ID#: 28514
Caption:
This photograph depicts two nutrition test tube slant cultures, which had been inoculated with Trichophyton megninii fungal organisms, in order to see if the addition of L-histidine, 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 Ammonium Nitrate agar (NH4NO3) = No Growth

- Tube #2 - NH4NO3 + L-histidine = Moderate Growth

Results reveal a stimulation in growth in this particular strain of T. megninii, when L-histidine was added to the growth medium.
High Resolution: Click here for hi-resolution image (20.88 MB)
Content Provider(s): CDC/ Dr. Lucille K. Georg
Creation Date: 1956
Photo Credit:
Links:
Categories:
CDC Organization
Skip Navigation Links.

MeSH
Skip Navigation Links.
Copyright Restrictions: Permission is not required for public domain images, however, these images are provided by CDC and are available for personal, professional, and educational use with appropriate attribution. Redistribution must credit CDC and, where known, the individual photographer, and identify the CDC website as the free source. For additional terms see Use of Agency Materials | Other | CDC