FIG. 1. Large, creamy white, beta hemolytic colonies typical of Staphylococcus aureus. (Rebecca Buxton, University of Utah)
FIG. 2. Large, creamy white, beta hemolytic colonies typical of Staphylococcus aureus. (Rebecca Buxton, University of Utah)
FIG. 3. Large, creamy white, beta hemolytic colonies typical of Staphylococcus aureus. (Rebecca Buxton, University of Utah)
FIG. 4. Large, creamy white, beta hemolytic colonies typical of Staphylococcus aureus. (Rebecca Buxton, University of Utah)
FIG. 5. Strains of Staphylococcus aureus may or may not produce a golden yellow pigment. (beta hemolytic, non-pigmented strain. Compare with Figure 6). (Rebecca Buxton, University of Utah)
FIG. 6. Strains of Staphylococcus aureus may or may not produce a golden yellow pigment. (beta hemolytic, yellow-pigmented strain. Compare with Figure 5). (Rebecca Buxton, University of Utah)
FIG. 7. Non-hemolytic Staphylococcus species: Staphylococcus epidermidis. (Most species of coagulase negative Staphylococcus species are non-hemolytic). (Rebecca Buxton, University of Utah)
FIG. 8. Non-hemolytic Staphylococcus species: Staphylococcus epidermidis. (Rebecca Buxton, University of Utah)
FIG. 9. Non-hemolytic Staphylococcus species: Staphylococcus epidermidis. (Rebecca Buxton, University of Utah)
FIG. 10. Staphylococcus saprophyticus: non-hemolytic, bright white, creamy colonies (recovered almost exclusively from urinary tract infections in young, sexually active females). (Rebecca Buxton, University of Utah)
FIG. 11. Micrococcus luteus: Dramatic bright yellow pigment (no hemolysis). (Rebecca Buxton, University of Utah)
See also:
PROTOCOL
The protocol for utilizing the Blood Agar in undergraduate education is available via a subscription to the MicrobeLibrary.
If you are already a MicrobeLibrary subscriber and logged in, please visit Blood Agar Protocols.
REVIEWERS
This resource was peer-reviewed at ASM Conference for Undergraduate Education 2005 (ASMCUE, 2005).
Participating Reviewers:
Samuel Fan
Bradley University, Peoria, Ill.
Ashalla Freeman
University of North Carolina, Chapel Hill, N.C.
Roxana Hughes
UNT Biological Sciences, Denton, Tex.
D. Sue Katz
Rogers State University, Claremore, Okla.
Lucy Kluckhohn Jones
Santa Monica College, Santa Monica, Calif.
Patricia Shields
University of Maryland, College Park
Erica Suchman
Colorado State University, Ft. Collins
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