Chapter: Medical Microbiology: An Introduction to Infectious Diseases: Dermatophytes, Sporothrix, and Other Superficial and Subcutaneous Fungi

Sporothrix schenckii

S. schenckii is a dimorphic fungus that grows as a cigar-shaped, 3- to 5-mm yeast (Fig 47–2) in tissues and in culture at 37°C.

Sporothrix

Sporothrix schenckii

S. schenckii is a dimorphic fungus that grows as a cigar-shaped, 3- to 5-mm yeast (Fig 47–2) in tissues and in culture at 37°C. In addition to the mannan, glucan, and chitin found in the cell wall of other fungi, the cell wall of S. schenckii contains a unique substance, L-rhamnose, in complexes with mannan. The mold, which grows in culture at 25°C, is presumably the infectious form in nature. The hyphae are thin and septate, producing clusters of conidia at the end of delicate conidiophores (see Fig 47–2B).

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Medical Microbiology: An Introduction to Infectious Diseases: Dermatophytes, Sporothrix, and Other Superficial and Subcutaneous Fungi : Sporothrix schenckii |