ID#: 28974
Caption:
This photograph shows a close frontal view of a CDC Lombard-Dowell (LD) Presumpto Plate II quadrant plate, focusing on the quadrant containing LD agar supplemented with casein. This quadrant was inoculated with an unspecified anaerobic bacterium to assess casein hydrolysis. A positive reaction produces a zone of clearing in the opacified medium surrounding bacterial growth on the agar surface; here, a distinct halo is visible, indicating a positive casein hydrolysis result.
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Content Provider(s): CDC/ Dr. Gilda L. Jones
Creation Date: 1981
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