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Título : | Prospects in cadmium-contaminated water : Management using free-living Cyanobacteria (Oscillatoria sp.) | Autor : | Carralero Bon, Iván Salvatierra, Lucas Matías Lario, Luciana Daniela Morató Farreras, Jordi Pérez, Leonardo Martín |
Palabras clave : | CADMIO; CONTAMINACION DEL AGUA; ECOLOGIA; TECNOLOGIA; CIANOBACTERIAS | Fecha de publicación : | 2021 | Editorial : | Molecular Diversity Preservation International | Cita : | Carralero Bon, I., Salvatierra, L.M., Lario, L.D., Morató Farreras, J., Pérez, L.M. Prospects in cadmium-contaminated water : Management using free-living Cyanobacteria (Oscillatoria sp.)[en línea]. Water. 2021, 13(542). Doi: 10.3390/w13040542. Disponible en: https://repositorio.uca.edu.ar/handle/123456789/11473 | Proyecto: | Estudio de los bioprocesos involucrados en la eliminación de contaminantes químicos en diferentes sistemas biológicos | Resumen : | Abstract: In this study, the removal of cadmium (Cd) by free-living Oscillatoria sp. was studied. Our results showed that maximal Cd removal efficiency (~60%) by the cyanobacterial culture was achieved within 12–24 h in the presence of 5.0 or 25.0 mg/L of Cd. The mechanisms underlying this phenomenon were explored by elemental analysis and FTIR-ATR spectroscopy. It was found that metal adsorption by negatively charged functional groups in the cyanobacterial biomass was the main mechanism used by Oscillatoria sp. to remove metal from the aqueous medium, followed by Cd bioaccumulation into living cells. Additionally, Cd-exposed microalgae showed increased oxidative stress (MDA formation), a decreased dehydrogenase activity, a higher amount of soluble carbohydrates and a decreased total carotenoid concentration, as compared to the control cells. | URI : | https://repositorio.uca.edu.ar/handle/123456789/11473 | ISSN : | 2073-4441 | Disciplina: | INGENIERIA AMBIENTAL | DOI: | 10.3390/w13040542 | Derechos: | Acceso abierto |
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