title: Electrophysiological responses of the Naupactus bipes beetle to essential oils from Piperaceae species.
abstract: Electrophysiological responses based on electroantennographic detection (GC-EAD) and electroantennography (EAG) analysis of Naupactus bipes beetles (Germar, 1824) (Coleoptera: Curculionidae: Brachycerinae) were used to test volatile oils of Piper gaudichaudianum, P. regnellii and P. hispidum. In the EAG experiments, female and male beetles showed significant EAG response to the three volatile oils of Piper species, with the females' responses slightly higher than the males'. The experiments with GC-EAD revealed that some terpenoids (namely, alpha-pinene, beta-pinene, myrcene, alpha-copaene and germacrene) present in the leaf essential oils of the Piper species are perceptible to female and male beetles.
authors.affiliation: Departamento de Ciências Moleculares da Universidade Federal Rural de Pernambuco, 52.171-900 Recife, PE, Brazil. clecio@dcm.ufrpe.br
authors.forename: Clécio S
authors.initials: CS
authors.lastname: Ramos
authors.forename: Marisi G
authors.initials: MG
authors.lastname: Soares
authors.forename: Adalberto M
authors.initials: AM
authors.lastname: da Silva
authors.forename: Luciane G
authors.initials: LG
authors.lastname: Batista-Pereira
authors.forename: Arlene G
authors.initials: AG
authors.lastname: Corrêa
authors.forename: Massuo J
authors.initials: MJ
authors.lastname: Kato
mesh_terms: D000818:Animals; D001517:Coleoptera / Q000187:drug effects*; D055724:Electrophysiological Phenomena / Q000187:drug effects; D005260:Female; D008297:Male; D009822:Oils, Volatile / Q000737:chemistry / Q000494:pharmacology*; D026321:Piperaceae / Q000737:chemistry*; D010938:Plant Oils / Q000737:chemistry / Q000494:pharmacology*; D013729:Terpenes / Q000737:chemistry / Q000494:pharmacology*
chemical_list: D009822:Oils, Volatile; D010938:Plant Oils; D013729:Terpenes