Plant and Cell Physiology, 1986, Vol. 27, No. 1 163-168
© 1986
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Action Spectrum of Light-Induced Membrane Hyperpolarization in Egeria densa
Department of Biology, Faculty of Science, University of Tokyo Hongo, Tokyo 113, Japan
Action spectra of light-induced membrane hyperpolarization and photosynthetic oxygen evolution were determined in cells of Egeria densa. Since both spectra were similar, photosynthetic pigments are assumed to be involved in the light-induced membrane hyperpolarization. However, the saturation levels of light fluencies differed greatly between the two light reactions. Light-induced hyperpolarization reached the maximum level at a light fluence less than one-tenth that needed for saturation of photosynthesis.
(Received June 5, 1985; Accepted November 13, 1985)
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