BIOACCUMULATION AND TOXICITY EVALUATION OF CADMIUM AND MERCURY IN LLANERO GRASS (Brachiaria dictyoneura)

  • Catalina ARROYAVE Q. Grupo Interdisciplinario de Estudios Moleculares (GIEM). Instituto de Química. Facultad de Ciencias Exactas y Naturales. Universidad de antioquia
  • Pedronel ARAQUE M Grupo Interdisciplinario de Estudios Moleculares (GIEM). Instituto de Química. Facultad de Ciencias Exactas y Naturales. Universidad de antioquia
  • Carlos A. PELAEZ J. Grupo Interdisciplinario de Estudios Moleculares (GIEM). Instituto de Química. Facultad de Ciencias Exactas y Naturales. Universidad de antioquia
Keywords: heavy metals, transfer, phytotoxicity, phytoreductión, phytoremediation.

Abstract

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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Published
2010-03-26
How to Cite
ARROYAVE Q. C., ARAQUE M P., & PELAEZ J. C. A. (2010). BIOACCUMULATION AND TOXICITY EVALUATION OF CADMIUM AND MERCURY IN LLANERO GRASS (<i>Brachiaria dictyoneura</i&gt;). Vitae, 17(1), 45-49. Retrieved from https://revistas.udea.edu.co/index.php/vitae/article/view/4973
Section
Pharmacology and Toxicology