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Detalhes da Produção
| Tipo | Artigo Publicado |
| Grupo | Produção Bibliográfica |
| Descrição | Blassioli-Moraes, M. C. ; LAUMANN, R. A. ; Oliveira, M. W. M. ; Woodcock, C. M. ; Mayon, P. ; Hooper, A. ; Pickett, J. A. ; Birkett, M. A. ; Borges, M.. Sex Pheromone Communication in Two Sympatric Neotropical Stink Bug Species Chinavia ubica and Chinavia impicticornis. Journal of Chemical Ecology, v. 38, p. 836-845, 2012. |
| Autor | Raúl Alberto Laumann |
| Ano | 2012 |
Informações Complementares
| Ano do artigo | 2012 |
| Descricão e Informacões Adicionais | Abstract Chinavia and Nezara spp. stink bugs (Heteroptera: Pentatomidae) include over100 species, with highest diversity in Afrotropical and Neotropical regions. Species thus far studied in these genera utilize trans-(Z)-(4S)bisabolene epoxide (BE) and cis-(Z)-(4S)-BE as major sex pheromone components, with species specificity ensured by different ratios of the two compounds. Gas chromatography (GC) and coupled GC-mass spectrometry (GC-MS) analyses ofavolatilesfromC.ubicamalesrevealedthepresenceoftwo BEisomersinapproximatelya90:10ratio,whichwereshown by microprobe 1HNMRtobecis-(Z)-BE and trans-(Z)-BE isomers, respectively. Analyses of volatiles from C. impicticornismalessuggestedthepresenceofasingleisomer,trans(Z)-BE,inhighpurity(>90%).Theabsoluteconfigurationsof the isomers produced by C. ubica and C. impicticornis were determined using chiral GC analysis (β-DEX column). Oxidative microchemistry of synthetic standards of cis-(Z)(4S)-BEandtrans-(Z)-(4R)-BE,andvolatilesfrommaleofC. ubica,revealedtheabsolutestereochemistryofthecis-(Z)-BE to be (1R,2S,4S)[cis-(Z)-(4S) for short]. Similarly, analyses of trans-(Z)-(4S)-BE and cis-(Z)-(4R)-BE standards, and volatiles from males of C. ubica and C. impicticornis,revealed the absolute stereochemistry of the trans-(Z)-BE to be (1S,2R,4S)[trans-(Z)-(4S)forshort].Olfactometerbioassays with synthetic BEs confirmed attraction of female C. ubica and C. impicticornis to conspecific synthetic pheromone, but not to heterospecific synthetic pheromone. Chinavia impicticornis appeared not to discriminate behaviorally between the conspecific pheromone and its enantiomer. Coupled GCelectroantennography with antennae from females suggested thatC. ubica and C. impicticornis possess olfactory receptors forbothcis-(Z)-(4S)-BEandtrans-(Z)-(4S)-BE.Theresultsin this study confirm that C. ubica and C. impicticornis,asfor other Chinavia and Nezara spp., utilize cis-(Z)-(4S)-BE and trans-(Z)-(4S)-BE as sex pherom |
| Divulgacão Científica | NAO |
| DOI | 10.1007/s10886-012-0142-6 |
| Homepage do Trabalho | [doi:10.1007/s10886-012-0142-6] |
| Idioma | Inglês |
| ISSN | 00980331 |
| Meio de Divulgação | MEIO_DIGITAL |
| Natureza | COMPLETO |
| Página Final | 845 |
| Página Inicial | 836 |
| Relevância | NAO |
| Série | 7 |
| Título do Artigo | Sex Pheromone Communication in Two Sympatric Neotropical Stink Bug Species Chinavia ubica and Chinavia impicticornis |
| Título do Períodico ou Revista | Journal of Chemical Ecology |
| Volume | 38 |