Silicon nanoparticles alleviate cadmium toxicity in rice (Oryza sativa L.) by modulating the nutritional profile and triggering stress-responsive genetic mechanisms
Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved..
This study investigated the physiological and molecular responses of rice genotype '9311' to Cd stress and the mitigating effects of silicon oxide nanoparticles (SiO NPs). Cd exposure severely hindered plant growth, chlorophyll content, photosynthesis, and Cd accumulation. However, SiO NPs supplementation, particularly the SiONP100 treatment, significantly alleviated Cd-induced toxicity, mitigating the adverse effects on plant growth while maintaining chlorophyll content and photosynthetic attributes. The SiONP100 treatment also reduced Cd accumulation, indicating a preference for Si uptake in genotype 9311. Complex interactions among Cd, Si, Mg, Ca, and K were uncovered, with fluctuations in MDA and H2O2 contents. Distinct morphological changes in stomatal aperture and mesophyll cell structures were observed, including changes in starch granules, grana thylakoids, and osmophilic plastoglobuli. Moreover, following SiONP100 supplementation, genotype 9311 increased peroxidase, superoxide dismutase, and catalase activities by 56%, 44%, and 53% in shoots and 62%, 49%, and 65% in roots, respectively, indicating a robust defense mechanism against Cd stress. Notably, OsNramp5, OsHMA3, OsSOD-Cu/Zn, OsCATA, OsCATB, and OsAPX1 showed significant expression after SiO NPs treatment, suggesting potential Cd translocation within rice tissues. Overall, SiO NPs supplementation holds promise for enhancing Cd tolerance in rice plants while maintaining essential physiological functions.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:268 |
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| Enthalten in: |
Ecotoxicology and environmental safety - 268(2023) vom: 08. Dez., Seite 115699 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Jalil, Sanaullah [VerfasserIn] |
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| Links: |
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| Themen: |
00BH33GNGH |
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| Anmerkungen: |
Date Completed 04.12.2023 Date Revised 04.12.2023 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.ecoenv.2023.115699 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM364708859 |
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| 520 | |a Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved. | ||
| 520 | |a This study investigated the physiological and molecular responses of rice genotype '9311' to Cd stress and the mitigating effects of silicon oxide nanoparticles (SiO NPs). Cd exposure severely hindered plant growth, chlorophyll content, photosynthesis, and Cd accumulation. However, SiO NPs supplementation, particularly the SiONP100 treatment, significantly alleviated Cd-induced toxicity, mitigating the adverse effects on plant growth while maintaining chlorophyll content and photosynthetic attributes. The SiONP100 treatment also reduced Cd accumulation, indicating a preference for Si uptake in genotype 9311. Complex interactions among Cd, Si, Mg, Ca, and K were uncovered, with fluctuations in MDA and H2O2 contents. Distinct morphological changes in stomatal aperture and mesophyll cell structures were observed, including changes in starch granules, grana thylakoids, and osmophilic plastoglobuli. Moreover, following SiONP100 supplementation, genotype 9311 increased peroxidase, superoxide dismutase, and catalase activities by 56%, 44%, and 53% in shoots and 62%, 49%, and 65% in roots, respectively, indicating a robust defense mechanism against Cd stress. Notably, OsNramp5, OsHMA3, OsSOD-Cu/Zn, OsCATA, OsCATB, and OsAPX1 showed significant expression after SiO NPs treatment, suggesting potential Cd translocation within rice tissues. Overall, SiO NPs supplementation holds promise for enhancing Cd tolerance in rice plants while maintaining essential physiological functions | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Antioxidants | |
| 650 | 4 | |a Cadmium | |
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| 700 | 1 | |a Al-Huqail, Arwa Abdulkreem |e verfasserin |4 aut | |
| 700 | 1 | |a Ali, Baber |e verfasserin |4 aut | |
| 700 | 1 | |a Al-Qthanin, Rahmah N |e verfasserin |4 aut | |
| 700 | 1 | |a Asad, Muhammad A U |e verfasserin |4 aut | |
| 700 | 1 | |a Eweda, Mohamed A |e verfasserin |4 aut | |
| 700 | 1 | |a Zulfiqar, Faisal |e verfasserin |4 aut | |
| 700 | 1 | |a Onursal, Nilgün |e verfasserin |4 aut | |
| 700 | 1 | |a Masood, Hafiza Ayesha |e verfasserin |4 aut | |
| 700 | 1 | |a Yong, Jean Wan Hong |e verfasserin |4 aut | |
| 700 | 1 | |a Jin, Xiaoli |e verfasserin |4 aut | |
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