Effect of Neurotransmitters on Movement of Screening Pigment in Insect Superposition Eyes

Autor:	G. Höglund, Kurt Hamdorf, Peter Stus̆ek, Achim Juse
Rok vydání:	1989
Předmět:	media_common.quotation_subject Anatomy Compound eye Octopamine (drug) Insect Biology General Biochemistry Genetics and Molecular Biology Pigment chemistry.chemical_compound chemistry visual_art Pigment migration visual_art.visual_art_medium Biophysics sense organs media_common
Zdroj:	Zeitschrift für Naturforschung C. 44:992-998
ISSN:	1865-7125 0939-5075
DOI:	10.1515/znc-1989-11-1220
Popis:	Com pound Eye, Pigment Migration, Adrenaline, Octopamine, Noradrenaline The light-induced expansion of the screening pigment in the com pound eyes of the sphingid moth Deilephila and the owlfly Ascalaphus is counteracted by local application of noradrenaline or octopamine. Ata critical concentration, similar for both drugs, the expanding effect caused by a light stimulus is completely neutralized, and at higher drug concentrations light stimulation induces a contraction of the screening pigment. The contracting effect of noradrenaline and octopamine is counteracted by adrenaline. None of the other putative neuroactive substances tested (acetylcholine, GABA , histamine, melatonin, serotonin and taurine) has a com parable effect on light-induced pigment movement. It is hypothesized that pigment migration is controlled by a system of antagonistically acting catecholamines, similar to the noradrenaline/adrenaline system present in vertebrates.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3f2b2291b2d37d1e0ec351d7d9e214a8 https://doi.org/10.1515/znc-1989-11-1220 Zobrazit plný text záznamu