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DOI: | 10.1111/j.1744-7348.2010.00387.x |
Web URL(s): | http://onlinelibrary.wiley.com/doi/10.1111/j.1744-7348.2010.00387.x/full Last checked: 01/31/2014 Access conditions: Item is within a limited-access website http://onlinelibrary.wiley.com/doi/10.1111/j.1744-7348.2010.00387.x/pdf Last checked: 01/31/2014 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Cartes, P.;
Jara, A. A.;
Pinilla, L.;
Rosas, A.;
Mora, M. L. |
Author Affiliation: | Cartes, Jara, Pinilla and Mora: Scientific and Technological Bioresource Nucleus; Cartes, Jara and Mora: Departamento de Ciencias Químicas, Universidad de La Frontera, Temuco, ; Rosas: Departamento de Suelos y Recursos Naturales, Facultad de Agronomía, Universidad de Concepción, Chillán, Chile |
Title: | Selenium improves the antioxidant ability against aluminum-induced oxidative stress in ryegrass roots |
Source: | Annals of Applied Biology. Vol. 156, No. 2, March 2010, p. 297-307. |
Publishing Information: | London: Cambridge University Press. |
# of Pages: | 11 |
Related Web URL: | http://onlinelibrary.wiley.com/doi/10.1111/j.1744-7348.2010.00387.x/abstract Last checked: 01/31/2014 Notes: Abstract only |
Keywords: | TIC Keywords: Aluminum; Antioxidants; Chemical analysis; Enzymes; Lolium; Microbiological soil analysis; Root length; Selenium; Stress
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Abstract/Contents: | "We investigated the role of selenium (Se) against aluminium (Al) stress in ryegrass by evaluating the growth responses and the antioxidant properties of plants cultured hydroponically with Al (0 or 0.2 mM) and selenite (0-10 μMSe). Al addition significantly reduced the yield and length of shoots and roots, and most Al was accumulated in the roots. Al also enhanced lipid peroxidation and activated the peroxidase (POD), ascorbate peroxidase (APX) and superoxide dismutase (SOD) enzymes in the roots. Se application up to 2 μM improved root growth and steadily decreased thiobarbituric acid reactive substances (TBARS) accumulation in plants treated with 0 and 0.2 mM Al. However, above 2 μM, Se induced stress in plants grown with or without Al. Significant changes in antioxidant enzymes activities were also found as a result of the added Se. At low Se addition levels POD was activated, whereas APX activity decreased irrespective of added Al. Furthermore, Se supplied up to 2 μM greatly decreased root SOD activity in Al-stressed plants. Our study provides evidence that Se alleviated the Al-induced oxidative stress in ryegrass roots through the enhancement of the spontaneous dismutation of superoxide radicals and the subsequent activation of POD enzyme." |
Language: | English |
References: | 53 |
Note: | Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Cartes, P., A. A. Jara, L. Pinilla, A. Rosas, and M. L. Mora. 2010. Selenium improves the antioxidant ability against aluminum-induced oxidative stress in ryegrass roots. Ann. Appl. Biol. 156(2):p. 297-307. |
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| DOI: 10.1111/j.1744-7348.2010.00387.x |
| Web URL(s): http://onlinelibrary.wiley.com/doi/10.1111/j.1744-7348.2010.00387.x/full Last checked: 01/31/2014 Access conditions: Item is within a limited-access website http://onlinelibrary.wiley.com/doi/10.1111/j.1744-7348.2010.00387.x/pdf Last checked: 01/31/2014 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: b2209338 |
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