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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 strai??? † ???A??n. 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,
??? † ???A??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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