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International Journal of Botany
  Year: 2010 | Volume: 6 | Issue: 2 | Page No.: 136-143
DOI: 10.3923/ijb.2010.136.143
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Biochemical Mechanisms of Salt Tolerance in Plants: A Review

V. Mudgal, N. Madaan and A. Mudgal

Among abiotic stresses, high salinity stress is the most severe environmental stress, which impairs crop production on at least 20% of irrigated land worldwide. Understanding the mechanism of stress tolerance along with genes involved in stress signaling network is important for crop improvement. The growth reduction is recorded as a main morphological effect of salinity. This is due to many biochemical mechanisms of the plant. It is thought that excess of salts retards the absorption of water and reduce the growth through osmotic effect. Detrimental effects of salts on growth may be due to the toxicity of specific ions, elevation of osmotic pressure or the increase in alkalinity which may restrict the availability of water or influence cellular physiology and metabolic path ways. Salinity stress response is multigenic, as a number of processes involved in the tolerance mechanism. It affected various compatible solutes/osmolytes, polyamines, reactive oxygen species, antioxidant defense mechanism, ion transport and compartmentalization of injurious ions. Various strategies to improve salinity stress tolerance have been discussed in the present review.
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  •    Growth, Biochemical Constituents, Micronutrient Uptake and Yield Response of six Tomato (Lycopersicum esculentum L.) Cultivars Grown under Salinity Stress
  •    Assessment of Osmolyte Accumulation in Heavy Metal Exposed Salvinia natans
  •    Proline, Hydrogen Peroxide, Membrane Stability and Antioxidant Enzyme Activity as Potential Indicators for Salt Tolerance in Rice (Oryza sativa L.)
  •    Exogenous Sorbitol and Trehalose Mitigated Salt Stress Damage in Salt-sensitive but not Salt-tolerant Rice Seedlings
How to cite this article:

V. Mudgal, N. Madaan and A. Mudgal, 2010. Biochemical Mechanisms of Salt Tolerance in Plants: A Review. International Journal of Botany, 6: 136-143.

DOI: 10.3923/ijb.2010.136.143






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