Potassium-selective channel in the red beet vacuolar membrane

被引:20
作者
Pottosin, II [1 ]
Martínez-Estévez, M [1 ]
Dobrovinskaya, OR [1 ]
Muñiz, J [1 ]
机构
[1] Univ Colima, Ctr Univ Invest Biomed, Colima 28047, Col, Mexico
关键词
Beta vulgaris; patch-clamp; potassium channel; salt stress; vacuole;
D O I
10.1093/jxb/erg067
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
In higher plants the vacuolar K+-selective (VK) channel was identified solely in guard cells. This patch-clamp study describes a 40 pS homologue of the VK channel in Beta vulgaris taproot vacuoles. This voltage-independent channel is activated by submicromolar Ca2+, and is ideally selective for K+ over Cl- and Na+.
引用
收藏
页码:663 / 667
页数:5
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