Barrel-shaped arthroconidia are characteristics of which one of the following fungi? (AIIMS Nov 2012)
a. Microscopic examination of fungal isolates is essential to the identification of the organism.
b. C. immitis is a dimorphic fungus. In tissue, the organism exists as a spherule filled with endospores.
c. When grown on solid media, the organism produces hyaline septate hyphae with barrel-shaped arthroconidia, which stain with lactophenol cotton blue.
d. Macroscopically, the colonies of Epidermophyton have a yellowish appearance.
e. This fungus invades skin and nails but never hair. On microscopic examination, clavate or paddle-shaped macroconidia are evident, with rounded ends and smooth walls. Microconidia are absent.
f. B. dermatitidis causes a chronic granulomatous disease. The yeast cells are globose or ovoid in shape. The single blastoconidium is attached by broad base to the parent cell.
g. M. canis is a dermatophyte that infects skin and hair but rarely nails. When hair is infected with this organism, it will fluoresce. Microscopic examination of this organism demonstrates rough-walled macroconidia of 8 to 15 cells.