World of Dermatophytes: A Pictorial Prov Lab Home

Microsporum nanum [M. gypseum] [M. persicolor]

Microsporum nanum colonial morphology on PYE
Microsporum nanum phase contrast microscopy
Microsporum nanum biochemicals - Photo not available
Colonial Morphology Microscopic Morphology
Phase Contrast
Biochemical Reactions:
BCP, SDA and Urease
  • Growth rate: moderate
  • Texture: suede like to powdery, thin, spreading
  • Thallus color: cream to buff, becoming dark beige
  • Reverse: red brown
  • rough, thin walled macroconidia, 1 to 3 celled, pear to egg shaped, truncated base many borne on stalks
  • occasional club shaped microconidia
  • Urease: positive
  • Hair perforation: positive
  • Vitamin requirement: none

Compare to and
Differentiate from:

  • not available
Etiology & Ecology