
Salt Stress Injury and Resistance Mechanism in Plants
S. Alagappan
Dept. of Agronomy, The Indian Agriculture College (Affiliated to the Tamil Nadu Agricultural University), Raja Nagar, Radhapuram, Tamil Nadu (627 111), India
DOI: NIL
Keywords: Mitigation of salt stress, Oxidative stress, Salt stress effects, Salt tolerance
Abstract
Salinity is a major abiotic stress limiting growth and productivity of plants in many areas of the world due to increasing use of poor quality of water for irrigation and soil salinization. Plant adaptation or tolerance to salinity stress involves complex physiological traits, metabolic pathways, and molecular or gene networks. A comprehensive understanding on how plants respond to salinity stress at different levels and an integrated approach of combining molecular tools with physiological and biochemical techniques are imperative for the development of salt-tolerant varieties of plants in salt-affected areas. Recent research has identified various adaptive responses to salinity stress at molecular, cellular, metabolic, and physiological levels, although mechanisms underlying salinity tolerance are far from being completely understood.
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Reference
Munns. R and M. Tester, 2008. “Mechanisms of salinity tolerance,” Annual Review of Plant Biology, vol. 59, pp. 651–681.
James R. A, C. Blake, C. S. Byrt, and R. Munns, 2011. “Major genes for Na+ exclusion, Nax1 and Nax2 (wheat HKT1;4 and HKT1;5), decrease Na+ accumulation in bread wheat leaves under saline and waterlogged conditions,” Journal of Experimental Botany, vol. 62, no. 8, pp. 2939–2947.
Rahnama. A, R. A. James, K. Poustini, and R. Munns, 2010. “Stomatal conductance as a screen for osmotic stress tolerance in durum wheat growing in saline soil,” Functional Plant Biology, vol. 37, no. 3, pp. 255–263.