Aureobasidium pullulans is a ubiquitous
black, yeast-like fungus that can be found in different environments (e.g. soil, water, air and limestone). It is well known as a naturally occurring
epiphyte or
endophyte of a wide range of plant species (e.g.
apple,
grape, cucumber, green beans, cabbage) without causing any symptoms of disease.
A. pullulans has a high importance in
biotechnology for the production of different enzymes,
siderophores and
pullulan. Furthermore,
A. pullulans is used in biological control of plant diseases, especially storage diseases.