Abstract
Reactions incurred on chocolate agar by gram-positive cocci were correlated with species identity. Darkening and clearing of the medium was usually associated with the species Staphylococcus epidermidis, Staphylococcus aureus, Staphylococcus simulans, and Streptococcus faecalis. Yellowing of chocolate agar was associated with alpha-hemolytic species of Streptococcus. The study demonstrated that reactions occurring on chocolate agar are useful in identifying gram-positive cocci.
Full text
PDF
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Carlsson J. A numerical taxonomic study of human oral streptococci. Odontol Revy. 1968;19(2):137–160. [PubMed] [Google Scholar]
- Facklam R. R. Physiological differentiation of viridans streptococci. J Clin Microbiol. 1977 Feb;5(2):184–201. doi: 10.1128/jcm.5.2.184-201.1977. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Facklam R. R. Recognition of group D streptococcal species of human origin by biochemical and physiological tests. Appl Microbiol. 1972 Jun;23(6):1131–1139. doi: 10.1128/am.23.6.1131-1139.1972. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Gemmell C. G., Dawson J. E. Identification of coagulase-negative staphylococci with the API staph system. J Clin Microbiol. 1982 Nov;16(5):874–877. doi: 10.1128/jcm.16.5.874-877.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Gunn B. A., Singleton F. L., Peele E. R., Colwell R. R., Keiser J. K., Kapper C. O. Comparison of methods for identifying Staphylococcus and Micrococcus spp. J Clin Microbiol. 1981 Aug;14(2):195–200. doi: 10.1128/jcm.14.2.195-200.1981. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Maddux R. L., Koehne G. Identification of Staphylococcus hyicus with the API staph strip. J Clin Microbiol. 1982 Jun;15(6):984–986. doi: 10.1128/jcm.15.6.984-986.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Oxborrow G. S., Favero M. S. A combination medium for demonstrating starch and gelatin hydrolysis. Am J Med Technol. 1967 Jul-Aug;33(4):334–335. [PubMed] [Google Scholar]
- Ruoff K. L., Kunz L. J. Use of the Rapid STREP system for identification of viridans streptococcal species. J Clin Microbiol. 1983 Nov;18(5):1138–1140. doi: 10.1128/jcm.18.5.1138-1140.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Schleifer K. H., Kloos W. E. A simple test system for the separation of staphylococci from micrococci. J Clin Microbiol. 1975 Mar;1(3):337–338. doi: 10.1128/jcm.1.3.337-338.1975. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Schleifer K. H., Meyer S. A., Rupprecht M. Relatedness among coagulase-negative staphylococci: deoxyribonucleic acid reassociation and comparative immunological studies. Arch Microbiol. 1979 Jul;122(1):93–101. doi: 10.1007/BF00408051. [DOI] [PubMed] [Google Scholar]