Journal
JOURNAL OF EXPERIMENTAL BOTANY
Volume 57, Issue 2, Pages 425-436Publisher
OXFORD UNIV PRESS
DOI: 10.1093/jxb/erj034
Keywords
acclimation; mineral nutrition; plant plasticity; potassium; potassium deficiencies
Categories
Ask authors/readers for more resources
The availability of potassium to the plant is highly variable, due to complex soil dynamics, which are strongly influenced by root-soil interactions. A low plant potassium status triggers expression of high affinity K+ transporters, up-regulates some K+ channels, and activates signalling cascades, some of which are similar to those involved in wounding and other stress responses. The molecules that signal low K+ status in plants include reactive oxygen species and phytohormones, such as auxin, ethylene and jasmonic acid. Apart from up-regulation of transport proteins and adjustment of metabolic processes, potassium deprivation triggers developmental responses in roots. All these acclimation strategies enable plants to survive and compete for nutrients in a dynamic environment with a variable availability of potassium.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available