Organism Colony Morphology: Types And Type Of Zygomycosder

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Zygomycetes

Name of Organism Colony Morphology
(Front and Reverse) Microscopic Morphology Type of Infections Caused
Pathogenicity Growth Rate Additional Info
Rhizopus
(Example) Front: fluffy gray-white
‘lid lifter’ Conidiophore with rhizoids at base and sporangium filled with spores at apex
Wide, ‘ribbon-like’ hyphae Invasive sinus
Progresses rapidly
Can be fatal Fast
Mucor Front: fluffy, White and gray with age. “ lid lifter” Resemble to Rhizopus in Sporaniphore and sporangium and the differ by rhizoids mucormycosis Very fast
Absidia Front: fluffy, at the first white and pale gray with age
“Lid lifter” Between the sporangiophores we see the originated Rhizoids Zygomycosis Fast
Lichtheimia Front: fluffy, white- gray or
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Micro is numerous and club shaped
Nodular bodies may present Dermatophytosis( body& scalp) from dogs and cats
And infected hair fluoresce Slow
Microsporum audouinii Front: Matted-velvety white to salmon
Reverse: tan to salmon if grown on PDA Rare, irregular, thick and rough walls, 2-9 cells Macroconidia.Microconidia rare and bizarre shaped terminal chlamydospores seen Dermatophytosis ( body&scalp) causes tinea capitis , infected hairs fluoresce
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Epidermophyton floccosum Front: powdery olive green surrounded by orange-brown Chlamydoconidia produced of Macroconidia and no Microconidia Associated with Jock Itch Slow

Module 10: Mycology - Learning Outcomes Organism Chart
Opportunistic

Name of Organism Colony Morphology
(Front and Reverse) Microscopic Morphology Type of Infections Caused
Pathogenicity Growth Rate Additional Info
Aspergillus fumigatus Front: fluffy to granular, white to blue- green colony
( most recovered species) Septate hyphae with short or long conidiophores “foot cell” that T or L shaped Causing disseminated infection that seen in immunocompromised patients
Otomycosis and onychomycosis Fast
2-6 days
Aspergillus flavus Front: Yellow green colony and the edge is light The vesicles are globose and the phialides produced directly from the vesicle( uniserate)
Or from primary row of cells ( biserate) Tissue invasion of immunocompromised Fast
1-5 days
Aspergillus niger Darkly pigmented and roughened spores
( start yellow and turn black soon)
Reveres: buff or creamy Septate hyphae with long conidiophores that support the spherical vesicles lead to rise and large metulaeand smaller phialides Invade the tissue of the immunocompromised patients Fast
2-6 days
Aspergillus terreus Front: white to tan,

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