Presumptive identification of streptococci with a new test system
نویسندگان
چکیده
منابع مشابه
Presumptive identification of streptococci with a new test system.
A test is described that could replace bacitracin susceptibility for presumptive identification of group A streptococci as well as 6.5% NaCl agar tolerance for presumptive identification of enterococcal streptococci. The L-pyrrolidonyl-beta-naphthylamide test, based on hydrolysis of pyrrolidonyl-beta-naphthylamide, was used in conjunction with the CAMP and bile-esculin tests to presumptively id...
متن کاملCAMP-disk test for presumptive identification of group B streptococci.
The modification of the CAMP test for goup B streptococci involved substituting a paper disk impregnated with partially purified beta-hemolysin for the staphylococcal culture that was the source of beta-hemolysin in the original test. The disk is placed onto a sheep blood agar plate beside the streak of Streptococcus being tested. The plate is then incubated aerobically at 35 degrees C. A posit...
متن کاملPresumptive identification of group D streptococci: the bile-esculin test.
Six tests commonly used for the presumptive identification of group D streptococci were evaluated. Strains tested included 282 group D streptococci and 366 non-group D. Ratios of percentages of group D to non-group D strains which gave positive reactions for each test are as follows: bile-esculin, 100:2; salt tolerance, 88:24; heat tolerance, 100:80; SF broth, 86:1; KF broth, 99:40; and methyle...
متن کاملNew presumptive identification test for Clostridium perfringens: reverse CAMP test.
The reverse CAMP test proved to be a highly sensitive test since 97.0% of all Clostridium perfringens cultures tested gave an easily discernible positive reaction.
متن کاملEvaluation of a new presumptive medium for group D streptococci.
A new medium designated as D streptococcus-enterococcus broth was formulated and evaluated for the enrichment and isolation of strains of serological group D streptococci. This medium was made by modifying Todd-Hewitt broth. Most-probable-number multiple-tube and membrane filter techniques were employed to estimate the numbers of enterococci in known cultures, wastewater, and other samples. Pre...
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: Journal of Clinical Microbiology
سال: 1982
ISSN: 0095-1137,1098-660X
DOI: 10.1128/jcm.15.6.987-990.1982