HEMOLYSIN EXAMINATION OF SWINE STREPTOCOCCAL ISOLATES
- VernacularTitle:猪源链球菌溶血性的检测
- Author:
Guo-Qiang CHEN
;
Cheng-Ping LU
;
Huo-Chun YAO
;
- Publication Type:Journal Article
- Keywords:
Streptococcus suis type 2, Streptoccus equi subsp. zooepidemicus , Hemolysin, Examination
- From:
Microbiology
1992;0(06):-
- CountryChina
- Language:Chinese
-
Abstract:
The hemolysin production of 19 strains of Streptococcus spp. isolated from pigs in the Jiangsu and Shanghai regions in recent years were examined. Eight isolates of Streptococcus suis type 2 from Jiangsu showed weak hemolysis on blood agar, but a stronger reaction in Todd-Hewitt broth(THB). The hemolysin belonged to the group of thiol-activated hemolysins. Nine strains of Streptoccus equi subsp. zooepidemicus showed strong hemolysis on blood agar and in THB containing 5% new-born calf serum, but no hemolysis in THB alone. This hemolysin was similar to streptolysin S(SLS). Another two isolates were atypical members of Lancefield group C Streptococcus and showed strong hemolysis on blood agar and in THB with 5% new-born calf serum, but the hemolysin was unlike either streptolysin O or SLS.
