Endocrinologica

Experientia

, Volume 33, Issue 9, pp 1240-1241

First online:

Juvenile hormone, vitellogenin and haemocyte composition in winter worker honeybees (Apis mellifera)

  • P. FluriAffiliated withDivision of Animal Physiology, Zoological Institute of the University of BernApicultural Section, Federal Dairy Research Station
  • , H. WilleAffiliated withDivision of Animal Physiology, Zoological Institute of the University of BernApicultural Section, Federal Dairy Research Station
  • , L. GerigAffiliated withDivision of Animal Physiology, Zoological Institute of the University of BernApicultural Section, Federal Dairy Research Station
  • , M. LüscherAffiliated withDivision of Animal Physiology, Zoological Institute of the University of BernApicultural Section, Federal Dairy Research Station

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Summary

The haemolymph of winter bees (long life span) in contrast to that of summer bees (short life span) has a low juvenile hormone titre and a high protein titre. It is suggested that the winter bee physiology may be brought about by low JH-production.