ID#: 16573
These two slant culture test tubes highlight the nicotinic acid nutritional requirement of the fungal organism, Trichophyton equinum. The test tube on the left contained a casein-rich growth medium, while the one on the right contained a casein-rich growth medium, to which nicotinic acid had also been added. Both cultures had been inoculated with T. equinum. Note the tube containing the nicotinic acid had given rise to a colony of T. equinum fungal organisms, with no growth occurring in the left tube.
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Content Provider(s): CDC/ Dr. Lucille K. Georg
Creation Date: 1968
Photo Credit:
CDC Organization
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Copyright Restrictions: None - This image is in the public domain and thus free of any copyright restrictions.