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Artículo

Physiological and biochemical responses of Eichhornia crassipes exposed to Cr (III)

González, César IvánIcon ; Maine, Maria AlejandraIcon ; Cazenave, JimenaIcon ; Sanchez, Gabriela Cristina; Benavides, Maria PatriciaIcon
Fecha de publicación: 03/2015
Editorial: Springer Verlag Berlín
Revista: Environmental Science And Pollution Research
ISSN: 0944-1344
e-ISSN: 1614-7499
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Bioquímica y Biología Molecular

Resumen

The effect of exposure of Eichhornia crassipes to Cr (III) was assessed by measuring changes in photosynthetic pigments, malondialdehyde, superoxide dismutase, glutathione reductase, catalase, and guaiacol peroxidase activities, as well as Cr concentration in tissues. Cr concentration in roots was significantly higher than in aerial parts and increased with Cr concentration in water. Photosynthetic pigments increased significantly, whereas the activities of antioxidant enzymes varied differently in plant tissues. Low Cr concentrations induced a rapid response of E. crassipes during short-term exposure, implying that the antioxidant system conferred redox homeostasis. Results showed that Cr (III) was more toxic at the two highest concentrations and long-term exposure, while it was not harmful but beneficial at the two lowest concentrations and short-term exposure. This work concludes that E. crassipes was able to grow under Cr (III) stress by protecting itself with an increase in the activity of its antioxidant system.
Palabras clave: Oxidative Stress , Hormesis , Antioxidant Enzyme Defense System , Macrophyte , Bioaccumulation , Lipid Peroxidation
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/18091
URL: https://link.springer.com/article/10.1007%2Fs11356-014-3558-4
DOI: http://dx.doi.org/10.1007/s11356-014-3558-4
Colecciones
Articulos(CCT - SANTA FE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - SANTA FE
Articulos(INALI)
Articulos de INST.NAC.DE LIMNOLOGIA (I)
Articulos(IQUIFIB)
Articulos de INST.DE QUIMICA Y FISICO-QUIMICA BIOLOGICAS "PROF. ALEJANDRO C. PALADINI"
Citación
González, César Iván; Maine, Maria Alejandra; Cazenave, Jimena; Sanchez, Gabriela Cristina; Benavides, Maria Patricia; Physiological and biochemical responses of Eichhornia crassipes exposed to Cr (III); Springer Verlag Berlín; Environmental Science And Pollution Research; 22; 5; 3-2015; 3739-3747
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