English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/64691
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

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


Release of SOS2 kinase from sequestration with GIGANTEA determines salt tolerance in Arabidopsis

AuthorsKim, Woe-Yeon; Yun, Dae-Jin; Pérez Hormaeche, J. ; Quintero, Francisco J. ; Pardo, José M.
Issue Date15-Jan-2013
PublisherNature Publishing Group
CitationNature Communications 4 Article number 1352: (2013)
AbstractEnvironmental challenges to plants typically entail retardation of vegetative growth and delay or cessation of flowering. Here we report a link between the flowering time regulator, GIGANTEA (GI), and adaptation to salt stress that is mechanistically based on GI degradation under saline conditions, thus retarding flowering. GI, a switch in photoperiodicity and circadian clock control, and the SNF1-related protein kinase SOS2 functionally interact. In the absence of stress, the GI:SOS2 complex prevents SOS2- based activation of SOS1, the major plant Na+/H+-antiporter mediating adaptation to salinity. GI over-expressing, rapidly flowering, plants show enhanced salt sensitivity, whereas gi mutants exhibit enhanced salt tolerance and delayed flowering. Salt-induced degradation of GI confers salt tolerance by the release of the SOS2 kinase. The GISOS2 interaction introduces a higher order regulatory circuit that can explain in molecular terms, the long observed connection between floral transition and adaptive environmental stress tolerance in Arabidopsis.
DescriptionKim, Woe-Yeon et al.--
Publisher version (URL)http://dx.doi.org/10.1038/ncomms2357
Appears in Collections:(IRNAS) Artículos
Show full item record
Review this work

Related articles:

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