Related Experiment Video
Updated: Jul 16, 2026

Measuring Fluxes of Mineral Nutrients and Toxicants in Plants with Radioactive Tracers
Published on: August 22, 2014
Potassium transporters in plants--involvement in K+ acquisition, redistribution and homeostasis
1Universität zu Köln, Institut für Botanik II, Gyrhofstrasse 15, 50931 Köln, Germany. markus.gierth@uni-koeln.de
Abstract:
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.
Related Concept Videos
Short-distance Transport of Resources
Primary Active Transport
Primary Active Transport
Primary Active Transport
Active Transport
Primary active transporters, like Na+, K+ and -ATPase, directly utilize ATP to move ions across the membrane. These transporters play significant roles in various physiological processes. For instance, Na+, K+ and -ATPase maintain...
The Apoplast and Symplast

