Abstract
RAPID application of pressure to beech leaves which have coloured vacuoles expresses sap of low osmotic pressure (about one third of the plasmolytie value) containing 80 per cent of the vacuolar pigment. T. A. Bennet-Clark and Dorothy Bexon support the contention of Phillis and Mason that this treatment expresses vacuolar sap rather than water which is filtered from the solutes.
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Points from Foregoing Letters. Nature 144, 251 (1939). https://doi.org/10.1038/144251a0
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DOI: https://doi.org/10.1038/144251a0