The spatial representation of chemical structures in the antennal lobe of honeybees: steps towards the olfactory code
- 1 November 1999
- journal article
- research article
- Published by Wiley in European Journal of Neuroscience
- Vol. 11 (11), 3970-3982
- https://doi.org/10.1046/j.1460-9568.1999.00826.x
Abstract
Odours are represented by specific ensembles of activated glomeruli in a combinatorial manner within the olfactory bulb of vertebrates or the antennal lobe (AL) of insects. Here, we optically measured glomerular calcium activities in vivo in the honeybee Apis mellifera during olfactory stimulation with 36 pure chemicals differing systematically in carbon chain length (C-5–10) and functional group (aldehyde, ketone, alcohol, carboxylic acid and alkane). We show their glomerular representations in 38 morphologically identified glomeruli out of the honeybee's 160. We measured the molecular receptive range of identified glomeruli averaging up to 21 individuals. Of the 38 glomeruli measured, 23 show maximal activity in a specific range of chain length. Glomeruli preferentially responding to a functional group are also always broadly tuned to particular chain lengths. Furthermore, glomeruli with similar response spectra are often direct neighbours. The results allow conclusions about the interactions between olfactory receptors and odour molecules, and about the AL network.Keywords
This publication has 49 references indexed in Scilit:
- A Novel Family of Divergent Seven-Transmembrane ProteinsNeuron, 1999
- Odour coding is bilaterally symmetrical in the antennal lobes of honeybees (Apis mellifera)European Journal of Neuroscience, 1998
- Representations of odours and odour mixtures visualized in the honeybee brainNature, 1997
- Visualizing an Olfactory Sensory MapCell, 1996
- Dynamical representation of odors by oscillating and evolving neural assembliesTrends in Neurosciences, 1996
- Structural plasticity of identified glomeruli in the antennal lobes of the adult worker honey beeJournal of Comparative Neurology, 1996
- The repellent scent-mark of the honeybeeApis mellifera tigustica and its role as communication cue during foragingInsectes Sociaux, 1993
- An atlas and 3-D reconstruction of the antennal lobes in the worker honey bee, Apis mellifera L. (Hymenoptera : Apidae)International Journal of Insect Morphology and Embryology, 1989
- Odor and molecular vibration: Neural coding of olfactory informationJournal of Theoretical Biology, 1977
- Stereochemical and Vibrational Theories of OdourNature, 1971