A mutant microorganism that requires a particular nutrient that is not required by the wild type organism. ... Compare: auxotroph, polyauxotroph. ... (05 Mar 2000) ... 
Type: Term Pronunciation: mon′ō-awks′ō-troph Definitions: 1. A mutant microorganism that requires a particular nutrient that is not required by the wild-type organism.
monoauxotroph A mutant microorganism that requires a particular nutrient that is not required by the wild type of organism.