Journal of Chemical Ecology

, Volume 26, Issue 6, pp 1433–1445

Identification of Volatile Potato Sesquiterpenoids and Their Olfactory Detection by the Two-spotted Stinkbug Perillus bioculatus

  • Bernhard Weissbecker
  • Joop J. A. Van Loon
  • Maarten A. Posthumus
  • Harro J. Bouwmeester
  • Marcel Dicke
Article

DOI: 10.1023/A:1005535708866

Cite this article as:
Weissbecker, B., Van Loon, J.J.A., Posthumus, M.A. et al. J Chem Ecol (2000) 26: 1433. doi:10.1023/A:1005535708866
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Abstract

The predaceous stinkbug Perillus bioculatus is attracted towards volatiles emitted by damaged potato plants. Whereas mechanically damaged plants lost attractiveness 1 h after damage was inflicted, attraction was long-lasting when the plants were damaged by Colorado potato beetles Leptinotarsa decemlineata, a prey of P. bioculatus. A range of sesquiterpenoids was previously shown to be induced upon beetle damage. In order to evaluate the potential role of sesquiterpenoids in the attraction response, volatiles from damaged potato plants were collected and analyzed with GC-MS and GC-EAG. The antennae of P. bioculatus responded to β-caryophyllene, α-humulene, (E)-β-farnesene, (−)-germacrene D, and germacrene D-4-ol. Two sesquiterpenes that coeluted, α-zingiberene and bicyclogermacrene, together also elicited olfactory responses of P. bioculatus, whereas the individual compounds did not. The response of P. bioculatus to a variety of sesquiterpenes at low dosages suggests a role for these compounds in prey detection of this stinkbug.

HemipteraPentatomidaePerillus bioculatuspredator electroantennographyEAGGC-EAGtritrophic interactionssesquiterpenesherbivore-induced plant volatiles

Copyright information

© Plenum Publishing Corporation 2000

Authors and Affiliations

  • Bernhard Weissbecker
    • 1
  • Joop J. A. Van Loon
    • 1
  • Maarten A. Posthumus
    • 2
  • Harro J. Bouwmeester
    • 3
  • Marcel Dicke
    • 1
  1. 1.Laboratory of EntomologyWageningen UniversityWageningenThe Netherlands
  2. 2.Laboratory of Organic ChemistryWageningen UniversityWageningenThe Netherlands
  3. 3.Institute for Agrobiology and Soil Fertility (AB)Wageningen University and Research CentreWageningenThe Netherlands