PMID: 12770369May 29, 2003Paper

Haemolymph sugars and the control of the proventriculus in the honey bee Apis mellifera

Journal of Insect Physiology
Flavio Roces, Jasmina Blatt

Abstract

Crop emptying and rectal filling rates were investigated in bees trained to collect defined amounts of sucrose solution. Crop emptying rates strongly depended on the sucrose concentration of the collected solution. There was a close match between the energy expenditure of the bees and the amount of sucrose transported through the proventriculus, irrespective of the fluid dilution. Results indicated that the controlling variable was the amount of sucrose flowing through the proventriculus rather than the volume flow. In order to distinguish between haemolymph osmolality and haemolymph carbohydrate levels as factors controlling the activity of the proventriculus, bees were injected with either metabolizable or non-metabolizable carbohydrates. Only the injection of metabolizable carbohydrates modulated the activity of the proventriculus, indicating that the titers of metabolizable carbohydrates are involved in the feedback loop controlling crop emptying, and that haemolymph osmolality alone does not influence the activity of the proventriculus.

References

May 15, 1996·Experientia·A BeckerG Wegener

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Citations

Sep 28, 2007·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Pablo E Schilman, Flavio Roces
May 29, 2003·Journal of Insect Physiology·Jasmina Blatt, Flavio Roces
Apr 24, 2014·Protoplasma·José Eduardo SerrãoJosé Cola Zanuncio
Jun 9, 2009·Journal of Insect Physiology·Cassandra R PellerEdward M Blumenthal
Sep 7, 2011·Journal of Insect Physiology·Agustina FalibeneRoxana Josens
Sep 11, 2013·Annual Review of Genetics·Bruno Lemaitre, Irene Miguel-Aliaga
May 25, 2007·Alcohol·Janko BozicCharles I Abramson
Feb 9, 2012·Experimental Biology and Medicine·Lloyd L Anderson, Colin G Scanes
Apr 11, 2020·PloS One·Victoria Charlotte SeeburgerMartin Hasselmann
Nov 6, 2007·The Journal of Experimental Biology·Geraldine A WrightBrian H Smith
Jan 20, 2009·The Journal of Experimental Biology·Susan W Nicolson
Aug 6, 2010·Journal of Insect Physiology·Christopher Mayack, Dhruba Naug

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