NHX1 — Nicotiana attenuata
Summary
A4A49_21298 (NHX1/NHX2) on coyote tobacco (Nicotiana attenuata) chromosome 1 encodes a member of the cation/H⁺ exchanger CPA1 family with sodium:hydrogen exchanger, lithium:proton antiporter, and potassium:proton antiporter activities. The gene is associated with vacuolar membrane transport, sodium import, lithium export, cell pH regulation, potassium ion homeostasis, and response to superoxide. It is linked to leaf potassium content, sodium uptake, yield, photosynthetic rate, stomatal resistance, transpiration rate, root development traits, plant height, abscisic acid sensitivity, and disease tolerance. Associations also include stomatal conductance, cell expansion, drought tolerance, auxin homeostasis, gravitropism, and flower development. Related genes in other species connect the family to vacuolar pH regulation, ion homeostasis, heat and cold tolerance, seed germination, and biomass production.
Annotations
- Chromosome
- 1
- Related genes
- NHX1, NHX8, CEO, NHX3, SOS1, SNX1, NHX5, NHX6
- GO terms
- homeostasis, salinity response, sodium import, cell pH regulation, sodium:hydrogen exchanger, Response To Ozone, Programmed Cell Death, Potassium Ion Homeostasis
- Publications
- 19941154, 24337801, 27881680, 16132859, 22639643, 27940414, 30018156, 26353760
- Traits
- virescence, salt tolerance, phosphate uptake, salt stress tolerance, root-to-shoot communication, root-to-shoot long-distance signalling, circadian rhythm, heat tolerance