Abstract
Consumption of E. coli cells by Daphnia magna was studied. It was found that this organism not only ingested E. coli cells but digested them as demonstrated by the release of 14CO2 originating from E. coli grown on 14C-glucose, and by the transfer of the radioactive label from parental Daphnia to their progenies. In addition the effect of antibiotics on the consumption of E. coli cells by Daphnia magna was studied. In long incubation times, antibiotics inhibited bacterial uptake by Daphnia. The microflora isolated from Daphnia was found to be capable of causing leakage of enzymes out of E. coli cells thus playing at least a partial role in the digestion of E. coli cells by Daphnia.
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Hadas, O., Bachrach, U., Kott, Y. et al. Assimilation of E. coli cells by Daphnia magna on the whole organism level. Hydrobiologia 102, 163–169 (1983). https://doi.org/10.1007/BF00006343
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DOI: https://doi.org/10.1007/BF00006343