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Chemical ecology of obligate pollination mutualisms: testing the 'private channel' hypothesis in the Breynia-Epicephala association.

Svensson, Glenn LU ; Okamoto, Tomoko; Kawakita, Atsushi; Goto, Ryutaro and Kato, Makoto (2010) In New Phytologist 186. p.995-1004
Abstract
New Phytologist (2010) Summary *Obligate mutualisms involving actively pollinating seed predators are among the most remarkable insect-plant relationships known, yet almost nothing is known about the chemistry of pollinator attraction in these systems. The extreme species specificity observed in these mutualisms may be maintained by specific chemical compounds through 'private channels'. Here, we tested this hypothesis using the monoecious Breynia vitis-idaea and its host-specific Epicephala pollinator as a model. *Headspace samples were collected from both male and female flowers of the host. Gas chromatography with electroantennographic detection (GC-EAD), coupled gas chromatography-mass spectrometry, and olfactometer bioassays were used... (More)
New Phytologist (2010) Summary *Obligate mutualisms involving actively pollinating seed predators are among the most remarkable insect-plant relationships known, yet almost nothing is known about the chemistry of pollinator attraction in these systems. The extreme species specificity observed in these mutualisms may be maintained by specific chemical compounds through 'private channels'. Here, we tested this hypothesis using the monoecious Breynia vitis-idaea and its host-specific Epicephala pollinator as a model. *Headspace samples were collected from both male and female flowers of the host. Gas chromatography with electroantennographic detection (GC-EAD), coupled gas chromatography-mass spectrometry, and olfactometer bioassays were used to identify the floral compounds acting as the pollinator attractant. *Male and female flowers of B. vitis-idaea produced similar sets of general floral compounds, but in different ratios, and male flowers emitted significantly more scent than female flowers. A mixture of 2-phenylethyl alcohol and 2-phenylacetonitrile, the two most abundant compounds in male flowers, was as attractive to female moths as the male flower sample, although the individual compounds were slightly less attractive when tested separately. *Data on the floral scent signals mediating obligate mutualisms involving active pollination are still very limited. We show that system-specific chemistry is not necessary for efficient host location by exclusive pollinators in these tightly coevolved mutualisms. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
New Phytologist
volume
186
pages
995 - 1004
publisher
Wiley-Blackwell
external identifiers
  • wos:000277526900020
  • scopus:77953947355
ISSN
1469-8137
DOI
10.1111/j.1469-8137.2010.03227.x
project
Chemical ecology of obligate pollination mutualisms
language
English
LU publication?
yes
id
bf4cc6fd-9789-4214-9f21-9045bd3d5bbd (old id 1581583)
date added to LUP
2010-04-12 15:48:13
date last changed
2018-05-29 09:56:51
@article{bf4cc6fd-9789-4214-9f21-9045bd3d5bbd,
  abstract     = {New Phytologist (2010) Summary *Obligate mutualisms involving actively pollinating seed predators are among the most remarkable insect-plant relationships known, yet almost nothing is known about the chemistry of pollinator attraction in these systems. The extreme species specificity observed in these mutualisms may be maintained by specific chemical compounds through 'private channels'. Here, we tested this hypothesis using the monoecious Breynia vitis-idaea and its host-specific Epicephala pollinator as a model. *Headspace samples were collected from both male and female flowers of the host. Gas chromatography with electroantennographic detection (GC-EAD), coupled gas chromatography-mass spectrometry, and olfactometer bioassays were used to identify the floral compounds acting as the pollinator attractant. *Male and female flowers of B. vitis-idaea produced similar sets of general floral compounds, but in different ratios, and male flowers emitted significantly more scent than female flowers. A mixture of 2-phenylethyl alcohol and 2-phenylacetonitrile, the two most abundant compounds in male flowers, was as attractive to female moths as the male flower sample, although the individual compounds were slightly less attractive when tested separately. *Data on the floral scent signals mediating obligate mutualisms involving active pollination are still very limited. We show that system-specific chemistry is not necessary for efficient host location by exclusive pollinators in these tightly coevolved mutualisms.},
  author       = {Svensson, Glenn and Okamoto, Tomoko and Kawakita, Atsushi and Goto, Ryutaro and Kato, Makoto},
  issn         = {1469-8137},
  language     = {eng},
  pages        = {995--1004},
  publisher    = {Wiley-Blackwell},
  series       = {New Phytologist},
  title        = {Chemical ecology of obligate pollination mutualisms: testing the 'private channel' hypothesis in the <i>Breynia-Epicephala</i> association.},
  url          = {http://dx.doi.org/10.1111/j.1469-8137.2010.03227.x},
  volume       = {186},
  year         = {2010},
}