直接测定鸭跖草属气孔复合体中的 pH 值。
Direct Determination of pH in the stomatal complex of Commelina.
机构信息
Department of Botany, University of Aberdeen, St.Machar Drive, AB9 2UD, Aberdeen, U. K..
出版信息
Planta. 1975 Jan;122(2):209-12. doi: 10.1007/BF00388660.
PMID:24435970
Abstract
The vacuolar pH of individual cells of the epidermis of intact leaves of Commelina communis L. has been determined using pH sensitive microelectrodes. The results show that the pH of the guard cells increases by approximately 0.5 units during stomatal opening. The changes in vacuolar pH mirror the changes in vacuolar potassium concentration that occur during stomatal movements.
摘要
使用 pH 敏感微电极测定了完整的鸭跖草属植物叶片表皮细胞的液泡 pH 值。结果表明，气孔开放时保卫细胞的 pH 值大约增加 0.5 个单位。液泡 pH 值的变化反映了气孔运动过程中液泡钾浓度的变化。
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