Abstract
The aims of this study were to investigate how antennal olfactory cells of tsetse (Diptera: Glossinidae) code odour quality and how they are able to discriminate between attractive and repellent odours. For Glossina pallidipes Austen, a survey is presented of the cells' responses to attractive (1-octen-3-ol, acetone, 3-methylphenol, carbon dioxide) and repellent stimuli (2-methoxyphenol, acetophenone, lactic acid, naphthalene). In addition, the responses of these cells to binary mixtures and the dose-response curves of 1-octen-3-ol, 3-methylphenol, 2-methoxyphenol and acetophenone are presented. A minority of the cells responded to one attractant or repellent only, whereas the vast majority were excited by more than one of the attractive and/or repellent stimuli. It is proposed that the peripheral olfactory cells of tsetse discriminate between different compounds via an across-fibre pattern coding, in which the cells that specifically code for attractants or repellents may play a substantial role in composing a unique excitation pattern that informs the central nervous system about the specificity of odours.
Original language | English |
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Pages (from-to) | 386-392 |
Number of pages | 7 |
Journal | Medical and Veterinary Entomology |
Volume | 13 |
Issue number | 4 |
Publication status | Published - Oct-1999 |
Keywords
- Glossina pallidipes
- across-fibre pattern coding
- antennal olfactory receptor cells
- attractant
- host odour
- repellent
- tsetse
- Africa
- GLOSSINA-M-MORSITANS
- FLIES DIPTERA
- CATTLE URINE
- 1-OCTEN-3-OL
- COMPONENTS
- RECEPTORS
- FIELD
- ODOR
- IDENTIFICATION
- SUPPRESSION