Calcium transients in the rhabdomeres of dark- and light-adapted fly photoreceptor cells

J Oberwinkler*, DG Stavenga

*Bijbehorende auteur voor dit werk

Onderzoeksoutput: ArticleAcademicpeer review

50 Citaten (Scopus)
208 Downloads (Pure)


The light response of fly photoreceptor cells is modulated by changes in free Ca2+ concentration. Fly phototransduction and most processes regulating it take place in or very close to the rhabdomere. We therefore measured the kinetics and the absolute values of the free Ca2+ concentration in the rhabdomere of fly photoreceptor cells in vivo by making use of the natural optics of the fly's eye. We show that Ca2+ flowing into the rhabdomere after light stimulation of dark-adapted cells causes fast Ca2+ transients that reach peak values higher than 200 mu M in

Originele taal-2English
Pagina's (van-tot)1701-1709
Aantal pagina's9
TijdschriftThe Journal of Neuroscience
Nummer van het tijdschrift5
StatusPublished - 1-mrt.-2000

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