Pertaining to an auxotroph. ... (05 Mar 2000) ... 
(awk″so-tro´fik) requiring a growth factor not required by the parental or prototype strain; said of microbial mutants. requiring specific organic growth factors in addition to the carbon source present in a minimal medium.
(Of an isolate or strain of a micro-organism), having nutritional requirements additional to those of the 'wild type' , cf. prototrophic.
Type: Term Pronunciation: awk′sō-trof′ik, -trō′fik Definitions: 1. Pertaining to an auxotroph.
auxotrophic 1. A reference to a microorganism having a biochemical deficiency and requiring supplementary growth factors not needed by the wild type. 2. Requiring one or more specific substances for growth and metabolism that the parental organism was able to synthesize on its own. Used with respect to organisms; such as, strains of bacteria, alga...