Foliar application of nanoceria attenuated cadmium stress in okra (Abelmoschus esculentus L.)
Journal of Hazardous Materials, ISSN: 0304-3894, Vol: 445, Page: 130567
2023
- 18Citations
- 15Captures
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Metrics Details
- Citations18
- Citation Indexes18
- 18
- Captures15
- Readers15
- 15
Article Description
Foliar application of nanoparticles (NPs) as a means for ameliorating abiotic stress is increasingly employed in crop production. In this study, the potential of CeO 2 -NPs as stress suppressants for cadmium (Cd)-stressed okra ( Abelmoschus esculentus ) plants was investigated, using two cycles of foliar application of CeO 2 -NPs at 200, 400, and 600 mg/l. Compared to untreated stressed plants, Cd-stressed plants treated with CeO 2 -NPs presented higher pigments (chlorophyll a and carotenoids). In contrast, foliar applications did not alter Cd root uptake and leaf bioaccumulation. Foliar CeO 2 -NPs application modulated stress enzymes (APX, SOD, and GPx) in both roots and leaves of Cd-stressed plants, and led to decreases in Cd toxicity in plant’s tissues. In addition, foliar application of CeO 2 -NPs in Cd-stressed okra plants decreased fruit Cd contents, and improved fruit mineral elements and bioactive compounds. The infrared spectroscopic analysis of fruit tissues showed that foliar-applied CeO 2 -NPs treatments did not induce chemical changes but induced conformational changes in fruit macromolecules. Additionally, CeO 2 -NPs applications did not alter the eating quality indicator (Mg/K ratio) of okra fruits. Conclusively, the present study demonstrated that foliar application of CeO 2 -NPs has the potential to ameliorate Cd toxicity in tissues and improve fruits of okra plants.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0304389422023615; http://dx.doi.org/10.1016/j.jhazmat.2022.130567; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85145683082&origin=inward; http://www.ncbi.nlm.nih.gov/pubmed/37055974; https://linkinghub.elsevier.com/retrieve/pii/S0304389422023615; https://dx.doi.org/10.1016/j.jhazmat.2022.130567
Elsevier BV
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