The Effects of Aluminum on Inward-Rectifier Potassium Currents in Epidermal Cell Protoplasts within the Allium cepa L

摘要：

We used whole-cell patch-clamp techniques to.investigate the effect of Al3+ on K+ currents in protoplasts isolated from epidermal cell within the Allium cepa L. The properties of these currents were similar to those seen in inward rectifying K+ channels in other plant tissues. In 10 uM AlCl3 the activated inward K+ currents were significantly larger than in the 0 uM AlCl3 at more negative voltages .In contrast, in 100 uM AlCl3, when depolarizing voltages were more negative, the inward K+ currents were inhibited relative to the currents in 10 uM AlCla.Thus, AlCl3 can have dual effects (stimulatory and inhibitory) on inwardly rectifying K+ channels in epidermal cell protoplasts of allium cepa L.

关键词： K+ channel Allium cepa L Epidermal Aluminum Patch clamp

作者: HU Jing MAO Hanping

作者单位: Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education & Jiangsu Province,Jiangsu University, P.R.China,610036

会议类型: 国际会议

会议名称: 2008 International Conference on IAEA(2008农业信息化、自动化与电气化国际会议)

会议地点: 镇江

会议语种:英文

页码: 178-182

在线出版日期: 2008-11-01（万方平台首次上网日期，不代表论文的发表时间）