reviewFrontiers in Plant ScienceNov 29, 2016GOLD OA

New Insights on Plant Salt Tolerance Mechanisms and Their Potential Use for Breeding

Institut Supérieur de Biotechnologie de Sfax · Centre of Biotechnology of Sfax · +8 more institutions

PubMed
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Abstract

Soil salinization is a major threat to agriculture in arid and semi-arid regions, where water scarcity and inadequate drainage of irrigated lands severely reduce crop yield. Salt accumulation inhibits plant growth and reduces the ability to uptake water and nutrients, leading to osmotic or water-deficit stress. Salt is also causing injury of the young photosynthetic leaves and acceleration of their senescence, as the Na+ cation is toxic when accumulating in cell cytosol resulting in ionic imbalance and toxicity of transpiring leaves. To cope with salt stress, plants have evolved mainly two types of tolerance mechanisms based on either limiting the entry of salt by the roots, or controlling its concentration…

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