Natural Polyesters: Dufour's Gland Macrocyclic Lactones Form Brood Cell Laminesters in Colletes Bees

@article{Hefetz1979NaturalPD,
  title={Natural Polyesters: Dufour's Gland Macrocyclic Lactones Form Brood Cell Laminesters in Colletes Bees},
  author={Abraham Hefetz and Henry M. Fales and Suzanne W. T. Batra},
  journal={Science},
  year={1979},
  volume={204},
  pages={415 - 417}
}
Bees in the genus Colletes make their brood cells in the ground and coat them with a highly resistant, waterproof, transparent membrane. This membrane is a polyester constructed mainly from 18-hydroxyoctadecanoic acid and 20-hydroxy-eicosanoic acid, which are stored as their corresponding lactones in the Dufour's gland of the bee. When lining the cells, the bee secretes its glandular content, and the membrane is apparently a product of polycondensation reaction of its contents. This appears to… Expand
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The macrocyclic lactones octadecanolide, eicosanolide and docosanolides were identified in nearly all species, and octadecenolide was detected in the secretion of at least one species. Expand
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A chloroform-soluble, neutral wax was isolated from the leaves of Colorado spruce, collected during fall and winter months. The wax was found to consist of sabinic, 14-hydroxytetradecanoic, andExpand
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Nest-making behavior by this nomiine bee was generally similar to that of halictine bees, but nests in the observation chambers were deeper than those in nature and had fewer cells. Expand
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Uinalool was identified as the main component of the mandibular gland secretion in females and males of four species ofColletes bees, and was shown to be the dominant volatile compound in the same gland in male C. cunicularius and female C. floralis. Expand
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methylene chloride. The extracts were analyzed on an LKB-9000 combined GC-MS with a 25 m by 0.2 mm capillary SE-30 column. The chromatogram was programmed from 2000 to 250TC at 1OC per minute
  • Bees were collected at their nesting site or on flowers in the vicinity of the nest
  • 1979
Am
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  • 1978
We thank one of the referees for bringing to our attention the recent paper by
  • Chem. Ecol
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