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Engineer Salt-Tolerant Grapevines for Coastal and Arid Region Expansion

Rising sea levels and increasing soil salinity threaten coastal vineyards while limiting wine production expansion to salt-affected regions worldwide. Salinity damages grape vines through osmotic stress and ionic toxicity, reducing yields and quality while making vast areas unsuitable for viticulture. The challenge is engineering salt tolerance in premium wine grape varieties without compromising wine characteristics. Current salt-tolerant rootstocks provide limited protection and may affect wine flavor profiles negatively. Advanced genetic approaches could introduce salt tolerance mechanisms from halophytic plants, but require careful selection to avoid undesired traits. Technical barriers include understanding complex salt tolerance pathways, maintaining wine quality standards, and ensuring genetic stability across diverse growing conditions. Success would open new regions for wine production, protect existing coastal vineyards from climate change impacts, improve food security in salt-affected areas, and provide genetic tools applicable to other crops facing salinity challenges in an era of rising sea levels and irrigation-induced soil degradation.

Applied Sciences, Specialized Agriculture, Viticulture & Enology