title: Tryptophan auxotrophs of Rhizobium japonicum.
abstract: Eleven tryptophan-requiring mutants of Rhizobium japonicum I-110 ARS were isolated after nitrous acid mutagenesis and fell into five groups based on characterization by supplementation with intermediates and enzyme assays.
mesh_terms: D000877:Anthranilate Phosphoribosyltransferase / Q000235:genetics; D003470:Culture Media; D005798:Genes, Bacterial; D007209:Indole-3-Glycerol-Phosphate Synthase / Q000235:genetics; D009154:Mutation; D012231:Rhizobium / Q000235:genetics* / Q000254:growth & development / Q000378:metabolism; D014364:Tryptophan / Q000096:biosynthesis*; D014367:Tryptophan Synthase / Q000235:genetics*
chemical_list: D003470:Culture Media; D014364:Tryptophan; D000877:Anthranilate Phosphoribosyltransferase; D007209:Indole-3-Glycerol-Phosphate Synthase; D014367:Tryptophan Synthase