Biophysical Journal 58: 1295-1302 (1990)
© 1990 the Biophysical Society

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Uhl, R. Articles by Hegemann, P. Search for Related Content PubMed Articles by Uhl, R. Articles by Hegemann, P.

Probing visual transduction in a plant cell

Optical recording of rhodopsin-induced structural changes from Chlamydomonas reinhardtii

Max-Planck-Institut für Biochemie, D-8033 Martinsried, West Germany

ABSTRACT

Light scattering studies of vertebrate rod cells have greatly aided our understanding of the visual transduction process. This technique has now been successfully applied to study visual transduction in a unicellular alga. Flash-induced light scattering changes have been recorded which are repeatable, graded with photon exposure, and adaptive. They appear on a timescale of 15-1,000 ms and correlate kinetically with flash-induced movement responses. The responsible photoreceptor is a rhodopsin. Evidence is provided for the ability of the organism to count single photons.

This article has been cited by other articles:

				P. Berthold, S. P. Tsunoda, O. P. Ernst, W. Mages, D. Gradmann, and P. Hegemann Channelrhodopsin-1 Initiates Phototaxis and Photophobic Responses in Chlamydomonas by Immediate Light-Induced Depolarization PLANT CELL, June 1, 2008; 20(6): 1665 - 1677. [Abstract] [Full Text] [PDF]