title: Analysis of two interacting bacterial populations with opposite substrate preferences.
abstract: Interactions between two bacterial species which exhibit opposite substrate preferences in response to the same environmental conditions were investigated. Klebsiella oxytoca preferentially utilizes glucose over citrate as a substrate while Pseudomonas aeruginosa utilizes citrate over glucose. Both species were grown on single as well as mixed substrates, namely, D-glucose and citrate, with various ratios of inocula and substrates. Competition is observed between the two species with citrate alone while amensalism is observed with glucose alone. In mixed cultures-mixed substrates experiments, amensalism of K. oxytoca on P. aeruginosa prevailed until the exhaustion of glucose.
authors.affiliation: Department of Chemical Engineering, University of Delaware, Newark, Delaware 19716.
authors.forename: S U
authors.initials: SU
authors.lastname: Kim
authors.forename: P
authors.initials: P
authors.lastname: Dhurjati