Fig. 3
From: Tryptophan catabolism in Pseudomonas aeruginosa and potential for inter-kingdom relationship
Kynurenic acid concentrations ex vivo and hypothetical metabolic pathway. a Kynurenic acid concentrations in CHA (black), CHA∆kynA (dark gray) and CHA∆kynU (light gray) strains growth medium supernatants. All data from two experiments in duplicates. Error bars represent means +/− SD. b Hypothetical metabolic pathway responsible for bacterial synthesis of kynurenic acid