Reversed Light Reaction of the Screening Pigment in a Compound Eye Induced by Noradrenaline

Autor:	G. Höglund, Kurt Hamdorf, Achim Juse
Rok vydání:	1987
Předmět:	Pigment Chromatography Chemistry visual_art visual_art.visual_art_medium sense organs Compound eye General Biochemistry Genetics and Molecular Biology
Zdroj:	Zeitschrift für Naturforschung C. 42:973-976
ISSN:	1865-7125 0939-5075
DOI:	10.1515/znc-1987-7-841
Popis:	Migration of the screening pigment in the compound eye of the sphingid moth Deilephila elpenor is altered by noradrenaline, as shown by microreflectometric measurements on eyes of intact moths and by transmission microscopy on preparations consisting of the screening pigment cells and dioptric structures. Local application of noradrenaline inverts the reaction of the pigment to light stimulation; light causes a contraction of the pigment instead of the normal dispersion. It is suggested that catecholamines are involved in the normal regulation of pigment migration.
Databáze:	OpenAIRE
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