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. 1972 Jun;110(3):1147-53.
doi: 10.1128/jb.110.3.1147-1153.1972.

Predator-prey interactions of Dictyostelium discoideum and Escherichia coli in continuous culture

H M Tsuchiya, J F Drake, J L Jost, A G Fredrickson

Predator-prey interactions of Dictyostelium discoideum and Escherichia coli in continuous culture

H M Tsuchiya et al. J Bacteriol. 1972 Jun.

Abstract

Dictyostelium discoideum and Escherichia coli were aerobically propagated in mixed continuous culture in a predator-prey relationship, and the effects of temperature and holding times were examined. Oscillations developed in the concentration of glucose, the limiting substrate for E. coli, and in the densities of the two populations, but eventually steady-state populations were reached. The experimental data were analyzed according to the Lotka-Volterra model for prey-predator relationships and by the Monod model for saturation kinetics. A comparison of the adequacy of the two models in describing predation is given.

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