Synergistic application of melatonin and silicon oxide nanoparticles modulates reactive oxygen species generation and the antioxidant defense system: a strategy for cadmium tolerance in rice

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dc.authoridFaisal, Mohammad/0000-0002-8176-1527
dc.contributor.authorFaisal, Mohammad
dc.contributor.authorFaizan, Mohammad
dc.contributor.authorSoysal, Sipan
dc.contributor.authorAlatar, Abdulrahman A.
dc.date.accessioned2024-12-24T19:31:08Z
dc.date.available2024-12-24T19:31:08Z
dc.date.issued2024
dc.departmentSiirt Üniversitesi
dc.description.abstractUnfavorable environmental conditions pose a major barrier to sustainable agriculture. Among the various innovative strategies developed to protect plants from abiotic stress, the use of phytohormones and nanoparticles as stress mitigators has emerged as one of the most important and promising approaches. The objective of this study was to observe the protective role of melatonin (Mel) and silicon oxide nanoparticles (SiO-NPs) in rice (Oryza sativa L.) seedlings under cadmium (Cd) stress. Rice seedlings have reduced growth and phytochemical attributes when grown in Cd-contaminated (0.8 mM) pots. Seedlings under Cd stress had 38% less shoot length (SL), 53% total soluble sugar (TSS) and 57% protein content. However, superoxide dismutase (SOD), hydrogen peroxide (H2O2) and malondialdehyde (MDA) increased by 51%, 37% and 34%, respectively, under Cd stress. Beside this, activities such as peroxidase (POX) also elevated in the plants subjected with Cd-stress. In contrast, Mel (100 mu m) as foliar spray and SiO-NPs (100 mg/L) as root dipping reduced oxidative stress in rice seedlings under Cd stress by reducing reactive oxygen species (ROS) generation. Furthermore, the application of Mel and/or SiO-NPs significantly increased the activity of antioxidative enzymes that scavenge ROS. The combined application of SiO-NPs and Mel increased growth, gas exchange and photosynthetic attributes, chlorophyll value, and protein content. It causes alleviation in the activity of SOD, CAT and POX by 73%, 62% and 65%, respectively. Overall, this study findings show that Mel and/or SiO-NPs can potentially protect the rice crop against oxidative damage under Cd stress.
dc.description.sponsorshipKing Saud University10.13039/501100002383 [RSP-2024R86]; King Saud University, Riyadh, Saudi Arabia
dc.description.sponsorshipThe authors are thankful to the Researchers Supporting Project (RSP-2024R86), King Saud University, Riyadh, Saudi Arabia for financial support.
dc.identifier.doi10.3389/fpls.2024.1484600
dc.identifier.issn1664-462X
dc.identifier.pmid39474214
dc.identifier.scopus2-s2.0-85208614835
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.3389/fpls.2024.1484600
dc.identifier.urihttps://hdl.handle.net/20.500.12604/7825
dc.identifier.volume15
dc.identifier.wosWOS:001343804500001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherFrontiers Media Sa
dc.relation.ispartofFrontiers in Plant Science
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241222
dc.subjectabiotic stress
dc.subjectoxidative damage
dc.subjectprotein content
dc.subjectsuperoxide dismutase
dc.subjecttotal free amino acids
dc.subjecttotal soluble sugar
dc.titleSynergistic application of melatonin and silicon oxide nanoparticles modulates reactive oxygen species generation and the antioxidant defense system: a strategy for cadmium tolerance in rice
dc.typeArticle

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