PMID:786198
| Citation |
Dent, VE, Bazin, MJ and Saunders, PT (1976) Behaviour of Dictyostelium discoideum amoebae and Escherichia coli grown together in chemostat culture. Arch. Microbiol. 109:187-94 |
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| Abstract |
When Dictyostelium discoideum amoebae and Escherichia coli were grown together in chemostat culture damped oscillations in the population densities of the organisms occurred followed by a sudden increase in bacterial numbers and a concommitant decrease in the number of amoebae. After the system had come to equilibrium altering the dilution rate resulted in a monotonic change in the experimental variables to new steady state levels. A square wave increase in the concentration of limiting nutrient in the feed medium during the oscillatory phase of culture produced a sinusoidal response indistinguishable from that prior to the perturbation. The results are more complicated than those predicted by simple models of microbial predator-prey dynamics although they correspond most nearly to models which incorporate saturation kinetics. |
| Links | |
| Keywords |
Animals; Cell Count; Culture Media; Dictyostelium/growth & development; Ecology; Escherichia coli/growth & development; Models, Biological; Myxomycetes/growth & development; Periodicity; Predatory Behavior |
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