ID#: 18859
Description: Caption:
These three Petri dish culture plates contained a casein-rich growth medium that had been inoculated from left to right, with Nocardia asteroides, N. brasiliensis, and a Streptomyces sp. organism. Note that the N. asteroides produced no hydrolysis reaction halo, while N. brasiliensis produced a minor reaction, and the Streptomyces sp. bacterium produced a strong hydrolytic reaction. Within the cleared halo region, casein had been hydrolyzed.
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Content Providers(s): CDC/ Dr. Lucille K. Georg
Creation Date: 1964
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Copyright Restrictions: None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.