FIG. 1. Family Enterobacteriaceae: Escherichia coli, non-hemolytic strain (Large, gray, moist colonies. Hemolysis is variable in the family Enterobacteriaceae, and colonies of many species appear similar). (Rebecca Buxton, University of Utah)
FIG. 2. Family Enterobacteriaceae: Morganella morganii, beta hemolytic strain (Large, gray, moist colonies. Hemolysis is variable in the family Enterobacteriaceae, and colonies of many species appear similar). (Rebecca Buxton, University of Utah)
FIG. 3. Family Enterobacteriaceae: Morganella morganii, hemolytic strain (Rebecca Buxton, University of Utah)
FIG. 4. Family Enterobacteriaceae: red-pigmented Serratia marcescens. (Rebecca Buxton, University of Utah)
FIG. 5. Family Enterobacteriaceae: swarming Proteus (A single colony on fresh medium shows a confluent swarm.) (Rebecca Buxton, University of Utah)
FIG. 6. Family Enterobacteriaceae: swarming Proteus (A single colony on fresh medium shows a confluent swarm). (Rebecca Buxton, University of Utah)
FIG. 7. A pure culture of Proteus: The obvious streak lines may appear as “no growth” to the inexperienced eye, when in fact, the plate displays a confluent lawn of swarming growth. (Rebecca Buxton, University of Utah)
FIG. 8. Family Enterobacteriaceae: swarming Proteus (A single colony on fresh medium shows a confluent swarm. Transmitted light reveals slight beta hemolysis). (Rebecca Buxton, University of Utah)
FIG. 9. Family Enterobacteriaceae: swarming Proteus (Low-moisture medium reveals distinct rings of swarming growth from 2 isolated colonies). (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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