Dermatophytes: conidium-ontogeny and classification.
The ontogeny of the conidia of representative Dermatophyte species has been examined by time-lapse microphotography. The results are summarized in five main conclusions. (i) the genera Microsporum, Trichophyton and Epidermophyton have holoblastic conidium-ontogeny; (ii) the investigated species exhibit polymeristematic development; (iii) delivery of the conidia occurs by means of a special detaching mechanism: consisting in autolysis of a detaching-cell or cells; (iv) the macroconidia have a primary septum; (v)chlamydospores including "gemmae" and "persistent-organs", strikingly similar to the macro- and microconidia as investigated in aqueous preparations, are also formed. The author classifies the dermatophytes into section III of the system of HUGHES and into the group III/C of TURBAKI's system.
D003883:Arthrodermataceae / Q000145:classification* / Q000254:growth & development; D004821:Epidermophyton / Q000145:classification / Q000254:growth & development; D008864:Microsporum / Q000145:classification / Q000254:growth & development; D008954:Models, Biological; D010784:Photomicrography; D013172:Spores, Fungal / Q000254:growth & development; D013997:Time Factors; D014249:Trichophyton / Q000145:classification / Q000254:growth & development