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Colonial Morphology
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Microscopic Morphology Phase Contrast
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Biochemical Reactions: BCP, SDA and Urease
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- Growth rate: moderately rapid
- Texture: suede like to cottony, widely spaced radial grooves
- Thallus color: white, becoming pink to violet
- Reverse color: wine red to red brown
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- pyriform microconidia
- rare pencil shaped macroconidia
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- BCP: moderate to profuse growth, alkaline
- Urease: positive in broth, may be negative in agar
- Vitamin requirement: histidine (Trichophyton agar #7)
- Hair perforation: negative
- Red pigment
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Compare to and Differentiate from:
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Etiology & Ecology
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