Sex pheromone biosynthesis in the pine caterpillar moth, <i>Dendrolimus punctatus</i> (Lepidoptera : Lasiocampidae): pathways leading to Z5-monoene and 5,7-conjugated diene components
Zhao, Cheng-Hua; Adlof, R O; Löfstedt, Christer (2004). Sex pheromone biosynthesis in the pine caterpillar moth, <i>Dendrolimus punctatus</i> (Lepidoptera : Lasiocampidae): pathways leading to Z5-monoene and 5,7-conjugated diene components. Insect Biochemistry and Molecular Biology, 34, (3), 261 - 271
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Published
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English
Authors:
Zhao, Cheng-Hua
;
Adlof, R O
;
Löfstedt, Christer
Department:
Department of Biology
Functional zoology
Pheromone Group
Project:
Evolutionary mechanisms of pheromone divergence in Lepidoptera
Research Group:
Pheromone Group
Abstract:
Biosynthesis of the sex pheromone components (Z)-5-dodecenol and (Z,E)-5,7-dodecadienol in Dendrolimus punctatus was studied by topical application of deuterium-labeled fatty acids to pheromone glands and subsequent analysis of fatty acyl groups and pheromone components by gas chromatography-mass spectrometry. Our studies suggest that both (Z)-5-dodecenol and (Z,E)-5,7-dodecadienol can be biosynthetically derived from chain elongation of palmitate to stearate in the gland, and its subsequent All desaturation to produce (Z)-11-octadecenoate. After three cycles of 2-carbon chain-shortening, the pheromone glands produce (Z)-5-dodecenoate, which is then converted to (Z)-5-dodecenol by reduction. A second Delta11 desaturation of (Z)-9-hexadecenoate produces (Z, E)-9,11-hexadecadienoate, which is then chain shortened in two cycles of beta-oxidation and finally converted to (ZE)-5,7-dodecadienol by reduction.
Keywords:
Zoology ;
Biological Sciences
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