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Plant Physiology 53:122-124 (1974)
© 1974 American Society of Plant Biologists

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Articles

Higher Plant Cell Membrane Resistance by a Single Intracellular Electrode Method 1

W. P. Anderson2, D. L. Hendrix3 and N. Higinbotham

a Department of Botany, Washington State University, Pullman, Washington 99163

A single intracellular microelectrode technique has been adapted to measure membrane resistance in a higher plant cell. As a direct result of the convenience of this method, which allows relatively long term recordings on a single cell, it has been found that membrane resistance increases for about 30 minutes after cell impalement in Pisum sativum L. cv. Alaska root cortical cells, although cell potential is established at a constant value in less than 2 minutes. It is proposed that these observations imply a regulating feedback loop between electrogenic pump rates and membrane potential.

2 Permanent address: Department of Botany, University of Liverpool, Liverpool, England.

3 Present address: Department of Botany and Plant Pathology, Purdue University, Lafayette, Ind. 47907.

1 This research was supported by National Science Foundation Grant GB 19201 and in part by funds provided for biological and medical research by the State of Washington Measure No. 171.




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Copyright © 1974 by the American Society of Plant Biologists