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Electrophysiological and behavioral responses to chocolate volatiles in both sexes of the pyralid moths Ephestia cautella and Plodia interpunctella

Olsson, Christian LU ; Anderbrant, Olle LU ; Löfstedt, Christer LU ; Borg-Karlsson, AK and Liblikas, I (2005) In Journal of Chemical Ecology 31(12). p.2947-2961
Abstract
Volatiles from chocolate mediate upwind flight behavior in Ephestia cautella and Plodia interpunctella. We used gas chromatography with electroantennographic detection and found 12 active compounds derived from three different chocolate types, i.e., plain, nut-containing, and rum-flavored. Eight of the compounds were identified with mass spectrometry, and the activity of three compounds, ethyl vanillin, nonanal, and phenylacetaldehyde (PAA), was subsequently confirmed in both electrophysiological and behavioral assays. In the electroantennogram experiment, PAA and nonanal were consistently eliciting responses in both species and sexes. Ethyl vanillin was active in males of both species, and also in P. interpunctella females.... (More)
Volatiles from chocolate mediate upwind flight behavior in Ephestia cautella and Plodia interpunctella. We used gas chromatography with electroantennographic detection and found 12 active compounds derived from three different chocolate types, i.e., plain, nut-containing, and rum-flavored. Eight of the compounds were identified with mass spectrometry, and the activity of three compounds, ethyl vanillin, nonanal, and phenylacetaldehyde (PAA), was subsequently confirmed in both electrophysiological and behavioral assays. In the electroantennogram experiment, PAA and nonanal were consistently eliciting responses in both species and sexes. Ethyl vanillin was active in males of both species, and also in P. interpunctella females. E. cautella females showed no antennal activity in response to ethyl vanillin. All three volatiles were attractive to E. cautella males and P. interpunctella females in a flight tunnel. E. cautella females were significantly attracted only to ethyl vanillin. P. interpunctella males were attracted to PAA. Ethyl vanillin is a novel insect attractant, whereas both nonanal and phenylacetaldehyde mediate behavior in many insect species. A final experiment revealed that a blend of the three volatiles was required to induce landing in the flight tunnel bioassay, and that the landing rate was dependent on dose. The three-component blend attracted both sexes of P. interpunctella and females of E. cautella, whereas E. cautella males were not attracted. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Chemical Ecology
volume
31
issue
12
pages
2947 - 2961
publisher
Springer
external identifiers
  • wos:000234115600014
  • pmid:16365716
  • scopus:29244469381
ISSN
1573-1561
DOI
10.1007/s10886-005-8406-z
project
Pheromones and kairomones of stored product pests
language
English
LU publication?
yes
id
ef6b9883-8562-45cb-9b1c-6a095258bf64 (old id 149993)
date added to LUP
2007-06-27 11:23:36
date last changed
2017-10-29 03:25:50
@article{ef6b9883-8562-45cb-9b1c-6a095258bf64,
  abstract     = {Volatiles from chocolate mediate upwind flight behavior in <i>Ephestia cautella</i> and <i>Plodia interpunctella</i>. We used gas chromatography with electroantennographic detection and found 12 active compounds derived from three different chocolate types, i.e., plain, nut-containing, and rum-flavored. Eight of the compounds were identified with mass spectrometry, and the activity of three compounds, ethyl vanillin, nonanal, and phenylacetaldehyde (PAA), was subsequently confirmed in both electrophysiological and behavioral assays. In the electroantennogram experiment, PAA and nonanal were consistently eliciting responses in both species and sexes. Ethyl vanillin was active in males of both species, and also in P. interpunctella females. E. cautella females showed no antennal activity in response to ethyl vanillin. All three volatiles were attractive to E. cautella males and P. interpunctella females in a flight tunnel. E. cautella females were significantly attracted only to ethyl vanillin. P. interpunctella males were attracted to PAA. Ethyl vanillin is a novel insect attractant, whereas both nonanal and phenylacetaldehyde mediate behavior in many insect species. A final experiment revealed that a blend of the three volatiles was required to induce landing in the flight tunnel bioassay, and that the landing rate was dependent on dose. The three-component blend attracted both sexes of P. interpunctella and females of E. cautella, whereas E. cautella males were not attracted.},
  author       = {Olsson, Christian and Anderbrant, Olle and Löfstedt, Christer and Borg-Karlsson, AK and Liblikas, I},
  issn         = {1573-1561},
  language     = {eng},
  number       = {12},
  pages        = {2947--2961},
  publisher    = {Springer},
  series       = {Journal of Chemical Ecology},
  title        = {Electrophysiological and behavioral responses to chocolate volatiles in both sexes of the pyralid moths <i>Ephestia cautella</i> and <i>Plodia interpunctella</i>},
  url          = {http://dx.doi.org/10.1007/s10886-005-8406-z},
  volume       = {31},
  year         = {2005},
}