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

  • 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.

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Author:Camilla Voelker, Judith Lucia Gomez-Porras, Dirk Becker, Shin Hamamoto, Nobuyuki Uozumi, Franco Gambale, Bernd Müller-RöberORCiDGND, Katrin Czempinski, Ingo DreyerORCiDGND
URL:http://www3.interscience.wiley.com/cgi-bin/issn?DESCRIPTOR=PRINTISSN&VALUE=1435-8603
DOI:https://doi.org/10.1111/j.1438-8677.2010.00353.x
ISSN:1435-8603
Document Type:Article
Language:English
Year of first Publication:2010
Year of Completion:2010
Release Date:2017/03/25
Source:Plant Biology. - ISSN 1435-8603. - Suppl., 12 (2010), S. 56 - 63
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Biochemie und Biologie
Peer Review:Referiert