Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 544256
Title Identification of Chaoborus kairomone chemicals that induce defences in Daphnia
Author(s) Weiss, Linda C.; Albada, Bauke; Becker, Sina M.; Meckelmann, Sven W.; Klein, Julia; Meyer, Martin; Schmitz, Oliver J.; Sommer, Ulf; Leo, Markus; Zagermann, Johannes; Metzler-Nolte, Nils; Tollrian, Ralph
Source Nature Chemical Biology 14 (2018). - ISSN 1552-4450 - p. 1133 - 1139.
DOI https://doi.org/10.1038/s41589-018-0164-7
Department(s) Organic Chemistry
Publication type Refereed Article in a scientific journal
Publication year 2018
Abstract

Infochemicals play important roles in aquatic ecosystems. They even modify food web interactions, such as by inducing defenses in prey. In one classic but still not fully understood example, the planktonic freshwater crustacean Daphnia pulex forms specific morphological defenses (neckteeth) induced by chemical cues (kairomones) released from its predator, the phantom midge larva Chaoborus. On the basis of liquid chromatography, mass spectrometry, and chemical synthesis, we report here the chemical identity of the Chaoborus kairomone. The biologically active cues consist of fatty acids conjugated to the amino group of glutamine via the N terminus. These cues are involved in Chaoborus digestive processes, which explains why they are consistently released despite the disadvantage for its emitter. The identification of the kairomone may allow in-depth studies on multiple aspects of this inducible defense system.

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