Article (Scientific journals)
Microorganisms from Aphid Honeydew Attract and Enhance the Efficacy of Natural Enemies
Leroy, Pascal; Sabri, Ahmed; Heuskin, Stéphanie et al.
2011In Nature Communications, 2
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Keywords :
honeydew; aphid; bacteria; Staphylococcus sciuri; Episyrphus balteatus; natural enemies; attraction; oviposition; semiochemicals; biological control
Abstract :
[en] Aphids are one of the most serious pests of crops worldwide, causing major yield and economic losses. To control aphids, natural enemies could be an option but their efficacy is sometimes limited by their dispersal in natural environment. Here we report the first isolation of a bacterium from the pea aphid Acyrthosiphon pisum honeydew, Staphylococcus sciuri, which acts as a kairomone enhancing the efficiency of aphid natural enemies. Our findings represent the first case of a host-associated bacterium driving prey location and ovipositional preference for the natural enemy. We show that this bacterium has a key role in tritrophic interactions because it is the direct source of volatiles used to locate prey. Some specific semiochemicals produced by S. sciuri were also identified as significant attractants and ovipositional stimulants. The use of this host-associated bacterium could certainly provide a novel approach to control aphids in field and greenhouse systems.
Disciplines :
Entomology & pest control
Author, co-author :
Leroy, Pascal ;  Université de Liège - ULiège > Sciences agronomiques > Entomologie fonctionnelle et évolutive
Sabri, Ahmed ;  Université de Liège - ULiège > Centre Wallon de biologie industrielle
Heuskin, Stéphanie ;  Université de Liège - ULiège > Chimie et bio-industries > Chimie analytique
Thonart, Philippe ;  Université de Liège - ULiège > Département des sciences de la vie > Biochimie et microbiologie industrielles
Lognay, Georges ;  Université de Liège - ULiège > Chimie et bio-industries > Chimie analytique
Verheggen, François  ;  Université de Liège - ULiège > Sciences agronomiques > Entomologie fonctionnelle et évolutive
Francis, Frédéric  ;  Université de Liège - ULiège > Sciences agronomiques > Entomologie fonctionnelle et évolutive
Brostaux, Yves  ;  Université de Liège - ULiège > Sciences agronomiques > Statistique, Inform. et Mathém. appliquée à la bioingénierie
Felton, Gary;  University of Pennsylvania - Penn
Haubruge, Eric  ;  Université de Liège - ULiège > Services administratifs généraux > Vice-Recteur de Gembloux Agro Bio Tech
Language :
English
Title :
Microorganisms from Aphid Honeydew Attract and Enhance the Efficacy of Natural Enemies
Publication date :
14 June 2011
Journal title :
Nature Communications
eISSN :
2041-1723
Publisher :
Nature Pub.lishing Group, London, United Kingdom
Volume :
2
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
Solaphid
Funders :
Région wallonne [BE]
Available on ORBi :
since 21 June 2011

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