Species name Trichophyton interdigitale |
Teleomorph Arthroderma vanbreuseghmii |
Natural Hábitat Humans and occasionally animals like cats, dogs and rats.. |
Geography Worldwide |
Frequency The second commonest cause of dermatophytosis. |
Diseases Tiñea pedis, corporis, cruris, onychomycosis and occasionally Tinea capitis |
Culture peculiarities The colonies are white or cream with a yellow pigment and a surface powdery appearance, the underside of the plate is orange to yellow.By microscopy the conidia are abundant and either rounded or tear shaped. Usually the macroconidia are absent when the strain has been isolated from humans, and can form fine walled cigar shapes. |
Antifungal resistance (intrinsic and acquired) Terbinafine would be the optimal treatment. Other antifungals like ketoconazole, clotrimazole, itraconazole, naphthalene and amorolfine are also active. This species is generally resistant to fluconazole. Resistance to other antifungals is unknown. |
Biosecurity level 2: This species should be handled in a level 2 containment facility. |
Industrial use None |
Images
Culture of Trichophyton interdigitale
Microscopical morphology