for group A, types 1, 6, 12, and 25 and group C streptococci have been determined. The findings indicate that the susceptibility to these phages is primarily a group-specific phenomenon, although it is modified by several factors such as the hyaluronic acid capsule, lysogeny, and possibly the presence of surface proteins. Phage antibody studies indicate that wh...
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ژورنال
عنوان ژورنال: The Japanese Journal of Veterinary Science
سال: 1960
ISSN: 0021-5295,1881-1442
DOI: 10.1292/jvms1939.22.353