English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/37771
Share/Impact:
Statistics
logo share SHARE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Title

Functional conservation between yeast and plant endosomal Na+/H+ antiporters

AuthorsQuintero, Francisco J. ; Blatt, Michael R.; Pardo, José M.
KeywordsSodium/proton antiporter
Sodium compartmentation
Halotolerance
Arabidopsis thaliana
Saccharomyces cerevisiae
Issue Date14-Apr-2000
PublisherElsevier
CitationFebs Letters 471(2-3): 224-228 (2000)
AbstractVacuolar compartmentation of Na+ is an essential mechanism for salinity tolerance since it lowers cytosolic Na+ levels while contributing to osmotic adjustment for cell turgor and expansion. The AtNHX1 protein of Arabidopsis thaliana substituted functionally for ScNHX1, the endosomal Na+/H+ antiporter of yeast. Ion tolerance conferred by AtNHX1 and ScNHX1 correlated with ion uptake into an intracellular pool that was energetically dependent on the vacuolar (H+)ATPase. AtNHX1 localized to vacuolar membrane fractions of yeast. Hence, both transporters share an evolutionarily conserved function in Na+ compartmentation. AtNHX1 mRNA levels were upregulated by ABA and NaCl treatment in leaf but not in root tissue.
Description5 pages, 4 figures.
Publisher version (URL)http://dx.doi.org/10.1016/S0014-5793(00)01412-5
URIhttp://hdl.handle.net/10261/37771
DOI10.1016/S0014-5793(00)01412-5
ISSN0014-5793
Appears in Collections:(IRNAS) Artículos
Files in This Item:
There are no files associated with this item.
Show full item record
Review this work
 


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.