Linalool and lilac aldehyde/alcohol in flower scents. Electrophysiological detection of lilac aldehyde stereoisomers by a moth.
The stereoisomers of linalool and lilac aldehyde/alcohol were determined in the flower scent of 15 plant species using enantioselective multidimensional gas chromatography/mass spectrometry (enantio-MDGC/MS). Both linalool and all 8 stereoisomers of lilac alcohol and lilac aldehyde were detected, and there was a species-specific pattern. Single stereoisomers were collected by micropreparative-enantio-MDGC and were electrophysiologically tested on antennae of the noctuid moth Hadena bicruris, a species known to rely on lilac aldehyde for finding its host plant. The moth responded to all 8 stereoisomers, though only four stereoisomers were found in the scent of its host plant. The moth was less sensitive to some isomers than to others.
Department of Plant Systematics, University of Bayreuth, Universitätsstrasse 30, D-95440 Bayreuth, Germany. stefan.doetterl@uni-bayreuth.de
Stefan
S
Dötterl
Dirk
D
Burkhardt
Bernhard
B
Weissbecker
Andreas
A
Jürgens
Stefan
S
Schütz
Armin
A
Mosandl
D000080462:Acyclic Monoterpenes; D000438:Alcohols / Q000032:analysis*; D000447:Aldehydes / Q000032:analysis*; D000818:Animals; D035264:Flowers / Q000737:chemistry; D008401:Gas Chromatography-Mass Spectrometry; D039821:Monoterpenes / Q000032:analysis*; D009036:Moths / Q000502:physiology*; D013237:Stereoisomerism; D031662:Syringa / Q000737:chemistry*
D000080462:Acyclic Monoterpenes; D000438:Alcohols; D000447:Aldehydes; D039821:Monoterpenes; C018584:linalool