Hahn, Meike Anika, Effertz, Christoph, Bigler, Laurent ORCID: 0000-0003-3548-3594 and von Elert, Eric
ORCID: 0000-0001-7758-716X
(2019).
5 alpha-cyprinol sulfate, a bile From fish, induces diel vertical migration in Daphnia.
eLife, 8.
CAMBRIDGE:
ELIFE SCIENCES PUBLICATIONS LTD.
ISSN 2050-084X
Abstract
Prey are under selection to minimize predation losses. In aquatic environments, many prey use chemical cues released by predators, which initiate predator avoidance. A prominent example of behavioral predator-avoidance constitutes diel vertical migration (DVM) in the freshwater microcrustacean Daphnia spp., which is induced by chemical cues (kairomones) released by planktivorous fish. In a bioassay-guided approach using liquid chromatography and mass spectrometry, we identified the kairomone from fish incubation water as 5 alpha-cyprinol sulfate inducing DVM in Daphnia at picomolar concentrations. The role of 5 alpha-cyprinol sulfate in lipid digestion in fish explains why from an evolutionary perspective fish has not stopped releasing 5 alpha-cyprinol sulfate despite the disadvantages for the releaser. The identification of the DVM-inducing kairomone enables investigating its spatial and temporal distribution and the underlying molecular mechanism of its perception. Furthermore, it allows to test if fish-mediated inducible defenses in other aquatic invertebrates are triggered by the same compound.
Item Type: | Journal Article | ||||||||||||||||||||
Creators: |
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URN: | urn:nbn:de:hbz:38-148596 | ||||||||||||||||||||
DOI: | 10.7554/eLife.44791 | ||||||||||||||||||||
Journal or Publication Title: | eLife | ||||||||||||||||||||
Volume: | 8 | ||||||||||||||||||||
Date: | 2019 | ||||||||||||||||||||
Publisher: | ELIFE SCIENCES PUBLICATIONS LTD | ||||||||||||||||||||
Place of Publication: | CAMBRIDGE | ||||||||||||||||||||
ISSN: | 2050-084X | ||||||||||||||||||||
Language: | English | ||||||||||||||||||||
Faculty: | Unspecified | ||||||||||||||||||||
Divisions: | Unspecified | ||||||||||||||||||||
Subjects: | no entry | ||||||||||||||||||||
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Refereed: | Yes | ||||||||||||||||||||
URI: | http://kups.ub.uni-koeln.de/id/eprint/14859 |
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