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

Författare:
Publiceringsår: 2004
Språk: Engelska
Sidor: 261-271
Publikation/Tidskrift/Serie: Insect Biochemistry and Molecular Biology
Volym: 34
Nummer: 3
Dokumenttyp: Artikel
Förlag: Elsevier

Sammanfattning

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.

Disputation

Nyckelord

  • Biology and Life Sciences

Övriga

Published
  • Evolutionary mechanisms of pheromone divergence in Lepidoptera
Yes
  • Pheromone Group
  • ISSN: 0965-1748

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