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Aspergillus terreus
Wed, 08/19/2009 - 10:52 — aemtek
Genus:
Aspergillus
Species:
terreus
Distribution:
Distributed worldwide, more frequent in tropical and subtropical regions.
Substrate:
Commonly isolated from soil and various organic materials, such as decaying wood, cotton, cereals, flour.
Dispersal:
Conidia or chains of conidia easily become airborne and are dispersed by wind.
Indoor Occurance:
A common indoor contaminant, found in floor, carpet, and mattress dust, decomposing organic materials, air, and sometimes on building materials
Allergenicity:
Allergenic. (see record 6)
Pathogenicity:
Opportunistic pathogen, occasionally causing pulmonary aspergillosis and cerebral infection in immunocompromised people.
Notes On Identification:
Not distinctive on spore trap samples. Genus can be identified on surface or bulk samples if the entire sporulating structure is present. Species identification requires mycological examination of aporulating cultures or molecular methods.
Spore Types:
Conidia 2-2.5 µm in diameter, brown, globose, smooth, in chains.