INWARD AND OUTWARD RECTIFYING K+ CHANNELS OF THE PLASMA-MEMBRANE HAVE DIFFERENT PHYSIOLOGICAL ROLES

被引：5

作者：

CERANA, R

COLOMBO, R

机构：

[1] Dipartimento di Biologia, Università degli Studi, Milano, I-20133, via Celoria

来源：

JOURNAL OF PLANT PHYSIOLOGY | 1993年 / 142卷 / 06期

关键词：

ARABIDOPSIS-THALIANA L; K+ CHANNELS; PATCH-CLAMP TECHNIQUE; PLASMA MEMBRANE;

D O I：

10.1016/S0176-1617(11)80902-8

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

In a patch-clamp study, the activation potential of plasma membrane K+ channels of Arabidopsis thaliana cultured cells appeared to be influenced by the electrochemical K+ gradient. The hyperpolarization-activated inward rectifying channels opened at potentials negative to the K+ equilibrium potential, permitting only K+ influx; the depolarization-activated outward rectifying channels opened at potentials positive to the K+ equilibrium potential, permitting only K+ efflux. The two types of channels play different physiological roles.

引用

收藏

页码：685 / 688

页数：4

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