Asymmetrical generalisation between pheromonal and floral odours in appetitive olfactory conditioning of the honey bee (Apis mellifera L.)

被引：47
作者：
Sandoz J. [1 ]
Pham-Delègue M. [1 ]
Renou M. [2 ]
Wadhams L. [3 ]
机构：
[1] Laboratoire de Neurobiologie Comparée des Invertébrés, INRA, 91440 Bures-sur-Yvette, BP 23, La Guyonnerie
[2] Station de Phytopharmacie, INRA, 78026 Versailles Cedex, Route de St. Cyr
[3] Department of Biological and Ecological Chemistry, Rothamsted Experimental Station, Institute for Arable Crops Research, Harpenden
来源：
Journal of Comparative Physiology A | 2001年 / 187卷 / 7期
基金：
英国生物技术与生命科学研究理事会;
关键词：
Alarm pheromones; Electroantennogram; Generalisation; Olfactory learning; Proboscis extension response conditioning;
D O I：
10.1007/s003590100228
中图分类号：
学科分类号：
摘要：
The capacity to generalise between similar but not identical olfactory stimuli is crucial for honey bees, allowing them to find rewarding food sources with varying volatile emissions. We studied bees' generalisation behaviour with odours having different biological values: typical floral odours or alarm compounds. Bees' behavioural and peripheral electrophysiological responses were investigated using a combined proboscis extension response conditioning-electroantennogram assay. Bees were conditioned to pure linalool (floral) or to pure isoamyl acetate (alarm) and were tested with different concentrations of both compounds. Electrophysiological responses were not influenced by conditioning, suggesting that the learning of individual compounds does not rely on modulations of peripheral sensitivity. Behaviourally, generalisation responses of bees conditioned to the alarm compound were much higher than those of bees conditioned to the floral odour. We further demonstrated such asymmetrical generalisation between alarm and floral odours by using differential conditioning procedures. Conditioning to alarm compounds (isoamyl acetate or 2-heptanone) consistently induced more generalisation than conditioning to floral compounds (linalool or phenylacetaldehyde). Interestingly, generalisation between the two alarm compounds, which are otherwise chemically different, was extremely high. These results are discussed in relation to the neural representation of compounds with different biological significance for bees.
引用
收藏
页码：559 / 568
页数：9
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