Abstract
IF one half of a leaf of Elodea densa is illuminated, the other half being screened off, a decrease in the permeability strictly localized to the illuminated area is observed1. This area accumulates methylene blue considerably more strongly than the unilluminated area.
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VIRGIN, H. A Localized Effect of Light on the Protoplasmic Viscosity of Plant Cells. Nature 166, 485 (1950). https://doi.org/10.1038/166485a0
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DOI: https://doi.org/10.1038/166485a0
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