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Biochem Genet (2014) 52:106115
DOI 10.1007/s10528-013-9631-8
NOTE
Karim Kadri Raouda Abdellaoui
Hatem Cheikh Mhamed Jaime A. Teixeira da Silva
Mbarek Ben Naceur
Received: 15 January 2013 / Accepted: 5 July 2013 / Published online: 21 November 2013 Springer Science+Business Media New York 2013
Introduction
Salinity is one of the most serious factors limiting the productivity of agricultural crops, with adverse effects on germination, plant vigor, and crop yield (Munns and Tester 2008). Salinization affects many irrigated areas mainly due to the use of brackish water. Worldwide, more than 45 million ha of irrigated land have been damaged by salt, and 1.5 million ha are taken out of production each year as a result of high salinity levels in the soil (Munns and Tester 2008). High salinity affects plants in several ways: water stress, ion toxicity, nutritional disorders, oxidative stress, alteration of metabolic processes, membrane disorganization, reduction of cell division and expansion, and genotoxicity (Munns 2002; Zhou et al. 2012). Together, these effects reduce plant growth, development, and survival.
The adaptation of plants to salt stress (i.e., resumption of growth after exposure to high soil salinity) requires cellular ion homeostasis involving net intracellular Na? and Cl uptake and subsequent vacuolar compartmentalization without toxic ion
K. Kadri (&)
Laboratoire de Biotechnologie et de Culture des Tissus vgtales, Centre Rgional de la Recherche en Agriculture Oasienne, 2260 Degach, Tunisiae-mail: [email protected]; [email protected]
R. Abdellaoui
Laboratoires dEcologie Vgtale, Institut des Rgion Arid, Route de Djerba km 22.5, 4119 Medenin, Tunisia
H. C. Mhamed M. B. Naceur
Laboratoire de Biotechnologie et Physiologie Vgtale, Institut National de la Recherche Agronomique de Tunisie, Rue Hdi Karray, 2049 Ariana, Tunisia
J. A. Teixeira da Silva
Faculty of Agriculture and Graduate School of Agriculture, Kagawa University, Ikenobe, Miki-cho 761-0795, Japan
Analysis of Salt-Induced mRNA Transcriptsin Tunisian Local Barley (Hordeum vulgare) Leaves Identied by Differential Display RT-PCR
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accumulation in the cytosol (Agarie et al. 2007; An et al. 2007; Abuqamar et al. 2009). In most plant species capable of growing in saline environments, Na? appears to reach a toxic concentration before Cl- does; consequently, most studies have focused on Na? exclusion and the control of Na? transport within the plant (Munns and Tester 2008). Compatible solutes are fundamental for a...