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Chaetomium sp.

Ascomycete.
Distribution Where Found Mode of Dissemination
Ubiquitous;
cosmopolitan.
Approx. 81 species.
Soil, seeds, cellulose substrates, dung, woody and straw materials. Spores are formed inside fruiting bodies. Spores are forced out an opening and spread by wind, insects, water splash.
Allergen Potential Opportunist or Pathogen Potential Toxin Production
Not well studied.
Type I allergies (hay fever, asthma).
Uncommon agent of onychomycosis (nail infection). Chaetomin. Chaetomium globosum produces chaetoglobosins. Sterigmatocystin is produced by rare species. Other compounds produced (which may not be mycotoxins in the strict sense) include a variety of mutagens.
Growth Indoors Industrial Uses Other Comments
Widespread, cellulolytic, very commonly found on damp sheetrock paper. Used in textile testing and the production of cellulase. None.
Characteristics: Growth/Culture Notes on Spore Trap Recognition Notes on Tape Lift Recognition
Grows and sporulates on general fungal media, may need 8-20 days for fruiting body production and sporulation. Distinctive. Chaetomium globosum has small brown "lemon" or "football-shaped" ascospores. Distinctive and readily identifiable on tape lifts.
Photographs:
Photo  

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