Characterization of Streptococcus suis capsular type 2 haemolysin
نویسندگان
چکیده
منابع مشابه
Characterization of Streptococcus suis capsular type 2 haemolysin.
The production of a haemolysin by Streptococcus suis capsular type 2 was investigated. Human group O erythrocytes were the most susceptible, followed by horse, sheep, cow and pig red blood cells, which exhibited similar susceptibilities; rabbit erythrocytes were the least susceptible. The haemolysin was produced at the end of the exponential growth phase. The toxin described in this paper was p...
متن کاملStreptococcus suis Capsular Polysaccharide Inhibits Phagocytosis through
6 Mathieu Houde, Marcelo Gottschalk, Fleur Gagnon, Marie-Rose Van Calsteren, and 7 Mariela Segura* 8 9 10 Groupe de Recherche sur les Maladies Infectieuses du Porc and Centre de Recherche en 11 Infectiologie Porcine, Faculté de médecine vétérinaire, Université de Montréal, and Food 12 Research and Development Centre, Agriculture and Agri-Food Canada, Saint-Hyacinthe, 13 Québec, Canada. 14 15 16...
متن کاملStudies on a murine model for evaluation of virulence of Streptococcus suis capsular type 2 isolates.
Five different parameters, time of incubation of the culture, type of culture medium, inoculum, strain of inbred mice, and age of mice, were tested using the LD50 technique to standardize a murine model for the evaluation of the virulence of Streptococcus suis capsular type 2 isolates. A model using 28 day-old mice belonging to CF1 strain appeared to give the best results. The inoculum size was...
متن کاملPurification and characterization of a 52-kilodalton immunoglobulin G-binding protein from Streptococcus suis capsular type 2.
We previously reported that group D streptococci exhibited immunoglobulin G (IgG)-binding activity and that a 52-kDa IgG-binding protein was present in all Streptococcus suis strains examined (B. Serhir, R. Higgins, B. Foiry, and M. Jacques, J. Gen. Microbiol. 139:2953-2958, 1993). The objective of the present study was to purify and characterize this protein. Pig IgG were immobilized through t...
متن کاملRole of capsular sialic acid in virulence and resistance to phagocytosis of Streptococcus suis capsular type 2.
Streptococcus suis capsular type 2 has a capsule rich in sialic acid (NANA). Sialic acid, known to be an antiphagocytic factor for many bacterial species, inhibits the activation of the alternative complement pathway. The role of capsular NANA in virulence, resistance to phagocytosis and intracellular survival of S. suis capsular type 2 was evaluated. In general, a low concentration of NANA was...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Microbiology
سال: 1995
ISSN: 1350-0872,1465-2080
DOI: 10.1099/00221287-141-1-189