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Title: Foliar application of either melatonin or sodium nitpoprusside regulates the antioxidant status, and the morpho-physiological attributes and essential oil production in sage (Salvia officinalis L.) under salinity stress
Authors: Sheikhalipour, Morteza 
Kulak, Muhittin 
Mohammadi, Seyed Abolghasem 
Esmaielpour, Behrooz 
Nouraein, Mojtaba 
Koçak, Mehmet Zeki 
Farajzadeh, Seyed Mohammad 
Gohari, Gholamreza 
Fotopoulos, Vasileios 
Vita, Federico 
Major Field of Science: Agricultural Sciences
Field Category: Agriculture Forestry and Fisheries
Keywords: Abiotic stress;Essential oil;Medicinal plants;Oxidative stress;Signal molecules
Issue Date: 1-Jan-2024
Source: Scientia Horticulturae, 2024, vol 323
Volume: 323
Journal: Scientia Horticulturae 
Abstract: Soil salinity is one of the most severe abiotic stress factors affecting crop growth and yield. Among the molecules used to mitigate the adverse effects of salt, melatonin (MT) and the nitric oxide donor sodium nitroprusside (SNP) played a crucial role in mediating plant responses to salt stress. However, the molecules are worthy of further consideration and investigation with regard to the secondary metabolism of plants suffering from salt stress. Herein, the potential role of MT and SNP in alleviating/buffering the negative effects of salt stress on sage (Salvia officinalis L.) seedlings was investigated. In this context, MT (0, 50 µM, and 100 µM) and SNP (0, 50 µM, and 100 µM) were applied individually. The interactive effects of each molecule with salt stress (50 and 100 mM NaCl) were assessed using a range of morpho-physiological, biochemical and analytical parameters of sage. The results of the study showed that high salinity (100 mM NaCl) critically reduced growth and photosynthetic traits and increased oxidative stress damage parameters. On the other hand, high concentrations (100 µM) of MT or SNP treatments significantly improved growth, enhanced photosynthetic traits and mitigated oxidative stress damage parameters. For instance, individual treatments of both MT and SNP enhanced tolerance of sage against salinity stress by increasing relative water content, proline, total carbohydrates, total phenolics and flavonoid content, and the antioxidant enzymes and DPPH scavenging activities. Essential oil yield and individual essential oil compounds were also increased by MT and SNP. Overall, these molecules can be considered as potential protective agents against salinity stress in sage seedlings.
ISSN: 03044238
DOI: 10.1016/j.scienta.2023.112526
Rights: Attribution-NonCommercial-NoDerivatives 4.0 International
Type: Article
Affiliation : University of Tabriz 
Igdir University 
University of Mohagheh Ardabili 
University of Maragheh 
Azarbaijan Shahid Madani University 
Cyprus University of Technology 
University of Bari Aldo Moro 
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