Sex pheromone biosynthesis in the pine caterpillar moth, Dendrolimus punctatus (Lepidoptera : Lasiocampidae): pathways leading to Z5-monoene and 5,7-conjugated diene components

Summary, in English

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.

• Author: Cheng-Hua Zhao; R O Adlof; Christer Löfstedt
• Department/s: Department of Biology; Functional zoology; Pheromone Group
• Publishing year: 2004
• Language: English
• Pages: 261-271
• Publication/Series: Insect Biochemistry and Molecular Biology
• Volume: 34
• Issue: 3
• Links: http://dx.doi.org/10.1016/j.ibmb.2003.10.005
• Document type: Journal article
• Publisher: Elsevier
• Topic: Zoology; Biological Sciences
• Status: Published
• Project: Evolutionary mechanisms of pheromone divergence in Lepidoptera
• Research group: Pheromone Group
• ISBN/ISSN/Other: ISSN: 1879-0240