HKT1 — Arabidopsis thaliana
Summary
AT4G10310 (HKT1) in Arabidopsis thaliana encodes a sodium transporter belonging to the Trk/HKT potassium transporter family, with experimentally confirmed sodium and potassium transporter activity. The gene is associated with salt tolerance, sodium homeostasis, and ion distribution, particularly the recirculation of sodium from shoots to roots and the regulation of shoot sodium accumulation. HKT1 has been linked to potassium uptake and nutrition, as well as to fertility and seed production. The encoded protein localises to the plasma membrane and is also associated with mitochondria. Beyond ion relations, HKT1 has been connected to traits including cell membrane stability, leaf chlorophyll content, net photosynthetic rate, water use efficiency, drought tolerance, germination rate, root length, and plant height. Studies of related genes in other species link the family to fruit yield in tomato and sodium ion transport in wheat.
Annotations
- Chromosome
- 4
- Related genes
- HKT1
- GO terms
- homeostasis, Hypersensitivity, Excretion, jasmonic acid anabolism, membrane transport, Regulation Of Gene Expression, potassium ion membrane transport, mitochondria
- Publications
- 27940414, 23539361, 35794394, 22238420, 29017432, 27380309, 25706745, 23298681
- Traits
- salt tolerance, seed production, salt stress tolerance, seed germination under salt stress, potassium retention, Salt and Potassium Stress Tolerant, Trichome Defects, Suppressor of Salt Sensitivity, Improved Growth Under Salt Stress, Trichome Defects, Suppressor of Salt Sensitivity, Trichome Absence