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. 1969 Oct 10;166(3902):240-3.
doi: 10.1126/science.166.3902.240.

Current-voltage relations during illumination: photoreceptor membrane of a barnacle

H M Brown, R W Meech, H Koike, S Hagiwara

Current-voltage relations during illumination: photoreceptor membrane of a barnacle

H M Brown et al. Science. .

Abstract

In voltage clamped photoreceptor cells of the barnacle, light-induced membrane current varied nonlinearly with membrane potential and changed sign at about + 27 millivolts (reversal potential) independently of light intensity. Instantaneous current-voltage relations were linear and intersected the voltage axis at the reversal potential. Illumination increased membrane conductance that was dependent on membrane potential, light intensity, and time.

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