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Science 28 October 1977:
Vol. 198. no. 4315, pp. 405 - 407
DOI: 10.1126/science.198.4315.405
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Articles

Osmotically Induced Changes in Electrical Properties of Plant Protoplast Membranes

R. H. RACUSEN 1, A. M. KINNERSLEY 1, and A. W. GALSTON 1

1 Department of Biology, Yale University, New Haven, Connecticut 06520

The internal electrical potential of protoplasts from six different plant species was positive. Plasmolyzed cells of leaves had positive voltages of similar magnitude. Both Elodea leaf cells and tobacco protoplasts with regenerated cell walls became more electronegative during deplasmolysis. These findings suggest that cell turgor affects membrane components that determine cellular potential.

Submitted on April 18, 1977
Revised on May 26, 1977


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Sepal Color Variation of Hydrangea macrophylla and Vacuolar pH Measured with a Proton-Selective Microelectrode.
K. Yoshida, Y. Toyama-Kato, K. Kameda, and T. Kondo (2003)
Plant Cell Physiol. 44, 262-268
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Science. ISSN 0036-8075 (print), 1095-9203 (online)