Aspergillus versicolor

A microscopic and colony photo of Aspergillus versicolor.

Health Effects

The toxins produced can cause diarrhea and upset stomach. The toxin, sterigmatocystin is reported to be potential human liver carcinogen.

Growth Locations

It is commonly found in soil, hay, cotton, and dairy products. It is commonly found growing in water damaged carpet and building materials.

Potential Opportunist or Pathogen

This species is only occasionally pathogenic (26).

Potential Toxin Production

It can produce a mycotoxin sterigmatocystin and cyclopiaxonic acid (5).

Spore Size

Conidia dimensions 2 - 3.5 microns (5).

Water Activity

0.78 (5). 0.75-0.81 (36)

Mold Reference Key

Abbreviation Reference
Aw Water Activity (Equilibrium relative humidity/100)
E Paul Ellringer
MAC McGregor Pearce - personal experience
NC Neil Carlson - personal experience
(1-27) Refer to Fungal Reference page

N. Carlson 9/92; Rev. 4/93, 7/93, 9/93, 1/94, 2/94,2/95,4/95, 5/96, 7/96

aspergillus versicolor
A microscopic and colony photo of Aspergillus versicolor.