TABLE 2.

Characteristics of the seven species of Malasseziaa

Characteristic or testbResult for:
M. furfurM. sympodialisM. pachydermatisM. globosaM. slooffiaeM. restrictaM. obtusa
Colony morphology and textureUmbonate, usually smooth, soft, friableFlat, smooth, shiny, softPale convex, smooth, soft, friableRough, course, brittleFinely folded, brittleDull, smooth, hard and brittleSmooth, flat, sticky
Colony colorCreamCream to buffCreamCream to buffCream to buffCreamCream
Cell shape and sizeElongated, oval or spherical, 6 μmOvoid, globose, 2.5–5 μm longCylindrical, 2.5–4.0 μm longSpherical, 6–8 μm in diameterCylindrical, 1.5–3.5 μm longSpherical, oval, 2–4 μmCylindrical, 4–6 μm
Budding patternBroad bud baseSome sympodial buddingBroad bud base, pronounced bud scarNarrow bud baseBroad bud baseNarrow bud baseBroad bud base
G+C content (%)66.462.255.653.568.759.960.7
Catalase reaction++v+++
DBB reaction+++++++
Urease reaction+++++++
Growth at 37°CGoodGoodGoodPoorGoodPoorPoor
Max growth temp (°C)40–4140–4140–413840–413838
Use as lipid source
    Tween 20+++
    Tween 40 or 60++++
    Tween 80+++
    Cremophor ELvv
Ability to split esculin+v+
  • a Data from references 167, 171, 278, 290, and 291.

  • b +, positive; −, negative; v, variable; DBB, diazonium blue B; Tween, Polyoxyethylene sorbitan.