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Changes in weight of pharyngeal gland and haemolymph titres of juvenile hormone, protein and vitellogenin in worker honey bees






Journal of Insect Physiology 28(1): 61-68

Changes in weight of pharyngeal gland and haemolymph titres of juvenile hormone, protein and vitellogenin in worker honey bees

Physiological changes were studied in bees of different ages at different seasons. The level of juvenile hormone (JH) increased continuously in ageing summer bees, but was always low in bees at the beginning of winter. At the end of winter it rose to a level similar to that in summer bees 24-40 days old. In bees induced experimentally to live longer than normal in summer, the JH level did not rise.


Accession: 001053041



Related references

Fluri, P.; Luscher, M.; Wille, H.; Gerig, L., 1982: Changes in weight of the pharyngeal gland and haemolymph titres of juvenile hormone, protein and vitellogenin in worker honey bees. Four physiological parameters (hemolymph-juvenile hormone titer, protein concentration, vitellogenin concentration and pharyngeal gland dry weight) were examined in the following categories of queenright adult worker bees: summer bees 1-40 days ol...

Fluri P.; Luescher M.; Wille H.; Gerig L., 1982: Changes in weight of the pharyngeal gland and hemolymph titers of juvenile hormone protein and vitellogenin in worker honey bees. Four physiological parameters (hemolymph-juvenile hormone titer, protein concentration, vitellogenin concentration and pharyngeal gland dry weight) were examined in the following categories of queenright adult worker bees: summer bees 1-40 days ol...

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