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Aureobasidium
Wed, 08/19/2009 - 10:52 — aemtek
Genus:
Aureobasidium
Distribution:
About 7 species reported worldwide, mainly in temperate regions.
Substrate:
Isolated from soil, plant leaf surfaces, foods, drinks, and other organic materials.
Dispersal:
Dispersed by water droplet and wind.
Indoor Occurance:
A common indoor contaminant, often found in bathrooms, kitchens, window sills, textiles, etc.
Allergenicity:
Associated with allergic rhinitis (hay fever), asthma, and hypersensitivity pneumonitis.
Pathogenicity:
Aureobasidium pullulans is a saprophyte, often isolated from human cutaneous surfaces, but rarely causes keratitis or cutaneous infection.
Notes On Identification:
Not distinctive on spore trap sample. Can be identified on surface samples if the sporulating structure is present.
Teleomorph:
Discosphaerina
Spore Types:
Blastoconidia hyaline, unicellular, smooth, often producing secondary conidia. Dark hyphae may form chlamydospores or arthroconidia, which are brown, unicellular or bicellular. Common species: A. pullulans.
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