PMID: 12770239May 29, 2003Paper

Metabolic changes in the African fruit beetle, Pachnoda sinuata, during starvation

Journal of Insect Physiology
Lutz Auerswald, Gerd Gäde

Abstract

Specimens of the fruit beetle Pachnoda sinuata were starved for up to 30 days. The weight of the beetles declined consistently throughout the starvation period. Concentrations of carbohydrates and alanine in flight muscles, fat body and haemolymph decreased rapidly after onset of starvation, while the concentration of proline remained high. Whereas the lipid concentrations in the haemolymph did not change significantly upon starvation, the lipid content in flight muscles and fat body decreased significantly.Beetles that had been starved for 14 days responded to injection of Mem-CC, the endogenous neuropeptide from its corpora cardiaca, with hyperprolinaemia and a decrease in the alanine level, but no such effect was monitored after prolonged starvation of 28 days. Regardless of the period of starvation, Mem-CC injection could not cause hypertrehalosaemia or hyperlipaemia, although carbohydrates were increased in fed beetles after injection.Flight ability of beetles that had been starved for 15 or 30 days was apparently not impaired. During such periods, beetles used proline exclusively as fuel for flight as evidenced by the increase in the level of alanine in the haemolymph and decrease of the level of proline; the concentratio...Continue Reading

References

Jan 1, 1979·General and Comparative Endocrinology·P Cheeseman, G J Goldsworthy
Jan 1, 1991·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·R Ziegler
Feb 21, 1997·Journal of Insect Physiology·K Crailsheim, U Panzenböck

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Citations

May 29, 2003·Journal of Insect Physiology·S J. Crafts-Brandner
May 29, 2003·Journal of Insect Physiology·M T MarronA G Gibbs
May 9, 2002·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·Gerd Gäde, Lutz Auerswald
Oct 1, 2009·Integrative and Comparative Biology·Matthias W Lorenz, Gerd Gäde
Dec 25, 2012·Physiology & Behavior·Seyed Mohammad TabadkaniJamasb Nozari
Mar 9, 2018·The Journal of Experimental Biology·Brent J Sinclair, Katie E Marshall
Mar 21, 2019·Frontiers in Physiology·Dao-Wei ZhangYan-Long Tang
Nov 10, 2020·Science China. Life Sciences·Xiaohong ZhengGuangcun He
Mar 9, 2020·Environmental Pollution·Aneta K UrbanekAleksandra M Mirończuk

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