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

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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.


Enheter & grupper

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Zoologi
  • Biologiska vetenskaper
Sidor (från-till)261-271
TidskriftInsect Biochemistry and Molecular Biology
Utgåva nummer3
StatusPublished - 2004
Peer review utfördJa

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