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Alternaria alternata
Wed, 08/19/2009 - 10:52 — aemtek
Genus:
Alternaria
Species:
alternata
Distribution:
Worldwide occurrence.
Substrate:
It is present in the soil and on a wide variety of plants. This fungus is also commonly found on food and indoors.
Indoor Occurance:
Commonly present in the floor, carpet and mattress dust. It is also sparsely found in gypsum board and wallpaper. It is found in damp sites like wet joinery, humidifier, window putty, paint etc. It may also be present on textiles, hay, fruits and cere
Pathogenicity:
Alternia alternata allergens are also known to cause rhinitis, asthma, dermatitis and sinusitis.
Notes On Identification:
Spores are distinguisable on spore trap and surface samples to identify this fungus to the genus level. Conidia are often in chains, ovoid or elipsoidal, often with a beak, conidia dimensions are 18-83 x 7-18 um with several transverse and longitudinal s
Teleomorph:
Clathospora diplospora (Ellis & Everh.) Wehm. , Clathospora elynae Rabenh., Leptosphaeria heterospora (de Not.) Niessl.