Aspergillus niger

Characteristics: An uncommon cause of aspergillosis, but does cause ear, nose, and lung infections especially in immunocompromised people. As a pathogen, it has been found to be isolated from human external ears, a cutaneous infection of a bone marrow transplant recipient, and pulmonary infections. As a toxigenic agent, it produces metabolites of low animal toxicity.

Description: It is often found in soil and plant debris, particularly notable as a contaminant of spices and other sun-dried plant products. It is one of the most commonly reported fungi from foods. For indoor growth this fungus is often seen in indoor environments, but not generally associated with contaminated building materials. Usually it is found in floor, carpet, mattress dust, acrylic paint, polyester polyurethane foam, polyurethane footwear, leather, cosmetics, widgets, HVAC filters and fans, bakeries, cotton mills, cotton yarn, hey, cereals, cottonseed, and potted plant soil. As a toxigenic agent, it produces metabolites of low animal toxicity. Aspergillus is one of the most common fungal genera, worldwide, and Aspergillus fumigatus is one of the most common species found.


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