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Authors Popova, OV; Yang, O; Dietz, KJ; Golldack, D
Author Full Name Popova, Olga V.; Yang, Oksoon; Dietz, Karl-Josef; Golldack, Dortje
Title Differential transcript regulation in Arabidopsis thaliana and the halotolerant Lobularia maritima indicates genes with potential function in plant salt adaptation
Source GENE
Language English
Document Type Article
Author Keywords Arabidopsis thaliana; bZIP transcription factor; Chloride accumulation; cDNA-array; Lobularia maritima
Keywords Plus VACUOLAR H+-ATPASE; HIGH-SALINITY; MOLECULAR RESPONSES; EXPRESSION; DROUGHT; LOCALIZATION; MICROARRAY; TOLERANCE; CELLS; RICE
Abstract Salt stress is an environmental factor that severely impairs plant growth and productivity. Salinity-induced transcript accumulation was monitored in the salt-sensitive Arabidopsis thaliana and the related salt-tolerant Lobularia maritima using cDNA-arrays with expressed sequence tags derived from a cDNA subtraction library of salt-stressed L maritima. The expression profiles revealed differences of the steady state transcript regulation in A. thaliana and L maritima in response to salt stress. The differentially expressed transcripts include those involved in the control of gene expression as a transcription factor 11 homologue as well as signal transduction elements such as a serine/threonine protein kinase. a SNF1-related protein kinase AKIN10 homologue. and protein phosphatase 2C. Other ESTs with differential regulation patterns included transcripts encoding proteins with function in general stress responses and defense and included a peroxidase, dehydrins, enzymes of lipid and nitrogen metabolism, and functionally unclassified proteins. In a more detailed analysis the basic leucine zipper transcription factor AtbZIP24 showed differential transcript abundance in A. thaliana and L maritima in response to salt stress. Transgenic AtbZIP24-RNAi lines showed improved growth and development under salt stress that was correlated with changed Cl- accumulation. The data indicate that AtbZIP24 functions as a transcriptional repressor in salt-stressed A. thaliana that negatively regulates growth and development under salinity in context of controlling Cl- homeostasis. Monitoring the differential and tissue specific global regulation of gene expression during adaptation to salinity in salt-sensitive and halotolerant plants is a promising and powerful approach to identify novel elements of plant salt stress adaptation. (c) 2008 Elsevier B.V. All rights reserved.
Author Address [Popova, Olga V.; Yang, Oksoon; Dietz, Karl-Josef; Golldack, Dortje] Univ Bielefeld, Fac Biol, Dept Biochem & Physiol Plants, D-33615 Bielefeld, Germany
Reprint Address Golldack, D (reprint author), Univ Bielefeld, Fac Biol, Dept Biochem & Physiol Plants, D-33615 Bielefeld, Germany.
E-mail Address dortje.golldack@uni-bielefeld.de
ResearcherID Number Dietz, Karl-Josef/B-6029-2009
ORCID Number Dietz, Karl-Josef/0000-0003-0311-2182
Funding Agency and Grant Number Deutsche Forschungsgemneinschaft (Bonn, Germany)German Research Foundation (DFG)
Funding Text The work was supported by the Deutsche Forschungsgemneinschaft (Bonn, Germany). The valuable help of Peter Brockhausen with array data analyses is gratefully acknowledged.
Times Cited 20
Total Times Cited Count (WoS, BCI, and CSCD) 25
Publisher ELSEVIER SCIENCE BV
Publisher City AMSTERDAM
Publisher Address PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
ISSN 0378-1119
29-Character Source Abbreviation GENE
ISO Source Abbreviation Gene
Publication Date NOV 1
Year Published 2008
Volume 423
Issue 2
Beginning Page 142
Ending Page 148
Digital Object Identifier (DOI) 10.1016/j.gene.2008.07.017
Page Count 7
Web of Science Category Genetics & Heredity
Subject Category Genetics & Heredity
Document Delivery Number 361XF
Unique Article Identifier WOS:000260160300006
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