Aspergillus niger/Macroscopy/Microscopy

Aspergillus niger"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 (species of which have also been called "black mold").Some strains of A. niger have been reported to produce potent mycotoxins called ochratoxins;other sources disagree, claiming this report is based upon misidentification of the fungal species.Recent evidence suggests some true A. niger strains do produce ochratoxin A.It also produces the isoflavone orobol. #Mycology