Trichophyton violaceum Images
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Trichophyton violaceum. culture top (young colonies): grown on selective, modified (cycloheximide, chloramphenicol) cinnamon agar at 25 °C room temperature; very slow growing, initially purple or light- later typical (violaceum) dark violet colonies, usually with white sectors and a ceribriform surface.
Trichophyton violaceum; underside of the culture: reddish-brown to violet colour; sharply limited growth of the colonies.
Trichophyton violaceum. microscopy of the culture: gnarled mycelium with terminal thickened hyphae and in places compressed lateral branching. microconidia are very rare. chlamydospores both terminal and intercalary. no macroconidia (formation by thiamine addition of the cutur).