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Fatty acids from pool lipids as possible precursors of the male marking pheromone in bumblebees
E. Kofroňová, A. Nekola, J. Cvačka, J. Kindl, I. Valterová,
Language English Country Switzerland
Document type Journal Article, Research Support, Non-U.S. Gov't
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- MeSH
- Species Specificity MeSH
- Pheromones chemistry secretion MeSH
- Lipids chemistry MeSH
- Fatty Acids chemistry MeSH
- Sex Attractants chemistry MeSH
- Bees chemistry physiology MeSH
- Animals MeSH
- Check Tag
- Male MeSH
- Animals MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
Triacylglycerols (TGs) stored in the fat bodies of bumblebee males have a species-specific composition. The striking structural similarities between TG fatty acids (FAs) and components of the male marking pheromone in certain species led to the hypothesis that FAs may serve as precursors in pheromone biosynthesis. Here, we analysed TGs from B. ruderatus, B. bohemicus, and B. campestris. Nonadec-9-ene and icos-15-en-1-ol are the main components of B. ruderatus labial gland secretion, forming up to 92% of the gland extract. The corresponding icos-11-enic and icos-15-enic acids were found in TGs at levels higher than usual for bumblebee species. We found similar relationships in B. campestris and B. bohemicus. These results suggest that FAs might be precursors of aliphatic compounds in the male pheromones. Furthermore, we report for the first time the pheromone structure of B. ruderatus males.
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