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Evidence for (E)-pityol as an aggregation pheromone of Pityophthorus pubescens (Coleoptera: Curculionidae: Scolytinae)

Published online by Cambridge University Press:  07 September 2012

Sergio López ,
Carmen Quero ,
Juan Carlos Iturrondobeitia ,
Ángel Guerrero  and
Arturo Goldarazena
Sergio López
Affiliation:
Department of Plant Production and Protection, Neiker-Tecnalia (Basque Institute of Agricultural Research and Development), Arkaute, 46. E-01080 Vitoria, Spain
Carmen Quero
Affiliation:
Department of Biological Chemistry and Molecular Modelling, Institut de Quimica Avançada de Catalunya, Consejo Superior de Investigaciones Científicas, Jordi Girona 18-26. E-08034, Barcelona, Spain
Juan Carlos Iturrondobeitia
Affiliation:
Department of Zoology and Animal Cell Biology, University of the Basque Country, Sarriena s/n. E-48940, Leioa, Spain
Ángel Guerrero
Affiliation:
Department of Biological Chemistry and Molecular Modelling, Institut de Quimica Avançada de Catalunya, Consejo Superior de Investigaciones Científicas, Jordi Girona 18-26. E-08034, Barcelona, Spain
Arturo Goldarazena*
Affiliation:
Department of Plant Production and Protection, Neiker-Tecnalia (Basque Institute of Agricultural Research and Development), Arkaute, 46. E-01080 Vitoria, Spain
*
1Corresponding author (e-mail: [email protected]).
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Abstract

We present evidence favoring the use of (E)-pityol as an aggregation pheromone in Pityophthorus pubescens (Marsham). (E)-Pityol was detected in effluvia of male and female P. pubescens, and antennae of both sexes responded to (E)-(+)-pityol in electroantennogram assays. In two-choice olfactometer tests, males significantly preferred (E)-(+)-pityol and (E)-(±)-pityol to blank controls at doses of 1, 10, and 100ng, whereas females only showed a preference for (E)-pityol at the 1ng dose.

Résumé

Dans ce travail, nous présentons la preuve de l'utilisation de (E)-pityol comme une phéromone d'agrégation par Pityophthorus pubescens (Marsham). (E)-Pityol a été détecté dans les volatiles des mâles et des femelles de P. pubescens et les antennes des deux sexes ont répondu au (E)-(+)-pityol lors des essais électrophysiologiques. Dans un olfactomètre à deux choix, les mâles ont montré une préférence significative pour (E)-(+)- pityol et (E)-(±)-pityol aux doses de 1, 10, et 100ng par rapport au contrôle, alors que les femelles seulement ont montré une préférence pour (E)-pityol à la dose de 1ng.

Type
Research Article
Information
The Canadian Entomologist , Volume 143 , Issue 5 , September 2011 , pp. 447 - 454
Copyright
Copyright © Entomological Society of Canada 2011

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