auxotrophic mutant

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Related to auxotrophy: prototrophy, auxotrophs

auxotrophic mutant

[¦ȯk·sə¦trä·fik ′myüt·ənt]
(genetics)
An organism that requires a specific exogenous growth factor, such as an amino acid, for its growth.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Use of uridine auxotrophy (ura3) for markerless transformation of the mycoinsecticide Beauveria bassiana.
(2011) The genome of thl7 cell-inducing segmented filamentous bacteria reveals extensive auxotrophy and adaptations to the intestinal environment.
Deletion in the Shigella enterotoxin genes further attenuates Shigella flexneri 2a bearing guanine auxotrophy in a phase 1trial of CVD 1204 and CVD 1208.
ANEp2 was used to functionally test for complementation of uridine auxotrophy and reporter gene expression in an A.
Furthermore, a purine and pyrimidine metabolism, pathways for canonical amino acids, were identified, rendering auxotrophy an unlikely event (Siegl et al., 2011).
coli showed auxotrophy that can be suppressed by a rpoB mutation ([beta]T563P), which also suppresses the auxotrophy of a (p)ppGpp negative strain, called [(p)ppGpp.sup.0] strain (17).
aureus, confirmed by polymerase chain reaction amplification of the nuc and coa genes as well as by determination of the strain's auxotrophy for hemin.