Reference : Microorganisms from aphid honeydew attract natural enemies and tending ants
Scientific congresses and symposiums : Unpublished conference
Life sciences : Agriculture & agronomy
Life sciences : Entomology & pest control
Life sciences : Microbiology
http://hdl.handle.net/2268/112917
Microorganisms from aphid honeydew attract natural enemies and tending ants
English
Verheggen, François mailto [Université de Liège - ULg > Sciences agronomiques > Entomologie fonctionnelle et évolutive >]
Leroy, Pascal [ > > ]
Fischer, Christophe mailto [Université de Liège - ULg > Chimie et bio-industries > Analyse, qual. et risques - Labo. de Chimie analytique >]
Sabri, Ahmed mailto [Université de Liège - ULg > > Centre Wallon de biologie industrielle >]
Heuskin, Stéphanie mailto [Université de Liège - ULg > Chimie et bio-industries > Analyse, qual. et risques - Labo. de Chimie analytique >]
Thonart, Philippe mailto [Université de Liège - ULg > Département des sciences de la vie > Biochimie et microbiologie industrielles >]
Fleton, Gary [ > > ]
Detrain, Claire [ > > ]
Lognay, Georges mailto [Université de Liège - ULg > Chimie et bio-industries > Analyse, qual. et risques - Labo. de Chimie analytique >]
Haubruge, Eric mailto [Université de Liège - ULg > Services administratifs généraux > Vice-Recteur de Gembloux Agro Bio Tech >]
Feb-2012
No
Yes
International
Gordon Research Conference on Plant Volatiles
du 29 janvier au 2 février 2012
Jonathan Gershenzon
Ventura
United-States
[fr] Pucerons ; Miellat ; Bactéries
[en] Aphids are some of the most serious pests of cultivated crops worldwide, causing major yield and economic losses. Previous works have demonstrated ants and natural enemies (including ladybeetles and hoverflies) to be able to use aphid volatile chemicals to locate aphid colonies. Here, we report the first isolation of a bacterium from the pea aphid Acyrthosiphon pisum honeydew, Staphylococcus sciuri, which produces kairomones used by the aphidophagous hoverfly Episyrphus balteatus and the Asian Ladybeetle Harmonia axyridis during their search for prey colonies. Some specific semiochemicals produced by S. sciuri were identified as attractants and ovipositional stimulants. Similarly, we have shown scouts of the aphid tending ant species, Lasius niger, to orientate their foraging behaviour toward an Aphis fabae infested plant and we have demonstrated that the odours released by this aphid honeydew were attractive for ant scouts. Again, bacteria were involved in the production of these honeydew semiochemicals. Interestingly, ant scouts were also able to discriminate honeydew odour from A. fabae (usually attended by L. niger) and A. pisum (unattendedby L. niger). Comparison of the volatile and bacteria composition of both aphid species honeydew were attended.
Région wallonne : Direction générale de l'Agriculture - DGA ; Fonds de la Recherche Fondamentale Collective - FRFC
http://hdl.handle.net/2268/112917

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