Aspergillus ustus

Photo of Aspergillus ustus and the Hülle cells it occasionally produces. The ‘u’ in Hulle should have an umlaut.

Potential Opportunist or Pathogen

This species is only occasionally pathogenic (26). It can cause infections in severely immunocompromised people following a stem cell transplant. (35)

Growth Indoors

Found occasionally in water damaged carpet (30).

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 ustus
 Hülle cells Aspergillus ustus occasionally produces