In biology, a conspicuous mass of mycelium and fruiting structures produced by various fungi (division Mycota; see fungus ).
Molds of the genera Aspergillus , Penicillium , and Rhizopus are associated with food spoilage and plant diseases, but some have beneficial uses, as in the manufacture of antibiotics (e.g., penicillin ) and certain cheeses. Neurospora , or orange bread mold, has been invaluable in the study of biochemical genetics. Water molds live in fresh or brackish water or wet soils, absorbing dead or decaying organic matter. See also slime mold .
Mold on surface of jelly
(Left) Ingmar Holmasen, (right) Stephen Collins