PMID: 12769943May 29, 2003Paper

Developmental changes in dopamine levels in larvae of the fly Chymomyza costata: comparison between wild-type and mutant-nondiapause strains

Journal of Insect Physiology
Y HayakawaV Kostal

Abstract

Dopamine and two related catecholamines, L-3,4-dihydroxyphenylalanine (DOPA) and N-acetyl dopamine (NADA), were analyzed in whole body and tissue samples taken throughout late larval development of the drosophilid fly Chymomyza costata, which enters facultative diapause as a mature 3rd instar larva in response to short photophase. Wild-type (W) and mutant-nondiapause (M) strains reared under diapause inducing (d) and preventing (nd) photophases were compared. Developmental changes in the whole body of dopamine levels showed some general features irrespective of fly strain and rearing conditions: sharp major peaks during moult from second to third instar larva and during pupariation; lower minor peaks around the middle of both 2nd and 3rd instars. Significant differences between the strains and conditions were also found: dopamine levels were lower throughout the 2nd instar and during the 2nd to 3rd instar moult of mutant strain larvae (M/d) as compared to wild-type larvae (W/nd and W/d); while the late 2nd and late 3rd instar larvae destined to diapause (W/d) maintained relatively high dopamine concentrations, their counterparts destined to continuous development (W/nd and M/d) significantly decreased dopamine levels prior to t...Continue Reading

References

Feb 15, 1988·The Journal of Comparative Neurology·V Budnik, K White
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Dec 15, 1972·Comparative Biochemistry and Physiology. B, Comparative Biochemistry·S A DewhurstR E McCaman
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Apr 15, 1997·Proceedings of the National Academy of Sciences of the United States of America·C YellmanJ Hirsh

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Citations

May 29, 2003·Journal of Insect Physiology·V KostalY Hayakawa
Nov 19, 2013·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·Daniela ChvalovaMagdalena Hodkova
Aug 19, 2008·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·Radomír SochaRostislav Zemek
Oct 24, 2019·Proceedings. Biological Sciences·Lauren E Des MarteauxVladimír Koštál

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