Eco-friendly synthesis of a ZnO/CuO nano-composite mitigates water stress in Pisum sativum by promoting antioxidative defense systems | ||||
| Egyptian Journal of Chemistry | ||||
| Articles in Press, Accepted Manuscript, Available Online from 19 June 2025 | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejchem.2025.375684.11600 | ||||
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| Authors | ||||
Mohamed Ghaleb1; Mahmoud Saqr2; Ahmed Youssef 3; Mousa Mohamed1; Mahmoud R Sofy  4
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| 1Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Cairo 11884, Egypt | ||||
| 2Botany and Microbiology Department, Faculty of Science, Al-Azhar University, 11884 Nasr City, Cairo, Egypt | ||||
| 3Packaging Materials, National Research Centre, Cairo, Egypt | ||||
| 4Botany and Microbiology Department, Faculty of Science, Al-Azhar University | ||||
| Abstract | ||||
| Water scarcity is a significant environmental stressor that adversely affects plant development. This research examines the beneficial role of ZnO/CuO nano-composites in alleviating the adverse impacts of water scarcity on improving pea plants. The foliar spraying of ZnO/CuO nano-composite solutions (25 and 50 ppm) enhanced the growth parameters of pea plants cultivated under both optimal circumstances (100% available water) and water stress circumstances (80 and 60% water available). Plants subjected to ZnO/CuO nano-composites (50 ppm) exhibited elevated concentrations of significant osmolytes, including proline, phenol, flavonoid, and tocopherol. They preserved their photosynthetic pigments more effectively than others applied under both stress and non-stress circumstances. Moreover, the external foliar spray of ZnO/CuO nano-composites decreased the levels of OH, H2O2, O2, and lipid peroxidation in pea plants exposed to water deficiency. The treatments enhanced the results, illustrating the advantageous effects of ZnO/CuO nano-composites, at a concentration of 50 ppm in mitigating the detrimental effects of soil water deficiency stress in pea plants. | ||||
| Keywords | ||||
| Antioxidant activity; chlorophyll; Drought; Essential elements; Nanocomposites; Oxidative stress | ||||
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