Universität zu Köln

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

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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:	Creators Email ORCID ORCID Put Code Hahn, Meike Anika UNSPECIFIED UNSPECIFIED UNSPECIFIED Effertz, Christoph UNSPECIFIED UNSPECIFIED UNSPECIFIED Bigler, Laurent UNSPECIFIED orcid.org/0000-0003-3548-3594 UNSPECIFIED von Elert, Eric UNSPECIFIED orcid.org/0000-0001-7758-716X UNSPECIFIED
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
Uncontrolled Keywords:	Keywords Language PREDATOR-AVOIDANCE; CHEMICAL CUES; ULTRAVIOLET-RADIATION; ZOOPLANKTON; KAIROMONE; BEHAVIOR; CONSEQUENCES; COMMUNITIES; EVOLUTION; BACTERIA Multiple languages Biology Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/14859