Skip to Main content Skip to Navigation
Journal articles

Thymol Affects Congruency Between Olfactory and Gustatory Stimuli in Bees

Abstract : Honey bees learn to associate sugars with odorants in controlled laboratory conditions and during foraging. The memory of these associations can be impaired after exposure to contaminants such as pesticides. The sub-lethal effects of acaricides such as 5-methyl-2-(propan-2-yl)-phenol (thymol) introduced into colonies to control varroa mites are of particular concern to beekeeping, due to detrimental effects of some acaricides on bees. Here we assess whether various odorant/sugar pairs are identically memorized in a differential appetitive olfactory conditioning experiment and whether this learning is affected by thymol exposure. Responses to odorants in retrieval tests varied according to the sugar they were paired with, a property called congruency. Interestingly, congruency was altered by pre-exposure to some thymol concentrations during retrieval tests, although electroantennography recordings showed it left odorant detection intact. This highlights the importance of taking into account subtle effects such as odor/sugar congruency in the study of the effect of pesticides on non-target insects, in addition to the simpler question of memory impairment.
Complete list of metadata

Cited literature [47 references]  Display  Hide  Download

https://hal.sorbonne-universite.fr/hal-02149922
Contributor : Hal Sorbonne Université Gestionnaire <>
Submitted on : Thursday, June 6, 2019 - 5:43:18 PM
Last modification on : Thursday, December 10, 2020 - 11:07:55 AM

File

s41598-019-43614-8.pdf
Publication funded by an institution

Licence


Distributed under a Creative Commons Attribution 4.0 International License

Identifiers

Citation

Clara Chapuy, Lisa Ribbens, Michel Renou, Mathieu Dacher, Catherine Armengaud. Thymol Affects Congruency Between Olfactory and Gustatory Stimuli in Bees. Scientific Reports, Nature Publishing Group, 2019, 9 (1), pp.7752. ⟨10.1038/s41598-019-43614-8⟩. ⟨hal-02149922⟩

Share

Metrics

Record views

267

Files downloads

428