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Functional analysis of AtHKT1 in Arabidopsis shows that Na+ recirculation by the phloem is crucial for salt tolerance
Two allelic recessive mutations of Arabidopsis, sas2‐1 and sas2‐2, were identified as inducing sodium overaccumulation in shoots. The sas2 locus was found (by positional cloning) to correspond to the… Expand
Identification and Disruption of a Plant Shaker-like Outward Channel Involved in K+ Release into the Xylem Sap
SKOR, a K+ channel identified in Arabidopsis, displays the typical hydrophobic core of the Shaker channel superfamily, a cyclic nucleotide-binding domain, and an ankyrin domain. Expression in Xenopus… Expand
Cloning and expression in yeast of a plant potassium ion transport system.
A membrane polypeptide involved in K+ transport in a higher plant was cloned by complementation of a yeast mutant defective in K+ uptake with a complementary DNA library from Arabidopsis thaliana. A… Expand
pH and Ionic Conditions in the Apoplast
IONIC PROPERTIES OF THE APOPLAST . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . 104 The Apoplast as an Ion Exchanger . . ......... 104 The… Expand
The Arabidopsis outward K+ channel GORK is involved in regulation of stomatal movements and plant transpiration
- E. Hosy, Alain Vavasseur, +10 authors H. Sentenac
- Medicine, Biology
- Proceedings of the National Academy of Sciences…
- 1 April 2003
Microscopic pores present in the epidermis of plant aerial organs, called stomata, allow gas exchanges between the inner photosynthetic tissue and the atmosphere. Regulation of stomatal aperture,… Expand
Nomenclature for HKT transporters, key determinants of plant salinity tolerance.
- J. Platten, O. Cotsaftis, +18 authors M. Tester
- Biology, Medicine
- Trends in plant science
- 1 August 2006
Salinity tolerance in many plants is inversely related to the extent of Na+ accumulation in the shoot, notably in the major cereals such as wheat and rice . In Arabidopsis and rice, there is… Expand
Molecular mechanisms and regulation of K+ transport in higher plants.
Potassium (K+) plays a number of important roles in plant growth and development. Over the past few years, molecular approaches associated with electrophysiological analyses have greatly advanced our… Expand
Regulated expression of Arabidopsis Shaker K+ channel genes involved in K+ uptake and distribution in the plant
- G. Pilot, F. Gaymard, K. Mouline, I. Chérel, H. Sentenac
- Medicine, Biology
- Plant Molecular Biology
- 1 March 2003
Potassium is the most abundant cation in the cytosol, where it plays a role in basal functions. Rapid uptake and distribution of K+ is therefore required for plant growth. Three members of the… Expand
In Vivo Intracellular pH Measurements in Tobacco and Arabidopsis Reveal an Unexpected pH Gradient in the Endomembrane System[W]
This work combines biochemistry and live-cell imaging to perform in vivo pH measurements of different compartments of the endomembrane system in plant cells. It reports that the prevacuolar… Expand
K+ channel activity in plants: Genes, regulations and functions
Potassium (K+) is the most abundant cation in the cytosol, and plant growth requires that large amounts of K+ are transported from the soil to the growing organs. K+ uptake and fluxes within the… Expand