ID#: 18274
Caption:
This photograph depicts three nutrition test tube slant cultures, which had been inoculated with Trichophyton verrucosum fungal organisms, in order to see if the addition of thiamine (vitamin B1), had any impact upon the growth rate of these colonies. In this case, the breakdown of the constituents in each growth medium sample, were as follows:

- Tube #1 - Only casein = No Growth

- Tube #2 – Casein + Inositol = No Growth

- Tube #3 – Casein + Inositol + Thiamine = Good Growth

Results revealed a stimulation in growth in this particular strain, when thiamine is added to the growth medium.
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Content Provider(s): CDC/ Dr. Lucille K. Georg
Creation Date: 1971
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Copyright Restrictions: None - This image is in the public domain and thus free of any copyright restrictions.