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Microsporum canis
Microsporum canis is a causative agent of Dermatomycosis, Dermatophytosis, Tinea capitis and Tinea corporis. (Information from www.doctorfungus.org @ 2005)
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| Microsporum canis Mold Pictures
(Image Courtesy of www.doctorfungus.org @ 2005)
Microscopic morphology of
the zoophilic dermatophyte Microsporum canis showing typical
spindle - shaped, verrucuse, thick - walled macroconidia with 5 - 15
cells.
(Image Courtesy of www.doctorfungus.org @ 2005)
Colony morphology of Microsprum canis on mycobiotic agar showing a spreading whitish, cottony surface growth with a golden - yellow reverse pigment. However, non - pigmented strains may also occur.
(Image Courtesy of www.doctorfungus.org @ 2005)
Severe inflammatory kerion lesion and suppurative folliculitis produced by infection with M. canis.
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Ecology Microsporum canis is a cosmopolitan fungus which is considered as a zoophilic dermatophyte. It is commonly isolated from cats and dogs.
Pathogenicity and Health Effects Macroscopic Appearance Ø Growth rate is rapid and colonies are flat to sparsely grooved, texture is downy to wooly, and the diameter ranges from 3 to 9 cm after incubation on Sabouraud dextrose agar for 7 days at 25°C; and Ø The surface colony color is white to yellowish while the reverse ranges from deep yellow to yellow – orange, occasionally pale.
Microscopic Appearance Ø Septate hyphae, macroconidia, and microconidia are present; Ø Macroconidia are numerous, spindle – shaped with somewhat re - curved at the apex, with a thick and echinulate cell wall containing 6 to 15 cells; and Ø Microconidia are unicellular, clavate to pyriform in shape, and are rarely present. |
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The mycological information gathered and |
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