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Characterization of the 5-HT1A receptor of the honeybee (Apis mellifera) and involvement of serotonin in phototactic behavior

  • Serotonin plays a key role in modulating various physiological and behavioral processes in both protostomes and deuterostomes. The vast majority of serotonin receptors belong to the superfamily of G-protein-coupled receptors. We report the cloning of a cDNA from the honeybee (Am5-ht1A) sharing high similarity with members of the 5-HT1 receptor class. Activation of Am5-HT1A by serotonin inhibited the production of cAMP in a dose-dependent manner (EC50 = 16.9 nM). Am5-HT1A was highly expressed in brain regions known to be involved in visual information processing. Using in vivo pharmacology, we could demonstrate that Am5-HT1A receptor ligands had a strong impact on the phototactic behavior of individual bees. The data presented here mark the first comprehensive study-from gene to behavior-of a 5-HT1A receptor in the honeybee, paving the way for the eventual elucidation of additional roles of this receptor subtype in the physiology and behavior of this social insect.

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Author details:Markus Thamm, Sabine Balfanz, Richarda Scheiner, Arnd Baumann, Wolfgang BlenauORCiDGND
URL:http://www.springerlink.com/content/101193
DOI:https://doi.org/10.1007/s00018-010-0350-6
ISSN:1420-682X
Publication type:Article
Language:English
Year of first publication:2010
Publication year:2010
Release date:2017/03/25
Source:Cellular and molecular life sciences. - ISSN 1420-682X. - 67 (2010), 14, S. 2467 - 2479
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Biochemie und Biologie
Peer review:Referiert
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