World of Dermatophytes: A Pictorial Prov Lab Home

Microsporum equinum [M. canis] [M. ferrugineum]

Microsporum equinum colonial morphology on PDA
Microsporum equinum phase contrast microscopy
Microsporum equinum biochemicals
Colonial Morphology
Microscopic Morphology
Phase Contrast
Biochemical Reactions:
BCP, SDA and Urease
  • Growth rate: rapid
  • Texture: suede like to velvety, flat, folded, spreading
  • Thallus color: buff to pale salmon
  • Reverse: salmon to pinkish brown on PDA, buff to yellow on SDA
  • rough, thick walled macroconidia, broad, irregular spindle shaped, similar to M. canis
  • macroconidia stimulated on urea agar
  • rare, pyriform microconidia
  • BCP: moderate growth, alkaline
  • Urease: positive (more than 10 days)
  • Hair perforation: negative
  • Rice: macroconidia production induced, poor growth, brown discoloration

Compare to and
Differentiate from:

Etiology & Ecology