Related Experiment Video
Updated: Jun 6, 2026

Single Sensillum Recordings for Locust Palp Sensilla Basiconica
Published on: June 23, 2018
Candidate chemosensory ionotropic receptors in a Lepidoptera
V Olivier1, C Monsempes, M-C François
1INRA, UMR 1272 INRA-UPMC PISC Physiologie de l'Insecte: Signalisation et Communication, route de Saint-Cyr, Versailles, France.
Abstract:
A new family of candidate chemosensory ionotropic receptors (IRs) related to ionotropic glutamate receptors (iGluRs) was recently discovered in Drosophila melanogaster. Through Blast analyses of an expressed sequenced tag library prepared from male antennae of the noctuid moth Spodoptera littoralis, we identified 12 unigenes encoding proteins related to D. melanogaster and Bombyx mori IRs. Their full length sequences were obtained and the analyses of their expression patterns suggest that they were exclusively expressed or clearly enriched in chemosensory organs. The deduced protein sequences were more similar to B. mori and D. melanogaster IRs than to iGluRs and showed considerable variations in the predicted ligand-binding domains; none have the three glutamate-interacting residues found in iGluRs, suggesting different binding specificities. Our data suggest that we identified members of the insect IR chemosensory receptor family in S. littoralis and we report here the first demonstration of IR expression in Lepidoptera.
More Related Videos
06:55Using Single Sensillum Recording to Detect Olfactory Neuron Responses of Bed Bugs to Semiochemicals
Published on: January 18, 2016
06:32Hybridization Chain Reaction RNA Whole-Mount Fluorescence In situ Hybridization of Chemosensory Genes in Mosquito Olfactory Appendages
Published on: November 17, 2023
Related Concept Videos
G-Protein Gated Ion Channels
Sensory organs,...
Chemotaxis in E. coli
Chemotaxis and Direction of Cell Migration
Cholinergic Receptors: Muscarinic
The subtypes M1, M3, and M5 couple with the Gq subunit and activate the phospholipase C (PLC) activity, mobilizing intracellular Ca2+. Activation...
Cholinergic Receptors: Nicotinic
There are two types of nicotinic receptors: neuromuscular (NM/NM/N1) and neuronal (NN/NN/N2). The two families differ based on their location and selectivity to...