Supplementation with sterols improves food quality of a ciliate for Daphnia magna.

@article{MartinCreuzburg2006SupplementationWS,
  title={Supplementation with sterols improves food quality of a ciliate for Daphnia magna.},
  author={Dominik Martin-Creuzburg and Alexandre Bec and Eric von Elert},
  journal={Protist},
  year={2006},
  volume={157 4},
  pages={477-86}
}
Experimental results provide evidence that trophic interactions between ciliates and Daphnia are constrained by the comparatively low food quality of ciliates. The dietary sterol content is a crucial factor in determining food quality for Daphnia. Ciliates, however, presumably do not synthesize sterols de novo. We hypothesized that ciliates are nutritionally inadequate because of their lack of sterols and tested this hypothesis in growth experiments with Daphnia magna and the ciliate Colpidium… CONTINUE READING

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