BIOACCUMULATION AND TOXICITY EVALUATION OF CADMIUM AND MERCURY IN LLANERO GRASS (<i>Brachiaria dictyoneura</i>)
The transfer of mercury and cadmium in Brachiaria dictyoneura was studied in terms of bioaccumulative capacity and as a bioindicator. During the evaluation cadmium in B. dictyoneura show a decrease of 65%. The toxicity of cadmium was correlated with the consecutive accumulation of the cation during...
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Autores principales: | , , |
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Formato: | article |
Lenguaje: | EN |
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Universidad de Antioquia
2010
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Materias: | |
Acceso en línea: | https://doaj.org/article/f6c1c9821fc04108a1f7408d5dd07905 |
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Sumario: | The transfer of mercury and cadmium in Brachiaria dictyoneura was studied in terms of bioaccumulative
capacity and as a bioindicator. During the evaluation cadmium in B. dictyoneura show a decrease of 65%.
The toxicity of cadmium was correlated with the consecutive accumulation of the cation during the
monitoring time. With respect to mercury, a decrease in cation content in the plant was observed 30
days after exposure, presenting possible phytoreductión of mercury ion Hg2+ to Hg° in B. dictyoneura
and subsequent evaporation. The tolerance and accumulator capacity of B. dictyoneura could be used for
phytoremediation of sites co-contaminated with Cd and Hg. |
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