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Rice WNK1 is regulated by abiotic stress and involved in internal circadian rhythm

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Title Rice WNK1 is regulated by abiotic stress and involved in internal circadian rhythm
 
Creator Kumar, Kundan
Rao, Kudupudi Prabhakara
Biswas, Dipul Kumar
Sinha, Alok Krishna
 
Subject circadian
diurnal
Oryza sativa
stress
with no Lysine kinase (WNK)
 
Description In Mammalian system the WNK (with no lysine kinase) serine-threonine protein kinase gene family is suggested to be
involved in regulating ion homeostasis and other pathophysiological processes including cancer, hypertension and
renal ion transport. In plant system the information about WNK genes is very poor. However, WNK-like genes have also
been identified in plants, including ten in Arabidopsis, designated AtWNK1-AtWNK10. Here we report the cloning and
characterization of a homologue of AtWNK1 gene from Oryza sativa indica cultivar Pusa Basmati-1 rice and designated as
OsWNK1. The specific feature of this gene is lysine residue in kinase subdomain II, which is essential for the coordination
of ATP in the active center and conserved among all other kinases, is absent. OsWNK1 was found to respond differentially
under various abiotic stresses like cold, heat, salt, drought. OsWNK1 gene showed rhythmic expression profile under
diurnal and circadian conditions at the transcription level. Our data indicates that OsWNK1 in rice might play a role in
abiotic stress tolerance and that it is involved in internal rhythm.
The work
was supported by grant from Department of Biotecnology, India
 
Date 2014-04-28T07:01:14Z
2014-04-28T07:01:14Z
2011
19 July 2010
 
Type Article
 
Identifier Plant Signal. Behav., 6(3): 316-320
http://hdl.handle.net/123456789/195
 
Language en
 
Publisher Landes Bioscience