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Microsporum audouinii
Microsporum audouinii is a causative agent of Tinea capitis. (Information from www.doctorfungus.org @ 2005)
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Microsporum audouinii Mold Pictures
A microscopic photograph of Microsporum audouinii taken by our Mold Microbiologist, Ma. Adee Light E. Hilado for mold species documentation.
Take note of the microscopy morphology of M. audouinii showing several thick - walled intercalary chlamydoconidia and a terminal chlamydoconidium. (Information from DoctorFungus.org and A Clinical Laboratory Handbook: Identifying Filamentous Fungi)
(Image Courtesy of www.doctorfungus.org @ 2005)
Take note of the colony morphology of Microsporum audouinii on mycobiotic agar showing a flat, spreading, downy white surface with a salmon or peach-pink reverse pigment.
(Image Courtesy of www.doctorfungus.org @ 2005)
Take note of the lesions on the scalp of the boy due to Microsporum audouinii.
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Ecology Microsporum audouinii is a cosmopolitan fungus which is considered as an anthropophilic dermatophyte. It is uncommonly isolated in North America and Europe but is mainly present in Africa, Haiti, and Rumania as it is widely eradicated in much of the world.
Pathogenicity and Health Effects Macroscopic Appearance Ø Growth rate is slow and colonies are flat, dense, spreading, and texture is felty to downy with a fur – like mat with radiating edges; and Ø The surface colony color ranges from grayish white, beige, and rarely rusty while the reverse is salmon pink, peach to rose brown.
Microscopic Appearance Ø Septate hyphae, sometimes pectinate or with racquet cell are produced by Microsporum audouinii; Ø Terminal chlamydoconidia are often present which have short, spine – like projections showing a pointed appearance at the tip Ø Smooth to sparsely echinulate, essentially spindle – shaped but usually deformed, thick - walled macroconidia are rarely present; and Ø Microconidia are unicellular, ovoid to clavate in shape, are rarely present.
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The mycological information gathered and |
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