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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 slow
- Texture: velvety
- Thallus color: white or tinged with underlying red pigment
- Reverse: red to red brown
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- no microconidia
- abundant pencil shaped macroconidia, some with T-shaped end cells
- macroconidia break into arthroconidia
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- BCP: restricted, no change, red
- Urease: weak positive
- Vitamin requirement: none, brown pigment produced on #1
- Hair perforation: negative
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Compare to and Differentiate from:
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Etiology & Ecology
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