Term
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Definition
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Term
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Definition
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Term
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Definition
Dimorphic
Dermatophytes
Others |
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Term
| Zygomycetes characteristics |
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Definition
Aseptate or sparsely septate
Sporulation occurs in sporangium (sac-like structure) by progressive cleavage |
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Term
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Definition
| Rapid, 4 days; inhibited by cyclohexamide |
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Term
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Definition
| Coarse, wooly gray surface; white reverse |
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Term
| Absidia microscopic morphology |
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Definition
| Wide hyphae; sporangiophores: between rhizoids, branched, widen at apophysis, sporangia: small with collerette; sporangiospores: round to oval |
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Term
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Definition
| Rapid, 4 days; inhibited by cyclohexamide |
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Term
| Rhizopus plate morphology |
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Definition
| Surface: cotton candy-like, 1st white then gray or yellowish brown; reverse: white |
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Term
| Rhizopus microscopic morphology |
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Definition
| Wide hyphae; sporangiophores: opposite rhizoids; usually unbranched & long; sporangia: columella, no collerette; sporangiospores: oval, colorless or brown |
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Term
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Definition
| Rapid, 4 days; inhibited by cyclohexamide |
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Term
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Definition
| Surface: cotton candy-like, 1st white the gray; reverse: white |
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Term
| Mucor microscopic morphology |
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Definition
| Wide hyphae; no rhizoids; sporangiophores: long, often branched; sproangia: round, +/- collerette; sporangiospores: round to oblong |
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Term
| Microsporum general characteristics |
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Definition
| numerous thick walled, rough macroconidia; microconidia: usually present (except for M. audouinii; seldom forms conidia) |
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Term
| Trichophyton general characteristics |
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Definition
| rare thin walled, smooth macroconidia; numerous microconidia |
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Term
| Epidermophyton general characteristics |
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Definition
| numerous thick & thin walled, smooth macroconidia; No microconidia |
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Term
| Microsporum audouinii growth rate |
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Definition
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Term
| Microsporum audouinii plate morphology |
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Definition
| Surface: flat, downy-silky, gray or tannish; reverse: light salmon with reddish brown center |
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Term
| Microsporum audouinii microscopic morphology |
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Definition
| Hyphae septate with pointed terminal chlamydoconidia, often pectinate hyphae; rare poorly shaped macroconidia; occasional microconidia |
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Term
| Microsporum canis growth rate |
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Definition
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Term
| Microsporum canis plate morphology |
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Definition
| Surface: whitish, coarsely fluffy, yellow pigment at periphery, closely spaced radial grooves; reverse: deep yellow turning brown-yellow with age |
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Term
| Microsporum canis microscopic morphology |
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Definition
| Septate hyphae; macroconidia: spindle-shaped, rough, thick walled with knoblike ends, >6 comparments; microconidia: few, club shaped, smooth |
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Term
| Microsporum gypseum complex growth rate |
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Definition
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Term
| Microsporum gypseum complex plate morphology |
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Definition
| Surface: flat, powdery to granular, irregular fringed border, 1st buff, then tan to cinnamon brown; reverse: yellow, orange tan, brownish red or purplish red |
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Term
| Microsporum gypseum complex microscopic morphology |
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Definition
| Septate hyphae; macroconidia: numerous, rough, symmetric, round ends, relatively thin walled, < 6 compartments; microconidia: usually present, club shaped |
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Term
| Trichophyton mentagrophytes growth rate |
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Definition
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Term
| Trichophyton mentagrophytes plate morphology |
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Definition
| Surface: varies, buff & powdery or white & downy, concentric & radial folds; reverse: usually brownish tan |
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Term
| Trichophyton mentagrophytes microscopic morphology |
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Definition
| Septate hyphae, coiled spirals; macroconidia: sometimes present, cigar shaped, thin walled, 1-6 cells; microconidia: round, clustered on branched conidiophores |
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Term
| Trichophyton rubrum growth rate |
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Definition
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Term
| Trichophyton rubrum plate morphology |
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Definition
| Surface: granular or fluffy, white to buff; Reverse: deep red or purplish |
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Term
| Trichophyton rubrum microscopic morphology |
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Definition
| Septate hyphae; macroconidia: numerous, rare or absent, long, narrow, thin wall, 2-8 cells; microconidia: small tear drop shaped borne laterally on hyphae |
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Term
| Trichophyton tonsurans growth rate |
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Definition
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Term
| Trichophyton tonsurans plate morphology |
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Definition
| Surface: variable color, usually suedelike with many radial or concentric folds; reverse: usually reddish brown |
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Term
| Trichophyton tonsurans microscopic morphology |
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Definition
| Septate hyphae, may have spirals & arthroconidia; macroconidia: rare, irregular in form; microconidia: along hyphae or on short conidiophores perpendicular to hyphae, teardrop but may enlarge to round “balloon” forms |
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Term
| Trichophyton schoenleini growth rate |
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Definition
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Term
| Trichophyton schoenleini plate morphology |
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Definition
| Surface: whitish, waxy, or slightly downy, heaped or folded; reverse: colorless or yellowish orange to tan |
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Term
| Trichophyton schoenleini microscopic morphology |
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Definition
| Septate hyphae, highly irregular & knobby, antler-like branches; numerous chlamydioconidia; macroconidia: none; microconidia: rare |
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Term
| Identification of Trichophyton species |
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Definition
Trichophyton agars: series or 7 agars containing different growth factors (inositol, thiamine, nicotinic acid, histidine)
and
Hair perforation test : [T. mentagrophytes (+); T. rubrum (-)] |
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Term
| Epidermophyton floccosum growth rate |
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Definition
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Term
| Epidermophyton floccosum plate morphology |
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Definition
| Surface: brownish yellow to olive gray to khaki, lumpy then folded in center with radial grooves then velvety; reverse: orange to brownish |
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Term
| Epidermophyton floccosum microscopic morphology |
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Definition
| Septate hyphae; macroconidia: thin & slightly thick walled, smooth, club shaped with rounded ends, 2-6 cells, singly or in clusters; microconidia: none |
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Term
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Definition
| sporeangiophores between rhizoids, small collerette |
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Term
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Definition
| Turns yellow on plate, sporangiophores opposite rhizoids, no collerette |
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Term
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Definition
| turns gray, no rhizoids, possible collerette |
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