Iron oxide (Fe2O3) nanoparticles alleviate PEG-simulated drought stress in grape (Vitis vinifera L.) plants by regulating leaf antioxidants
نویسندگان
چکیده
Iron nanoparticles (Fe NPs) have a wide array of biological and medical applications. In agriculture, Fe NPs has the potential to be used as an innovative technique alleviate deficiency in various crops, such grape. However, effect on alleviating stresses grapevine are unexplored. The aim this study was evaluate efficiency protecting ‘Asgari’ seedless grape (Vitis vinifera L.) against oxidative stress induced by polyethylene glycol (PEG)-induced drought exposure. Here, we compared six concentrations both well-watered drought-stressed plants evaluated physiological biochemical parameters leaves after 30-days Our results revealed that indices plant health chlorophyll content, fluorescence (Fv/Fm), leaf relative water content (RWC) decreased with increased production H2O2 caused stress. Malondialdehyde (MDA), proline, non-enzymatic [e.g., ascorbate (AsA) glutathione (GSH)] enzymatic antioxidants [including monodehydroascorbate reductase (MDHAR), dehydroascorbate (DHAR), catalase (CAT), peroxidase (GPX), (GR) S-transferase (GST)] exhibited varied responses. Increasing levels up 10 µM increase under PEG-induced Moreover, antioxidant protection reducing MDA generation, enhancing concentration antioxidants, GSH/ Glutathione disulfide (GSSG) ratio AsA. Enzymatic activities reported response range, increases CAT, GPX, GR, MDHAR DHAR decreases GST (APX) activities. conclusion, demonstrated effective method negative impact grapevine.
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ژورنال
عنوان ژورنال: Scientia Horticulturae
سال: 2023
ISSN: ['1879-1018', '0304-4238']
DOI: https://doi.org/10.1016/j.scienta.2023.111847