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pulvinus n.(pl. -ni ) 【植物;植物學】葉座;葉枕。

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Potassium ions balance anions and organic acids , and are thus important in osmoregulation , the control of stomatal opening , and leaf movements ( through their effects on the turgor of pulvini ) 鉀離子平衡陰離子和有機酸,因此在滲透調節、控制氣孔的開閉以及葉運動(通過葉枕膨大的影響)中很重要。