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Potassium transporters in plants – Involvement in K + acquisition, redistribution and homeostasis
Author(s) -
Gierth Markus,
Mäser Pascal
Publication year - 2007
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/j.febslet.2007.03.035
Subject(s) - potassium , chemistry , homeostasis , transporter , redistribution (election) , antiporters , biochemistry , biophysics , biology , microbiology and biotechnology , organic chemistry , politics , political science , law , gene
Potassium is a major plant nutrient which has to be accumulated in great quantity by roots and distributed throughout the plant and within plant cells. Membrane transport of potassium can be mediated by potassium channels and secondary potassium transporters. Plant potassium transporters are present in three families of membrane proteins: the K + uptake permeases (KT/HAK/KUP), the K + transporter (Trk/HKT) family and the cation proton antiporters (CPA). This review will discuss the contribution of members of each family to potassium acquisition, redistribution and homeostasis.