Reference : Aphid-ant mutualism: how honeydew sugars influence the behaviour of ant scouts
Scientific journals : Article
Life sciences : Entomology & pest control
Life sciences : Environmental sciences & ecology
http://hdl.handle.net/2268/63162
Aphid-ant mutualism: how honeydew sugars influence the behaviour of ant scouts
English
Detrain, Claire [Université de Liège - ULg > Sciences agronomiques > Entomologie fonctionnelle et évolutive >]
Verheggen, François mailto [Université de Liège - ULg > Chimie et bio-industries > Chimie biologique industrielle >]
Diez, Lise [Université de Liège - ULg > Services administratifs généraux > Vice-Recteur de Gembloux Agro Bio Tech - Entomologie fonctionnelle et évolutive >]
Wathelet, Bernard mailto [> > > >]
Haubruge, Eric mailto [> > > >]
2010
Physiological Entomology
Blackwell Publishing
35
2
168-174
Yes (verified by ORBi)
International
0307-6962
[en] Ant ; aphids ; Aphis fabae ; decision-making ; feeding preference ; honeydew sugars ; Lasius niger ; trail recruitment
[en] Honeydew is the keystone on which ant-aphid mutualism is built. The present study investigates how each sugar identified in Aphis fabae Scopoli honeydew acts upon the feeding and the laying of a recruitment trail by scouts of the aphid-tending ant Lasius niger Linnaeus, and thus may enhance collective exploitation by the ant mutualists. The feeding preferences shown by L. niger for honeydew sugars are: melezitose = sucrose = raffinose > glucose = fructose > maltose = trehalose = melibiose = xylose. Although feeding is a prerequisite to the launching of trail recruitment, the reverse is not necessarily true: not all ingested sugar solutions elicit a trail-laying behaviour among fed scouts. Trail mark laying is only triggered by raffinose, sucrose or melezitose, with the latter sugar being specific to honeydew. By comparing gustatory and recruitment responses of ant foragers to sugar food sources, the present study clarifies the role of honeydew composition both as a source of energy and as a mediator in ant-aphid interactions. Lasius niger feeding preferences can be related to the physiological suitability of each sugar (i.e. their detection by gustatory receptors as well as their ability to be digested and converted into energy). Regarding recruitment, the aphid-synthesized oligosaccharide (melezitose) could be used by ant scouts as a cue indicative of a long-lasting productive resource that is worthy of collective exploitation and defence against competitors or aphid predators.
Fonds de la Recherche Fondamentale Collective d'Initiative des Chercheurs - FRFC
Mutualisme et vie sociale: l'interaction puceron-fourmi
http://hdl.handle.net/2268/63162

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