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Acremonium sp.

Mitosporic fungus. Hyphomycetes.
Distribution Where Found Mode of Dissemination
Approx. 80-90 species.
Soil, dead organic debris, hay, food stuffs. Wet spore.
Insect/water droplet. Wind (old growth).
Allergen Potential Opportunist or Pathogen Potential Toxin Production
Type I allergies (hay fever, asthma).
Type III hypersensitivity pneumonitis: Humidifier lung.
Mycetoma, keratitis, onychomycosis. Other rare infections reported in immunodeficient patients, and in persons with wound injuries. Most species of Acremonium do not grow at 37°C. None other than cephalosporin (see industrial uses).
Growth Indoors Industrial Uses Other Comments
Requires very wet conditions.
Produces cephalosporins, an important class of antibiotics. Formerly called Cephalosporium.
Characteristics: Growth/Culture Notes on Spore Trap Recognition Notes on Tape Lift Recognition
Grows well on all general fungal media. Small white or pale shades of pink, salmon colonies. Membranous or thinly velvety. Not distinctive. Small one-celled, colorless spores. May be counted as "other colorless." Some spores are so small they may be missed. Forms chains or slimy heads of conidia. Readily identifiable on tape lift samples. Often found growing with Stachybotrys.

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