DTM plate on the right showing color change after two day's growth;
Microsporum canis (DTM) is a specialized
agar used in medical
mycology. It is based on Sabouraud's dextrose agar with added
cycloheximide to inhibit saprotrophic growth, antibiotic to inhibit bacterial growth, and phenol red a
pH indicator. The pH indicator is useful in distinguishing a
dermatophyte fungus, which utilizes
nitrogenous material for preferred metabolism, producing alkaline by-products, imparting a red color change to the medium. Typical saprotrophic fungi utilized
carbohydrates in the medium producing acidic by-products and no red color change.
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| | Selective media |
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| | Differential media | |
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| | Fungal media | |
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| | Nonselective media | |
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| | Other/ungrouped media | |
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gr+f/gr+a (t)/gr-p (c)/gr-o
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drug (J1p, w, n, m, vacc)
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