Cadmium-Zinc interactions in a hydroponic system using Ceratophyllum demersum L.: adaptive ecophysiology, biochemistry and molecular toxicology
2005
Aravind, Parameswaran(University of Hyderabad School of Life Sciences Department of Plant Sciences) | Prasad, Majeti Narasimba Vara
English. The interaction between an essential micronutrient, Zn and a toxic non-essential element, Cd has been comprehensively reviewed based on our experiments conducted with Ceratophyllum demersum L. in a hydroponic system. Since Cd and Zn belong to the group IIB transition elements and show similarities in chemistry, geochemistry and environmental properties, it would be one of the elemental pairs of choice to investigate metal-metal interactions. Evidence in support of the protective role of Zn against Cd toxicity in Ceratophyllum demersum L. is presented in this review. Based on our experimental results, we conclude that the antioxidant properties of Zn play an important role in counteracting Cd toxicity.
Show more [+] Less [-]Portuguese. A interação entre um micronutriente essencial, Zn, e um elemento tóxico não essencial, Cd, é amplamente revisada com base em nossos experimentos com Ceratophyllum demersum L. em um sistema hidropônico. Desde que Cd e Zn pertencem ao mesmo grupo IIB de elementos de transição e mostram semelhanças nas propriedades química, geoquímica e ambiental, poderiam ser os elementos de escolha para investigar as interações metal-metal. Com base em nossos resultados experimentais, apresentamos, nesta revisão, evidências a favor de um papel de proteção antioxidativo de Zn contra a toxidade de Cd em Ceratophyllum demersum L.
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