Is a general purpose medium for a wide range of yeasts and molds.
The nutritionally rich base (potato infusion) encourages mold sporulation and pigment production in some dermatophytes like Trichophytan rubrum.
Most fungi thrive on Potato Dextrose Agar (PDA), but this can be too rich for many fungi, so that excessive mycelial growth is obtained at the expense of sporulation.
Is composed of dehydrated potato infusion, dextrose and agar. Many standard procedures use a specified amount of sterile tartaric acid (10%) to lower the pH of this medium to 3.5 +/- 0.1, inhibiting bacterial growth.
It is recommended that biochemical, immunological, molecular, or mass spectrometry testing be performed on colonies from pure culture for complete identification.
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