Stomatal Opening in Isolated Epidermal Strips of Vicia faba. II. Responses to KCl Concentration and the Role of Potassium Absorption |
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| Authors: | Fischer R A Hsiao T C |
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| Institution: | Laboratory of Plant-Water Relations, Department of Water Science and Engineering, University of California, Davis, California 95616. |
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| Abstract: | The stimulation by KCl of stomatal opening in isolated epidermal strips of Vicia faba was examined. In dark + normal air the opening response was maximal at 100 mm KCl while in light + CO2-free air it was maximal at about 10 mm KCl. CO2-free air was more influential than light in reducing the KCl concentration required for maximal opening. K+ was essential while Cl− seemed to be of secondary importance in these processes. |
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