Roles of tandem-pore K plus channels in plants - a puzzle still to be solved

被引：59

作者：

Voelker, C. ^{[1
]}

Gomez-Porras, J. L. ^{[2
]}

Becker, D. ^{[3
]}

Hamamoto, S. ^{[4
]}

Uozumi, N. ^{[4
]}

Gambale, F. ^{[5
]}

Mueller-Roeber, B. ^{[1
]}

Czempinski, K. ^{[1
]}

Dreyer, I. ^{[6
]}

机构：

[1] Univ Potsdam, Inst Biochem & Biol, D-14476 Potsdam, Germany

[2] Univ Bielefeld, Fac Biol, Bielefeld, Germany

[3] Univ Wurzburg, Julius von Sachs Inst, Wurzburg, Germany

[4] Tohoku Univ, Grad Sch Engn, Dept Biomol Engn, Sendai, Miyagi 980, Japan

[5] CNR, Ist Biofis, Genoa, Italy

[6] Univ Potsdam, Inst Biochem & Biol, Heisenberg Grp Biophys & Mol Plant Biol, Potsdam, Germany

来源：

PLANT BIOLOGY | 2010年 / 12卷

关键词：

14-3-3; protein; potassium channel; regulation; tonoplast; TPK; vacuole; PROTEIN STORAGE VACUOLE; GUARD-CELL VACUOLES; ION CHANNELS; MOLECULAR-MECHANISMS; MEMBRANE; TRANSPORT; TPK1; PHYSIOLOGY; FAMILIES; CURRENTS;

D O I：

10.1111/j.1438-8677.2010.00353.x

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The group of voltage-independent K+ channels in Arabidopsis thaliana consists of six members, five tandem-pore channels (TPK1-TPK5) and a single K-ir-like channel (KCO3). All TPK/KCO channels are located at the vacuolar membrane except for TPK4, which was shown to be a plasma membrane channel in pollen. The vacuolar channels interact with 14-3-3 proteins (also called General Regulating Factors, GRFs), indicating regulation at the level of protein-protein interactions. Here we review current knowledge about these ion channels and their genes, and highlight open questions that need to be urgently addressed in future studies to fully appreciate the physiological functions of these ion channels.

引用

页码：56 / 63

页数：8

共 45 条

[1] Control of ionic currents in guard cell vacuoles by cytosolic and luminal calcium [J].

Allen, GJ ;

Sanders, D .

PLANT JOURNAL, 1996, 10 (06) :1055-1069

[2]

ALLEN GJ, 1995, PLANT CELL, V7, P1473

[3] Emerging roles for two-pore-domain potassium channels and their potential therapeutic impact [J].

Bayliss, Douglas A. ;

Barrett, Paula Q. .

TRENDS IN PHARMACOLOGICAL SCIENCES, 2008, 29 (11) :566-575

[4] AtTPK4, an Arabidopsis tandem-pore K+ channel, poised to control the pollen membrane voltage in a pH- and Ca2+-dependent manner [J].

Becker, D ;

Geiger, D ;

Dunkel, M ;

Roller, A ;

Bertl, A ;

Latz, A ;

Carpaneto, A ;

Dietrich, P ;

Roelfsema, MRG ;

Voelker, C ;

Schmidt, D ;

Mueller-Roeber, B ;

Czempinski, K ;

Hedrich, R .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2004, 101 (44) :15621-15626

[5] Reversible protein phosphorylation regulates the activity of the slow-vacuolar ion channel [J].

Bethke, PC ;

Jones, RL .

PLANT JOURNAL, 1997, 11 (06) :1227-1235

[6] TPK1 is a vacuolar ion channel different from the slow-vacuolar cation channel [J].

Bihler, H ;

Eing, C ;

Hebeisen, S ;

Roller, A ;

Czempinski, K ;

Bertl, A .

PLANT PHYSIOLOGY, 2005, 139 (01) :417-424

[7] New structure and function in plant K+ channels: KCO1, an outward rectifier with a steep Ca2+ dependency [J].

Czempinski, K ;

Zimmermann, S ;

Ehrhardt, T ;

MullerRober, B .

EMBO JOURNAL, 1997, 16 (10) :2565-2575

[8] Vacuolar membrane localization of the Arabidopsis 'two-pore' K+ channel KCO1 [J].

Czempinski, K ;

Frachisse, JM ;

Maurel, C ;

Barbier-Brygoo, H ;

Mueller-Roeber, B .

PLANT JOURNAL, 2002, 29 (06) :809-820

[9] Molecular mechanisms and regulation of plant ion channels [J].

Czempinski, K ;

Gaedeke, N ;

Zimmermann, S ;

Müller-Röber, B .

JOURNAL OF EXPERIMENTAL BOTANY, 1999, 50 :955-966

[10]

de Boer AH, 2002, BIOCHEM SOC T, V30, P416, DOI 10.1042/BST0300416

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