Cerium oxide nanoparticles enhance rice productivity by modulating nitric oxide signaling, carbon metabolism, and potassium homeostasis under chromium-induced environmental stress
Haider Sultan, Mukerrem Atalay Oral, Gulsah Bengisu, Resat Esgici, Mohammad Faizan, Abdulrahman A. Alatar, Changli Zeng, Mohammad Faisal
TL;DR
Cerium oxide nanoparticles help rice plants grow better under chromium stress by reducing oxidative damage and improving metabolism.
Contribution
This study demonstrates the novel use of cerium dioxide nanoparticles to mitigate chromium toxicity in rice through multiple physiological mechanisms.
Findings
Chromium stress increased oxidative markers like TBARS, H2O2, and methylglyoxal by 49-67%.
CeO2 NPs reduced oxidative stress and boosted antioxidant enzyme activity in rice plants.
CeO2 NPs improved rice growth, biomass, and key metabolic processes like starch and chlorophyll levels.
Abstract
Chromium (Cr) contamination in agricultural soils represents a serious challenge to rice productivity and food security, underscoring the need for innovative approaches to improve Cr-tolerance and alleviate its detrimental effects on plant growth and development. Recently, nanotechnology has been increasingly used to improve the tolerance of plants exposed to metal stress. In view of the beneficial roles of nanoparticles in mitigating metal stress in plants, this study was conducted to assess the effectiveness of cerium dioxide nanoparticles (CeO2 NPs) in alleviating Cr-induced toxicity in rice plants. Chromium stress (100 µM) and CeO2 NPs (100 ppm) were applied at the seed stage by soaking the seeds in their respective solutions for 12 h prior to sowing. Chromium stress markedly increased the contents of thiobarbituric acid-reactive substances (TBARS) by 67%, hydrogen peroxide (H2O2)…
Genes, proteins, chemicals, diseases, species, mutations and cell lines named across the full text — each resolved to its canonical identifier and authoritative record.
Click any figure to enlarge with its caption.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsNanoparticles: synthesis and applications · Plant Stress Responses and Tolerance · Advanced Nanomaterials in Catalysis