Selenium alleviates chromium toxicity by preventing oxidative stress in cabbage (Brassica campestris L. ssp. Pekinensis) leaves
The beneficial role of selenium (Se) in alleviation of chromium (Cr)-induced oxidative stress is well established. However, little is known about the underlying mechanism. The impacts of exogenous Se (0.1mg/L) on Cr(1mg/L)-induced oxidative stress and antioxidant systems in leaves of cabbage (Brassi...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Qing, Xuejiao [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2015 |
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| Rechteinformationen: |
Nutzungsrecht: Copyright © 2015 Elsevier Inc. All rights reserved. |
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| Schlagwörter: |
Superoxide Dismutase - metabolism Plant Leaves - growth & development Brassica - growth & development Oxidative Stress - drug effects |
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| Übergeordnetes Werk: |
Enthalten in: Ecotoxicology and environmental safety - Amsterdam : Elsevier, 1977, 114(2015), Seite 179-189 |
|---|---|
| Übergeordnetes Werk: |
volume:114 ; year:2015 ; pages:179-189 |
| Links: |
|---|
| DOI / URN: |
10.1016/j.ecoenv.2015.01.026 |
|---|
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| 245 | 1 | 0 | |a Selenium alleviates chromium toxicity by preventing oxidative stress in cabbage (Brassica campestris L. ssp. Pekinensis) leaves |
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| 520 | |a The beneficial role of selenium (Se) in alleviation of chromium (Cr)-induced oxidative stress is well established. However, little is known about the underlying mechanism. The impacts of exogenous Se (0.1mg/L) on Cr(1mg/L)-induced oxidative stress and antioxidant systems in leaves of cabbage (Brassica campestris L. ssp. Pekinensis) were investigated by using cellular and biochemical approaches. The results showed that supplementation of the medium with Se was effective in reducing Cr-induced increased levels of lipid peroxides and superoxide free radicals (O(-)2(·)), as well as increasing activities of superoxide dismutase (SOD) and peroxidase (POD). Meanwhile, 1mg/L Cr induced loss of plasma membrane integrity, growth inhibition, as well as ultrastructural changes of leaves were significantly reversed due to Se supplementation in the medium. In addition, Se application significantly altered the subcellular distribution of Cr which transported from mitochondria, nucleus and the cell-wall material to the soluble fraction and chloroplasts. However, Se application did no significant alteration of Cr effects on osmotic adjustment accumulating products. The study suggested that Se is able to protect leaves of cabbage against Cr toxicity by alleviation of Cr induced oxidative stress, and re-distribution of Cr in the subcellular of the leaf. Furthermore, free radicals, lipid peroxides, activity of SOD and POD, and subcellular distribution of Cr can be considered the efficient biomarkers to indicate the efficiency of Se to detoxification Cr. | ||
| 540 | |a Nutzungsrecht: Copyright © 2015 Elsevier Inc. All rights reserved. | ||
| 650 | 4 | |a Peroxidase - metabolism | |
| 650 | 4 | |a Superoxides - metabolism | |
| 650 | 4 | |a Superoxide Dismutase - metabolism | |
| 650 | 4 | |a Plant Leaves - ultrastructure | |
| 650 | 4 | |a Brassica - drug effects | |
| 650 | 4 | |a Plant Leaves - growth & development | |
| 650 | 4 | |a Brassica - growth & development | |
| 650 | 4 | |a Plant Leaves - metabolism | |
| 650 | 4 | |a Selenium - pharmacology | |
| 650 | 4 | |a Chromium - toxicity | |
| 650 | 4 | |a Brassica - metabolism | |
| 650 | 4 | |a Antioxidants - metabolism | |
| 650 | 4 | |a Oxidative Stress - drug effects | |
| 650 | 4 | |a Brassica - ultrastructure | |
| 650 | 4 | |a Plant Leaves - drug effects | |
| 650 | 4 | |a Environmental Pollutants - toxicity | |
| 650 | 4 | |a Lipid Peroxides - metabolism | |
| 700 | 1 | |a Zhao, Xiaohu |4 oth | |
| 700 | 1 | |a Hu, Chengxiao |4 oth | |
| 700 | 1 | |a Wang, Peng |4 oth | |
| 700 | 1 | |a Zhang, Ying |4 oth | |
| 700 | 1 | |a Zhang, Xuan |4 oth | |
| 700 | 1 | |a Wang, Pengcheng |4 oth | |
| 700 | 1 | |a Shi, Hanzhi |4 oth | |
| 700 | 1 | |a Jia, Fen |4 oth | |
| 700 | 1 | |a Qu, Chanjuan |4 oth | |
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10.1016/j.ecoenv.2015.01.026 doi PQ20160617 (DE-627)OLC1964314615 (DE-599)GBVOLC1964314615 (PRQ)c1864-db68c9d576715c0fb2c4fb80dfb0d5fb8db22fecebba317b827f4604b9c025f60 (KEY)0029001720150000114000000179seleniumalleviateschromiumtoxicitybypreventingoxid DE-627 ger DE-627 rakwb eng 610 570 DNB 44.13 bkl 44.00 bkl Qing, Xuejiao verfasserin aut Selenium alleviates chromium toxicity by preventing oxidative stress in cabbage (Brassica campestris L. ssp. Pekinensis) leaves 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The beneficial role of selenium (Se) in alleviation of chromium (Cr)-induced oxidative stress is well established. However, little is known about the underlying mechanism. The impacts of exogenous Se (0.1mg/L) on Cr(1mg/L)-induced oxidative stress and antioxidant systems in leaves of cabbage (Brassica campestris L. ssp. Pekinensis) were investigated by using cellular and biochemical approaches. The results showed that supplementation of the medium with Se was effective in reducing Cr-induced increased levels of lipid peroxides and superoxide free radicals (O(-)2(·)), as well as increasing activities of superoxide dismutase (SOD) and peroxidase (POD). Meanwhile, 1mg/L Cr induced loss of plasma membrane integrity, growth inhibition, as well as ultrastructural changes of leaves were significantly reversed due to Se supplementation in the medium. In addition, Se application significantly altered the subcellular distribution of Cr which transported from mitochondria, nucleus and the cell-wall material to the soluble fraction and chloroplasts. However, Se application did no significant alteration of Cr effects on osmotic adjustment accumulating products. The study suggested that Se is able to protect leaves of cabbage against Cr toxicity by alleviation of Cr induced oxidative stress, and re-distribution of Cr in the subcellular of the leaf. Furthermore, free radicals, lipid peroxides, activity of SOD and POD, and subcellular distribution of Cr can be considered the efficient biomarkers to indicate the efficiency of Se to detoxification Cr. Nutzungsrecht: Copyright © 2015 Elsevier Inc. All rights reserved. Peroxidase - metabolism Superoxides - metabolism Superoxide Dismutase - metabolism Plant Leaves - ultrastructure Brassica - drug effects Plant Leaves - growth & development Brassica - growth & development Plant Leaves - metabolism Selenium - pharmacology Chromium - toxicity Brassica - metabolism Antioxidants - metabolism Oxidative Stress - drug effects Brassica - ultrastructure Plant Leaves - drug effects Environmental Pollutants - toxicity Lipid Peroxides - metabolism Zhao, Xiaohu oth Hu, Chengxiao oth Wang, Peng oth Zhang, Ying oth Zhang, Xuan oth Wang, Pengcheng oth Shi, Hanzhi oth Jia, Fen oth Qu, Chanjuan oth Enthalten in Ecotoxicology and environmental safety Amsterdam : Elsevier, 1977 114(2015), Seite 179-189 (DE-627)130055611 (DE-600)436536-7 (DE-576)015593118 0147-6513 nnns volume:114 year:2015 pages:179-189 http://dx.doi.org/10.1016/j.ecoenv.2015.01.026 Volltext http://www.ncbi.nlm.nih.gov/pubmed/25638524 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_21 GBV_ILN_70 GBV_ILN_4219 44.13 AVZ 44.00 AVZ AR 114 2015 179-189 |
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10.1016/j.ecoenv.2015.01.026 doi PQ20160617 (DE-627)OLC1964314615 (DE-599)GBVOLC1964314615 (PRQ)c1864-db68c9d576715c0fb2c4fb80dfb0d5fb8db22fecebba317b827f4604b9c025f60 (KEY)0029001720150000114000000179seleniumalleviateschromiumtoxicitybypreventingoxid DE-627 ger DE-627 rakwb eng 610 570 DNB 44.13 bkl 44.00 bkl Qing, Xuejiao verfasserin aut Selenium alleviates chromium toxicity by preventing oxidative stress in cabbage (Brassica campestris L. ssp. Pekinensis) leaves 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The beneficial role of selenium (Se) in alleviation of chromium (Cr)-induced oxidative stress is well established. However, little is known about the underlying mechanism. The impacts of exogenous Se (0.1mg/L) on Cr(1mg/L)-induced oxidative stress and antioxidant systems in leaves of cabbage (Brassica campestris L. ssp. Pekinensis) were investigated by using cellular and biochemical approaches. The results showed that supplementation of the medium with Se was effective in reducing Cr-induced increased levels of lipid peroxides and superoxide free radicals (O(-)2(·)), as well as increasing activities of superoxide dismutase (SOD) and peroxidase (POD). Meanwhile, 1mg/L Cr induced loss of plasma membrane integrity, growth inhibition, as well as ultrastructural changes of leaves were significantly reversed due to Se supplementation in the medium. In addition, Se application significantly altered the subcellular distribution of Cr which transported from mitochondria, nucleus and the cell-wall material to the soluble fraction and chloroplasts. However, Se application did no significant alteration of Cr effects on osmotic adjustment accumulating products. The study suggested that Se is able to protect leaves of cabbage against Cr toxicity by alleviation of Cr induced oxidative stress, and re-distribution of Cr in the subcellular of the leaf. Furthermore, free radicals, lipid peroxides, activity of SOD and POD, and subcellular distribution of Cr can be considered the efficient biomarkers to indicate the efficiency of Se to detoxification Cr. Nutzungsrecht: Copyright © 2015 Elsevier Inc. All rights reserved. Peroxidase - metabolism Superoxides - metabolism Superoxide Dismutase - metabolism Plant Leaves - ultrastructure Brassica - drug effects Plant Leaves - growth & development Brassica - growth & development Plant Leaves - metabolism Selenium - pharmacology Chromium - toxicity Brassica - metabolism Antioxidants - metabolism Oxidative Stress - drug effects Brassica - ultrastructure Plant Leaves - drug effects Environmental Pollutants - toxicity Lipid Peroxides - metabolism Zhao, Xiaohu oth Hu, Chengxiao oth Wang, Peng oth Zhang, Ying oth Zhang, Xuan oth Wang, Pengcheng oth Shi, Hanzhi oth Jia, Fen oth Qu, Chanjuan oth Enthalten in Ecotoxicology and environmental safety Amsterdam : Elsevier, 1977 114(2015), Seite 179-189 (DE-627)130055611 (DE-600)436536-7 (DE-576)015593118 0147-6513 nnns volume:114 year:2015 pages:179-189 http://dx.doi.org/10.1016/j.ecoenv.2015.01.026 Volltext http://www.ncbi.nlm.nih.gov/pubmed/25638524 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_21 GBV_ILN_70 GBV_ILN_4219 44.13 AVZ 44.00 AVZ AR 114 2015 179-189 |
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10.1016/j.ecoenv.2015.01.026 doi PQ20160617 (DE-627)OLC1964314615 (DE-599)GBVOLC1964314615 (PRQ)c1864-db68c9d576715c0fb2c4fb80dfb0d5fb8db22fecebba317b827f4604b9c025f60 (KEY)0029001720150000114000000179seleniumalleviateschromiumtoxicitybypreventingoxid DE-627 ger DE-627 rakwb eng 610 570 DNB 44.13 bkl 44.00 bkl Qing, Xuejiao verfasserin aut Selenium alleviates chromium toxicity by preventing oxidative stress in cabbage (Brassica campestris L. ssp. Pekinensis) leaves 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The beneficial role of selenium (Se) in alleviation of chromium (Cr)-induced oxidative stress is well established. However, little is known about the underlying mechanism. The impacts of exogenous Se (0.1mg/L) on Cr(1mg/L)-induced oxidative stress and antioxidant systems in leaves of cabbage (Brassica campestris L. ssp. Pekinensis) were investigated by using cellular and biochemical approaches. The results showed that supplementation of the medium with Se was effective in reducing Cr-induced increased levels of lipid peroxides and superoxide free radicals (O(-)2(·)), as well as increasing activities of superoxide dismutase (SOD) and peroxidase (POD). Meanwhile, 1mg/L Cr induced loss of plasma membrane integrity, growth inhibition, as well as ultrastructural changes of leaves were significantly reversed due to Se supplementation in the medium. In addition, Se application significantly altered the subcellular distribution of Cr which transported from mitochondria, nucleus and the cell-wall material to the soluble fraction and chloroplasts. However, Se application did no significant alteration of Cr effects on osmotic adjustment accumulating products. The study suggested that Se is able to protect leaves of cabbage against Cr toxicity by alleviation of Cr induced oxidative stress, and re-distribution of Cr in the subcellular of the leaf. Furthermore, free radicals, lipid peroxides, activity of SOD and POD, and subcellular distribution of Cr can be considered the efficient biomarkers to indicate the efficiency of Se to detoxification Cr. Nutzungsrecht: Copyright © 2015 Elsevier Inc. All rights reserved. Peroxidase - metabolism Superoxides - metabolism Superoxide Dismutase - metabolism Plant Leaves - ultrastructure Brassica - drug effects Plant Leaves - growth & development Brassica - growth & development Plant Leaves - metabolism Selenium - pharmacology Chromium - toxicity Brassica - metabolism Antioxidants - metabolism Oxidative Stress - drug effects Brassica - ultrastructure Plant Leaves - drug effects Environmental Pollutants - toxicity Lipid Peroxides - metabolism Zhao, Xiaohu oth Hu, Chengxiao oth Wang, Peng oth Zhang, Ying oth Zhang, Xuan oth Wang, Pengcheng oth Shi, Hanzhi oth Jia, Fen oth Qu, Chanjuan oth Enthalten in Ecotoxicology and environmental safety Amsterdam : Elsevier, 1977 114(2015), Seite 179-189 (DE-627)130055611 (DE-600)436536-7 (DE-576)015593118 0147-6513 nnns volume:114 year:2015 pages:179-189 http://dx.doi.org/10.1016/j.ecoenv.2015.01.026 Volltext http://www.ncbi.nlm.nih.gov/pubmed/25638524 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_21 GBV_ILN_70 GBV_ILN_4219 44.13 AVZ 44.00 AVZ AR 114 2015 179-189 |
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10.1016/j.ecoenv.2015.01.026 doi PQ20160617 (DE-627)OLC1964314615 (DE-599)GBVOLC1964314615 (PRQ)c1864-db68c9d576715c0fb2c4fb80dfb0d5fb8db22fecebba317b827f4604b9c025f60 (KEY)0029001720150000114000000179seleniumalleviateschromiumtoxicitybypreventingoxid DE-627 ger DE-627 rakwb eng 610 570 DNB 44.13 bkl 44.00 bkl Qing, Xuejiao verfasserin aut Selenium alleviates chromium toxicity by preventing oxidative stress in cabbage (Brassica campestris L. ssp. Pekinensis) leaves 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The beneficial role of selenium (Se) in alleviation of chromium (Cr)-induced oxidative stress is well established. However, little is known about the underlying mechanism. The impacts of exogenous Se (0.1mg/L) on Cr(1mg/L)-induced oxidative stress and antioxidant systems in leaves of cabbage (Brassica campestris L. ssp. Pekinensis) were investigated by using cellular and biochemical approaches. The results showed that supplementation of the medium with Se was effective in reducing Cr-induced increased levels of lipid peroxides and superoxide free radicals (O(-)2(·)), as well as increasing activities of superoxide dismutase (SOD) and peroxidase (POD). Meanwhile, 1mg/L Cr induced loss of plasma membrane integrity, growth inhibition, as well as ultrastructural changes of leaves were significantly reversed due to Se supplementation in the medium. In addition, Se application significantly altered the subcellular distribution of Cr which transported from mitochondria, nucleus and the cell-wall material to the soluble fraction and chloroplasts. However, Se application did no significant alteration of Cr effects on osmotic adjustment accumulating products. The study suggested that Se is able to protect leaves of cabbage against Cr toxicity by alleviation of Cr induced oxidative stress, and re-distribution of Cr in the subcellular of the leaf. Furthermore, free radicals, lipid peroxides, activity of SOD and POD, and subcellular distribution of Cr can be considered the efficient biomarkers to indicate the efficiency of Se to detoxification Cr. Nutzungsrecht: Copyright © 2015 Elsevier Inc. All rights reserved. Peroxidase - metabolism Superoxides - metabolism Superoxide Dismutase - metabolism Plant Leaves - ultrastructure Brassica - drug effects Plant Leaves - growth & development Brassica - growth & development Plant Leaves - metabolism Selenium - pharmacology Chromium - toxicity Brassica - metabolism Antioxidants - metabolism Oxidative Stress - drug effects Brassica - ultrastructure Plant Leaves - drug effects Environmental Pollutants - toxicity Lipid Peroxides - metabolism Zhao, Xiaohu oth Hu, Chengxiao oth Wang, Peng oth Zhang, Ying oth Zhang, Xuan oth Wang, Pengcheng oth Shi, Hanzhi oth Jia, Fen oth Qu, Chanjuan oth Enthalten in Ecotoxicology and environmental safety Amsterdam : Elsevier, 1977 114(2015), Seite 179-189 (DE-627)130055611 (DE-600)436536-7 (DE-576)015593118 0147-6513 nnns volume:114 year:2015 pages:179-189 http://dx.doi.org/10.1016/j.ecoenv.2015.01.026 Volltext http://www.ncbi.nlm.nih.gov/pubmed/25638524 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_21 GBV_ILN_70 GBV_ILN_4219 44.13 AVZ 44.00 AVZ AR 114 2015 179-189 |
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10.1016/j.ecoenv.2015.01.026 doi PQ20160617 (DE-627)OLC1964314615 (DE-599)GBVOLC1964314615 (PRQ)c1864-db68c9d576715c0fb2c4fb80dfb0d5fb8db22fecebba317b827f4604b9c025f60 (KEY)0029001720150000114000000179seleniumalleviateschromiumtoxicitybypreventingoxid DE-627 ger DE-627 rakwb eng 610 570 DNB 44.13 bkl 44.00 bkl Qing, Xuejiao verfasserin aut Selenium alleviates chromium toxicity by preventing oxidative stress in cabbage (Brassica campestris L. ssp. Pekinensis) leaves 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The beneficial role of selenium (Se) in alleviation of chromium (Cr)-induced oxidative stress is well established. However, little is known about the underlying mechanism. The impacts of exogenous Se (0.1mg/L) on Cr(1mg/L)-induced oxidative stress and antioxidant systems in leaves of cabbage (Brassica campestris L. ssp. Pekinensis) were investigated by using cellular and biochemical approaches. The results showed that supplementation of the medium with Se was effective in reducing Cr-induced increased levels of lipid peroxides and superoxide free radicals (O(-)2(·)), as well as increasing activities of superoxide dismutase (SOD) and peroxidase (POD). Meanwhile, 1mg/L Cr induced loss of plasma membrane integrity, growth inhibition, as well as ultrastructural changes of leaves were significantly reversed due to Se supplementation in the medium. In addition, Se application significantly altered the subcellular distribution of Cr which transported from mitochondria, nucleus and the cell-wall material to the soluble fraction and chloroplasts. However, Se application did no significant alteration of Cr effects on osmotic adjustment accumulating products. The study suggested that Se is able to protect leaves of cabbage against Cr toxicity by alleviation of Cr induced oxidative stress, and re-distribution of Cr in the subcellular of the leaf. Furthermore, free radicals, lipid peroxides, activity of SOD and POD, and subcellular distribution of Cr can be considered the efficient biomarkers to indicate the efficiency of Se to detoxification Cr. Nutzungsrecht: Copyright © 2015 Elsevier Inc. All rights reserved. Peroxidase - metabolism Superoxides - metabolism Superoxide Dismutase - metabolism Plant Leaves - ultrastructure Brassica - drug effects Plant Leaves - growth & development Brassica - growth & development Plant Leaves - metabolism Selenium - pharmacology Chromium - toxicity Brassica - metabolism Antioxidants - metabolism Oxidative Stress - drug effects Brassica - ultrastructure Plant Leaves - drug effects Environmental Pollutants - toxicity Lipid Peroxides - metabolism Zhao, Xiaohu oth Hu, Chengxiao oth Wang, Peng oth Zhang, Ying oth Zhang, Xuan oth Wang, Pengcheng oth Shi, Hanzhi oth Jia, Fen oth Qu, Chanjuan oth Enthalten in Ecotoxicology and environmental safety Amsterdam : Elsevier, 1977 114(2015), Seite 179-189 (DE-627)130055611 (DE-600)436536-7 (DE-576)015593118 0147-6513 nnns volume:114 year:2015 pages:179-189 http://dx.doi.org/10.1016/j.ecoenv.2015.01.026 Volltext http://www.ncbi.nlm.nih.gov/pubmed/25638524 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_21 GBV_ILN_70 GBV_ILN_4219 44.13 AVZ 44.00 AVZ AR 114 2015 179-189 |
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selenium alleviates chromium toxicity by preventing oxidative stress in cabbage (brassica campestris l. ssp. pekinensis) leaves |
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Selenium alleviates chromium toxicity by preventing oxidative stress in cabbage (Brassica campestris L. ssp. Pekinensis) leaves |
| abstract |
The beneficial role of selenium (Se) in alleviation of chromium (Cr)-induced oxidative stress is well established. However, little is known about the underlying mechanism. The impacts of exogenous Se (0.1mg/L) on Cr(1mg/L)-induced oxidative stress and antioxidant systems in leaves of cabbage (Brassica campestris L. ssp. Pekinensis) were investigated by using cellular and biochemical approaches. The results showed that supplementation of the medium with Se was effective in reducing Cr-induced increased levels of lipid peroxides and superoxide free radicals (O(-)2(·)), as well as increasing activities of superoxide dismutase (SOD) and peroxidase (POD). Meanwhile, 1mg/L Cr induced loss of plasma membrane integrity, growth inhibition, as well as ultrastructural changes of leaves were significantly reversed due to Se supplementation in the medium. In addition, Se application significantly altered the subcellular distribution of Cr which transported from mitochondria, nucleus and the cell-wall material to the soluble fraction and chloroplasts. However, Se application did no significant alteration of Cr effects on osmotic adjustment accumulating products. The study suggested that Se is able to protect leaves of cabbage against Cr toxicity by alleviation of Cr induced oxidative stress, and re-distribution of Cr in the subcellular of the leaf. Furthermore, free radicals, lipid peroxides, activity of SOD and POD, and subcellular distribution of Cr can be considered the efficient biomarkers to indicate the efficiency of Se to detoxification Cr. |
| abstractGer |
The beneficial role of selenium (Se) in alleviation of chromium (Cr)-induced oxidative stress is well established. However, little is known about the underlying mechanism. The impacts of exogenous Se (0.1mg/L) on Cr(1mg/L)-induced oxidative stress and antioxidant systems in leaves of cabbage (Brassica campestris L. ssp. Pekinensis) were investigated by using cellular and biochemical approaches. The results showed that supplementation of the medium with Se was effective in reducing Cr-induced increased levels of lipid peroxides and superoxide free radicals (O(-)2(·)), as well as increasing activities of superoxide dismutase (SOD) and peroxidase (POD). Meanwhile, 1mg/L Cr induced loss of plasma membrane integrity, growth inhibition, as well as ultrastructural changes of leaves were significantly reversed due to Se supplementation in the medium. In addition, Se application significantly altered the subcellular distribution of Cr which transported from mitochondria, nucleus and the cell-wall material to the soluble fraction and chloroplasts. However, Se application did no significant alteration of Cr effects on osmotic adjustment accumulating products. The study suggested that Se is able to protect leaves of cabbage against Cr toxicity by alleviation of Cr induced oxidative stress, and re-distribution of Cr in the subcellular of the leaf. Furthermore, free radicals, lipid peroxides, activity of SOD and POD, and subcellular distribution of Cr can be considered the efficient biomarkers to indicate the efficiency of Se to detoxification Cr. |
| abstract_unstemmed |
The beneficial role of selenium (Se) in alleviation of chromium (Cr)-induced oxidative stress is well established. However, little is known about the underlying mechanism. The impacts of exogenous Se (0.1mg/L) on Cr(1mg/L)-induced oxidative stress and antioxidant systems in leaves of cabbage (Brassica campestris L. ssp. Pekinensis) were investigated by using cellular and biochemical approaches. The results showed that supplementation of the medium with Se was effective in reducing Cr-induced increased levels of lipid peroxides and superoxide free radicals (O(-)2(·)), as well as increasing activities of superoxide dismutase (SOD) and peroxidase (POD). Meanwhile, 1mg/L Cr induced loss of plasma membrane integrity, growth inhibition, as well as ultrastructural changes of leaves were significantly reversed due to Se supplementation in the medium. In addition, Se application significantly altered the subcellular distribution of Cr which transported from mitochondria, nucleus and the cell-wall material to the soluble fraction and chloroplasts. However, Se application did no significant alteration of Cr effects on osmotic adjustment accumulating products. The study suggested that Se is able to protect leaves of cabbage against Cr toxicity by alleviation of Cr induced oxidative stress, and re-distribution of Cr in the subcellular of the leaf. Furthermore, free radicals, lipid peroxides, activity of SOD and POD, and subcellular distribution of Cr can be considered the efficient biomarkers to indicate the efficiency of Se to detoxification Cr. |
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| title_short |
Selenium alleviates chromium toxicity by preventing oxidative stress in cabbage (Brassica campestris L. ssp. Pekinensis) leaves |
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Zhao, Xiaohu Hu, Chengxiao Wang, Peng Zhang, Ying Zhang, Xuan Wang, Pengcheng Shi, Hanzhi Jia, Fen Qu, Chanjuan |
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The study suggested that Se is able to protect leaves of cabbage against Cr toxicity by alleviation of Cr induced oxidative stress, and re-distribution of Cr in the subcellular of the leaf. Furthermore, free radicals, lipid peroxides, activity of SOD and POD, and subcellular distribution of Cr can be considered the efficient biomarkers to indicate the efficiency of Se to detoxification Cr.</subfield></datafield><datafield tag="540" ind1=" " ind2=" "><subfield code="a">Nutzungsrecht: Copyright © 2015 Elsevier Inc. 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