Article (Scientific journals)
Identification of the Alarm Pheromone of Cowpea Aphid, and Comparison With Two Other Aphididae Species
Bayendi Loudit, Sandrine; Boullis, Antoine; Verheggen, François et al.
2018In Journal of Insect Science
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Keywords :
aphid; (E)-β-farnesene; escape; behavior
Abstract :
[en] In response to a predator attack, many Aphidinae species release an alarm pheromone, which induces dispersal behavior in other individuals within the colony. The major component of this pheromone is the sesquiterpene (E)- β-farnesene (Eβf), but variations occur between aphid species. In the present work, we collected, identified, and quantified the alarm pheromone of Aphis craccivora Koch (Hemiptera: Aphididae), before quantifying the escape behavior induced in the neighboring individuals. We compared the semiochemistry and associated behavior of alarm signaling with two other aphid species: Myzus persicae (Sulzer) (Hemiptera: Aphididae) and Aphis fabae Scopoli (Hemiptera: Aphididae). Eβf was the only volatile found for each species. M. persicae produces a higher quantity of Eβf (8.39 ± 1.19 ng per individual) than A. craccivora (6.02 ± 0.82 ng per individual) and A. fabae (2.04 ± 0.33 ng per individual). Following exposure to natural doses of synthetic Eβf (50 ng and 500 ng), A. craccivora respond more strongly than the two other Aphidinae species with 78% of the individuals initiated alarm behavior for 500 ng of Eβf.
Disciplines :
Entomology & pest control
Author, co-author :
Bayendi Loudit, Sandrine ;  Université de Liège - ULiège > Gembloux Agro-Bio Tech
Boullis, Antoine ;  Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Gestion durable des bio-agresseurs
Verheggen, François  ;  Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Gestion durable des bio-agresseurs
Francis, Frédéric  ;  Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Gestion durable des bio-agresseurs
Language :
English
Title :
Identification of the Alarm Pheromone of Cowpea Aphid, and Comparison With Two Other Aphididae Species
Publication date :
01 January 2018
Journal title :
Journal of Insect Science
eISSN :
1536-2442
Publisher :
Oxford University Press
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 11 January 2018

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