Detoxification of Cr[VI] in Salvinia minima is related to seasonal - induced changes of thiols, phenolics and antioxidative enzymes

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In this study, protein- and non-protein-thiol-containing compounds [THCC], soluble phenolics [SP], proline [Pro], proteins and malondialdehyde [MDA] contents, and antioxidative enzyme activities were analyzed in floating and submerged leaves of Salvinia minima to establish their role against Cr-indu...

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Detalles Bibliográficos
Otros Autores: Prado, Carolina, Pagano, Eduardo Antonio, Prado, Fernando E., Rosa, Mariana
Formato: Artículo
Lenguaje:Inglés
Materias:
CHROMIUM
OXIDATIVE STRESS
PHENOLICS
SALVINIA MINIMA
THIOLS
ACTIVITY PATTERNS
ANTI-OXIDATIVE ENZYMES
BIOCHEMICAL RESPONSE
FIELD CONDITIONS
GUAIACOL PEROXIDASE
MALONDIALDEHYDE
MEASURED PARAMETERS
PLANTS GROWING
SOLUBLE PHENOLICS
SUPEROXIDE DISMUTASES
UNDERLYING MECHANISM
WINTER SEASONS
ALDEHYDES
AMINO ACIDS
CHROMIUM COMPOUNDS
DETOXIFICATION
ENZYMES
OXYGEN
PLANTS [BOTANY]
PROTEINS
PHENOLS
ANTIOXIDANT
CATALASE
MALONALDEHYDE
PHENOL DERIVATIVE
PROLINE
SUPEROXIDE DISMUTASE
THIOL
ALCOHOL
CONCENTRATION [COMPOSITION]
ENVIRONMENTAL STRESS
ENZYME ACTIVITY
FERN
OXIDATION
PHENOLIC COMPOUND
PROTEIN
SEASONAL VARIATION
SUBMERGED VEGETATION
TOXICITY
BIOCHEMISTRY
NONHUMAN
PLANT
PLANT LEAF
SUMMER
WINTER
FERNS
PLANT LEAVES
PLANT PROTEINS
SEASONS
SULFHYDRYL COMPOUNDS
WATER POLLUTANTS, CHEMICAL
Acceso en línea:http://ri.agro.uba.ar/files/intranet/articulo/2012Prado.pdf
LINK AL EDITOR
Aporte de:Registro referencial: Solicitar el recurso aquí
Biblioteca Central (FAUBA) de Universidad de Buenos Aires
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245 1 0 |a Detoxification of Cr[VI] in Salvinia minima is related to seasonal - induced changes of thiols, phenolics and antioxidative enzymes 
520 |a In this study, protein- and non-protein-thiol-containing compounds [THCC], soluble phenolics [SP], proline [Pro], proteins and malondialdehyde [MDA] contents, and antioxidative enzyme activities were analyzed in floating and submerged leaves of Salvinia minima to establish their role against Cr-induced oxidative stress. We analyzed relationships among biochemical responses to different Cr[VI] concentrations to explore underlying mechanisms of Cr detoxification in plants growing under field conditions during summer and winter seasons. Significant increases in THCC were observed in submerged leaves from both seasons, while in floating leaves THCC increased only in summer being decreased in winter. Contrarily SP increased in floating leaves and decreased in submerged ones. MDA increased significantly in winter-leaves, but in summer-leaves remained unchanged. Antioxidative enzymes, i.e. guaiacol peroxidase [G-POD], superoxide dismutase [SOD] and catalase [CAT] showed different activity patterns. G-POD significantly increased in Cr-treated leaves from both seasons, while SOD increased in submerged leaves only, remaining practically unchanged in floating ones. CAT activity increased in floating leaves from both seasons, whereas in submerged ones was decreased or increased. Proteins increased in both leaf types during summer whereas decreased or remained unchanged in winter. Pro increased in winter-submerged leaves only. Results show that seasonal-induced changes occur in all measured parameters. 
653 0 |a CHROMIUM 
653 0 |a OXIDATIVE STRESS 
653 0 |a PHENOLICS 
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653 0 |a THIOLS 
653 0 |a ACTIVITY PATTERNS 
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700 1 |9 67207  |a Prado, Carolina 
700 1 |9 6303  |a Pagano, Eduardo Antonio 
700 1 |9 67208  |a Prado, Fernando E. 
700 1 |9 67202  |a Rosa, Mariana 
773 |t Journal of Hazardous Materials  |g Vol.239-240 (2012), p.355-361 
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900 |a ^aPrado^bC.^tCátedra de Fisiología Vegetal, Facultad de Ciencias Naturales e IML, Universidad Nacional de Tucumán, Miguel Lillo 205, CP 4000, San Miguel de Tucumán, Argentina 
900 |a ^aPagano^bE.^tDepartamento de Biología Aplicada y Alimentos, Facultad de Agronomía, Universidad de Buenos Aires, CP 1417 Buenos Aires, Argentina 
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900 |a OXIDATIVE STRESS 
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900 |a THIOLS 
900 |a ACTIVITY PATTERNS 
900 |a ANTI-OXIDATIVE ENZYMES 
900 |a BIOCHEMICAL RESPONSE 
900 |a FIELD CONDITIONS 
900 |a GUAIACOL PEROXIDASE 
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900 |a SOLUBLE PHENOLICS 
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900 |a UNDERLYING MECHANISM 
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900 |a ALDEHYDES 
900 |a AMINO ACIDS 
900 |a CHROMIUM COMPOUNDS 
900 |a DETOXIFICATION 
900 |a ENZYMES 
900 |a OXYGEN 
900 |a PLANTS [BOTANY] 
900 |a PROTEINS 
900 |a PHENOLS 
900 |a ANTIOXIDANT 
900 |a CATALASE 
900 |a GUAIACOL PEROXIDASE 
900 |a MALONALDEHYDE 
900 |a PHENOL DERIVATIVE 
900 |a PROLINE 
900 |a SUPEROXIDE DISMUTASE 
900 |a THIOL 
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900 |a ENVIRONMENTAL STRESS 
900 |a ENZYME ACTIVITY 
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900 |a PHENOLIC COMPOUND 
900 |a PROTEIN 
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900 |a SEASONS 
900 |a SULFHYDRYL COMPOUNDS 
900 |a SUPEROXIDE DISMUTASE 
900 |a WATER POLLUTANTS, CHEMICAL 
900 |a In this study, protein- and non-protein-thiol-containing compounds [THCC], soluble phenolics [SP], proline [Pro], proteins and malondialdehyde [MDA] contents, and antioxidative enzyme activities were analyzed in floating and submerged leaves of Salvinia minima to establish their role against Cr-induced oxidative stress. We analyzed relationships among biochemical responses to different Cr[VI] concentrations to explore underlying mechanisms of Cr detoxification in plants growing under field conditions during summer and winter seasons. Significant increases in THCC were observed in submerged leaves from both seasons, while in floating leaves THCC increased only in summer being decreased in winter. Contrarily SP increased in floating leaves and decreased in submerged ones. MDA increased significantly in winter-leaves, but in summer-leaves remained unchanged. Antioxidative enzymes, i.e. guaiacol peroxidase [G-POD], superoxide dismutase [SOD] and catalase [CAT] showed different activity patterns. G-POD significantly increased in Cr-treated leaves from both seasons, while SOD increased in submerged leaves only, remaining practically unchanged in floating ones. CAT activity increased in floating leaves from both seasons, whereas in submerged ones was decreased or increased. Proteins increased in both leaf types during summer whereas decreased or remained unchanged in winter. Pro increased in winter-submerged leaves only. Results show that seasonal-induced changes occur in all measured parameters. 
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