The sense of smell in Odonata: An electrophysiological screening |
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| Affiliation: | 1. Dipartimento di Chimica, Biologia e Biotecnologie, University of Perugia, Italy;2. Dipartimento di Scienze Agrarie, Alimentari e Ambientali, University of Perugia, Italy;1. Clinical Research Fellow, Department of Plastic and Oral Surgery, Boston Children''s Hospital, Harvard Medical School, Boston, MA;2. Dental Student, Harvard School of Dental Medicine, Boston, MA;3. Associate Professor, Harvard School of Dental Medicine, Oral Surgeon in Chief, Department of Plastic and Oral Surgery, Boston Children''s Hospital, Boston, MA;1. Laboratory of Toxinology, Department of Physiological Sciences, Institute of Biological Sciences, University of Brasilia, Campus Universitário Darcy Ribeiro, Brasília, DF, Brazil;2. Department of Biological Sciences, Federal University of Goiás, Campus Catalão, Goiás, Brazil;3. Center of Biochemical and Proteomic Analysis of Brasilia, Catholic University of Brasilia, Brasília, DF, Brazil;1. Department of Food Science, Faculty of Sciences, University of Copenhagen, Rolighedsvej 26, DK-1958 Frederiksberg C, Denmark;2. Department of Animal Science, Aarhus University, Blichers Allé 20, P.O. Box, DK-8830 Tjele, Denmark;3. Danish Agriculture & Food Council, Pig Research Centre, Axeltorv 3, 1609 Copenhagen V, Denmark;1. Muséum National d''Histoire Naturelle, Institut de Systématique, Evolution, Biodiversité, ISYEB, UMR 7205 CNRS UPMC EPHE, CP50, 45 rue Buffon, F-75005 Paris, France;2. IPHEP, UMR7262 CNRS, Université de Poitiers, TSA 51106, 6 rue M. Brunet, 86073 Poitiers, France;3. Laboratoire de Géologie, UMR 5276 CNRS, Université Lyon 1 (Claude Bernard), Campus La Doua, Bât. Géode, 43 boulevard du 11 Novembre 1918, 69622 Villeurbanne, France;4. Palaios, Research Association, 86300 Valdivienne, France;1. Earth System Science, University of Exeter, UK;2. Natural Science and Psychology, Liverpool John Moores University, UK;3. School of Life Sciences, University of Lincoln, UK |
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| Abstract: | Volatile chemicals mediate a great range of intra- and interspecific signalling and information in insects. Olfaction has been widely investigated mostly in Neoptera while the knowledge of this sense in most basal insects such as Paleoptera (Odonata and Ephemeroptera) is still poor. In the present study we show the results of an electrophysiological screening on two model species, Libellula depressa (Libellulidae) and Ischnura elegans (Coenagrionidae), representatives of the two Odonata suborders Anisoptera and Zygoptera, with the aim to deep the knowledge on the sense of smell of this insect order. The antennal olfactory sensory neurons (OSNs) of these two species responded to the same 22 compounds (out of 48 chemicals belonging to different functional groups) encompassing mostly amines, carboxylic acids or aldehydes and belonging to green leaf volatiles, vertebrate related volatiles and volatiles emitted by standing waters bacteria. The properties of Odonata OSNs are very similar to those of ionotropic receptors (IRs) expressing OSNs in other insects. |
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| Keywords: | Odonata Aquatic insects Electrophysiology Olfaction |
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