Viticulture Studies
2026, Vol 6, Num, 1 (Pages: 029-047)
Nitric Oxide (NO) and Abiotic Stress Tolerance: Applications in Viticulture
2 Tekirdağ Namık Kemal Üniversitesi, Bahçe Bitkileri Bölümü, Tekirdağ, Türkiye
3 Ankara Üniversitesi, Biyoteknoloji Enstitüsü, Ankara, Türkiye DOI : 10.52001/vis.2026.33.29.47 Viewed : 80 - Downloaded : 75 Climate change–induced stress conditions have caused significant adverse effects on agricultural production and plant physiology. The physiological and molecular responses developed by plants against these stress factors, as well as the biomolecules involved in these processes, are of great importance in terms of plant stress biology. Despite various stress conditions, plants utilize signaling molecules to achieve stress tolerance. In recent years, studies have revealed that nitric oxide (NO), one of these signaling molecules, plays a crucial role in the regulation of plant growth, stress perception, and defense mechanisms. A detailed investigation of the effects of NO on plants will contribute significantly to a better understanding of plant responses under stress conditions and to the development of sustainable approaches in agricultural production. In this review, the biosynthetic mechanisms of NO in plants, its functions in physiological processes, and its regulatory roles under abiotic stress conditions are discussed; furthermore, recent literature findings are presented regarding the mitigation of the adverse effects of factors such as drought, salinity, and heat stress in viticulture, the enhancement of grapevine stress tolerance, and the preservation of fruit quality. The increasing importance of NO in plant stress biology stands out as a promising approach for the development of sustainable production strategies in viticulture. Keywords : Nitric Oxide Signaling Molecules Abiotic Stress Stress Tolerance Viticulture
