Do arthropods feel anxious during molts?
| Autor: | Marion Berthomieu, Julien Bacqué-Cazenave, Pascal Fossat, Jean-Paul Delbecque, Daniel Cattaert |
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| Přispěvatelé: | Institut de Neurosciences cognitives et intégratives d'Aquitaine (INCIA), Université Bordeaux Segalen - Bordeaux 2-Université Sciences et Technologies - Bordeaux 1-SFR Bordeaux Neurosciences-Centre National de la Recherche Scientifique (CNRS), Laboratoire de neurobiologie des réseaux (LNR), Université Sciences et Technologies - Bordeaux 1-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Tribologie et Dynamique des Systèmes (LTDS), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-École Nationale des Travaux Publics de l'État (ENTPE)-Ecole Nationale d'Ingénieurs de Saint Etienne-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2018 |
| Předmět: |
Male
030110 physiology 0301 basic medicine Feel Anxious Light Physiology medicine.drug_class [SDV.NEU.NB]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Neurobiology Zoology Astacoidea Molting Aquatic Science Biology Anxiolytic Benzodiazepines 03 medical and health sciences 0302 clinical medicine medicine Animals Molecular Biology ComputingMilieux_MISCELLANEOUS Ecology Evolution Behavior and Systematics [SDV.NEU.PC]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Psychology and behavior Crayfish Anti-Anxiety Agents Insect Science Exploratory Behavior Animal Science and Zoology Internal stress Moulting 030217 neurology & neurosurgery |
| Zdroj: | Journal of Experimental Biology Journal of Experimental Biology, The Company of Biologists, 2019, 222 (2), pp.jeb186999. ⟨10.1242/jeb.186999⟩ |
| ISSN: | 1477-9145 0022-0949 |
| DOI: | 10.1242/jeb.186999 |
| Popis: | The molting process of arthropods, chiefly controlled by ecdysteroids, is generally considered very stressful. Our previous investigations have shown that crayfish, after having experienced stressing situations, display anxiety-like behavior (ALB), characterized by aversion to light in a dark/light plus-maze (DLPM). In the present experiments, the spontaneous exploratory behavior of isolated crayfish was analyzed in a DLPM at different stages of their molt cycle. All tested animals displayed transitory aversion to light similar to ALB, before and, mostly, after molting, but not during intermolt. Injection of ecdysteroids into intermolt animals elicited ALB after a delay of 4 days, suggesting a long-term, possibly indirect, hormonal effect. Importantly, ecdysteroid-induced ALB was suppressed by the injection of an anxiolytic benzodiazepine. Thus, molts and their hormonal control impose internal stress on crayfish, leading to aversion behavior that has the main characteristics of anxiety. These observations are possibly generalizable to many other arthropods. |
| Databáze: | OpenAIRE |
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