K+ transport in plants: Physiology and molecular biology

被引：181

作者：

Szczerba, Mark W. ^{[1
]}

Britto, Dev T. ^{[2
]}

Kronzucker, Herbert J. ^{[2
]}

机构：

[1] Univ Calif Davis, Dept Plant Sci, Davis, CA 95616 USA

[2] Univ Toronto, Dept Biol Sci, Toronto, ON M1C 1A4, Canada

来源：

JOURNAL OF PLANT PHYSIOLOGY | 2009年 / 166卷 / 05期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Efflux; HATS; Influx; LATS; Potassium; HIGH-AFFINITY POTASSIUM; NONSELECTIVE CATION CHANNELS; IMPROVES SALT TOLERANCE; XYLEM PARENCHYMA CELLS; VACUOLAR ION-CHANNEL; G-PROTEIN MODULATORS; PLASMA-MEMBRANE; ARABIDOPSIS-THALIANA; BARLEY ROOTS; GUARD-CELLS;

D O I：

10.1016/j.jplph.2008.12.009

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Potassium (K+) is an essential nutrient and the most abundant cation in plant cells. Plants have a wide variety of transport systems for K+ acquisition, catalyzing K+ uptake across a wide spectrum of external concentrations, and mediating K+ movement within the plant as well as its efflux into the environment. K+ transport responds to variations in external K+ supply, to the presence of other ions in the root environment, and to a range of plant stresses, via Ca2+, signaling cascades and regulatory proteins. This review wilt summarize the molecular identities of known K+ transporters, and examine how this information supports physiological investigations of K+ transport and studies of plant stress responses in a changing environment. (C) 2008 Elsevier GmbH. All rights reserved.

引用

页码：447 / 466

页数：20

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