Microsporum vanbreuseghemii Species

Microsporum vanbreuseghemii colonies grow moderately rapidly and mature in a week. The texture is flat, spreading and granular to velvety. The front color is cream yellow, lavender pink or tan. A lemon yellow or yellow to orange diffusible pigment is observed from the reverse.

Microsporum vanbreuseghemii produces septate branching hyphae, macroconidia, and microconidia. Macroconidia are 6- to 13-celled, cylindrical (pencil-shaped) to fusiform, rough, and thick-walled. Microconidia are unicellular and obovoid to pyriform in shape.

In vitro hair perforation test is positive. The teleomorph state of Microsporum vanbreuseghemii is called Arthroderma grubyi. It mostly infects cats, dogs, and squirrels. It is a rare cause of tinea corporis in man.

[1295]

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Sabouraud dextrose agar (SDA), reverse of the colony

SDA, front of the colony

References

1295. Larone, D. H. 1995. Medically Important Fungi - A Guide to Identification, 3rd ed. ASM Press, Washington, D.C.