Nernst Potential Measurements on the Leaf Cells of the Moss,Hookeria lucens

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Abstract
A study has been made of the ion distributions in the leaf cells of the moss, Hookeria lucens. The cells were subjected to chemical analysis and electrical potential measurements. The observed internal concentrations were 210 mM/1 for potassium, 3.9 mM/1 for sodium, 22 mM/1 for calcium, and 27 mM/1 for chloride. A wide range of electrical potential values were obtained. While a majority of these values were grouped around —145 mV, a significant number were found at —200 mV. Nernst potentials for the various ions were calculated and compared with the observed electrical potentials.

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