(Figure 4.27C) - Infection: tinea pedis, tinea cruris, tinea corporis, onychomycosis
- Colony: khaki-colored to olive color → reverse orange-brown
- Hyphae: septate hyphae
- Conidia: club-shaped 2–6 celled macroconidia occurring characteristically in clusters (“beaver tail”)
| | | | | | | Table 4-14 Fungal Growth Requirements | | | Thiamine requirement | | Inositol/Thiamine requirement | | Histidine requirement | | Nicotinic acid requirement | | | T. violaceum
T. concentricum
T. tonsurans
T. verrucosum | | T. verrucosum | | T. megnini | | T. equinum| | | | | | | | | Horses (equinum)
are nice
(nicotinic acid) | | | | | | | | | | | | | | |
| | | Pigmentation on cornmeal agar | | Growth on polished rice | | Hair perforation (penetration) | | Urease activity present | | | + T. rubrum
– T. mentag | | + M. canis
– M. audouinii | | + T. mentag
– T. rubrum | | + T. mentag
– T. rubrum | | | | | | | | | |
| | | | | |
|
| | Figure 4.27
A: T. verrucosum *
B: T. violaceum *
C: E. floccosum *
*Courtesy of Sandra Arduin,
Michigan Department of
Community Health |
|
