doi: 10.1128/am.24.1.44-47.1972.
Pneumococci producing beta hemolysis on agar
- PMID: 4403496
- PMCID: PMC380544
- DOI: 10.1128/am.24.1.44-47.1972
Item in Clipboard
Pneumococci producing beta hemolysis on agar
Appl Microbiol.
1972 Jul.
Abstract
Fifty-six strains of pneumococci were studied for hemolysis on blood-agar Twenty-two (39%) of these strains produced beta hemolysis on agar containing horse red cells, six (11%) were beta hemolytic for sheep cells, and none lysed human or rabbit red cells. The substance producing beta hemolysis appeared after 24 hr of anaerobic incubation. Subsequent exposure to air at low temperature (6 to 20 C) for 48 hr was needed to activate it. There was no relation between serological type and beta hemolysis production. This substance appears to be different from the pneumococcal hemolysin previously described.
Similar articles
-
Disk test for the differentiation of pneumococci from other alpha-hemolytic streptococci.Appl Microbiol. 1973 Jul;26(1):116-7. doi: 10.1128/am.26.1.116-117.1973. Appl Microbiol. 1973. PMID: 4146938 Free PMC article.
-
Pneumococcal beta hemolysin produced under the effect of antibiotics.Appl Microbiol. 1973 Feb;25(2):290-4. doi: 10.1128/am.25.2.290-294.1973. Appl Microbiol. 1973. PMID: 4121032 Free PMC article.
-
Effect of antibiotics on staphylococcal hemolysin production.Appl Microbiol. 1971 Jul;22(1):106-9. doi: 10.1128/am.22.1.106-109.1971. Appl Microbiol. 1971. PMID: 5165102 Free PMC article.
-
Hemolytic behavior of staphylococci isolated from cows' milk.Can J Comp Med Vet Sci. 1966 Mar;30(3):63-70. Can J Comp Med Vet Sci. 1966. PMID: 4223753 Free PMC article.
-
Purification of staphylococcal beta-, gamma- and delta-hemolysins.Contrib Microbiol Immunol. 1973;1:298-313. Contrib Microbiol Immunol. 1973. PMID: 4616788 Review. No abstract available.
Cited by
-
Disk test for the differentiation of pneumococci from other alpha-hemolytic streptococci.Appl Microbiol. 1973 Jul;26(1):116-7. doi: 10.1128/am.26.1.116-117.1973. Appl Microbiol. 1973. PMID: 4146938 Free PMC article.
-
False no-growth blood cultures in pneumococcal pneumonia.J Clin Microbiol. 1980 Oct;12(4):572-5. doi: 10.1128/jcm.12.4.572-575.1980. J Clin Microbiol. 1980. PMID: 7419708 Free PMC article.
-
In vitro simulation of in vivo conditions: physical state of the culture medium.J Clin Microbiol. 1989 Nov;27(11):2403-6. doi: 10.1128/jcm.27.11.2403-2406.1989. J Clin Microbiol. 1989. PMID: 2681245 Free PMC article. Review. No abstract available.
-
Pneumococcal beta hemolysin produced under the effect of antibiotics.Appl Microbiol. 1973 Feb;25(2):290-4. doi: 10.1128/am.25.2.290-294.1973. Appl Microbiol. 1973. PMID: 4121032 Free PMC article.
MeSH terms
Substances
LinkOut - more resources
Full Text Sources
