Aspergillus niger under the foldscope

Aspergillus niger is a fungus and one of the most common species of the genus Aspergillus.

It causes a disease called “black mold” on certain fruits and vegetables such as grapes, apricots, onions, and peanuts, and is a common contaminant of food. It is ubiquitous in soil and is commonly reported from indoor environments, where its black colonies can be confused with those of stachybotrys.

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