Survey of lanthanoids in plants from a tropical region
by Elvis Joacir De Franca, Elisabete A. De Nadai Fernandes, Christian Turra, Marcio A. Bacchi, Camila Elias, Fabio Sileno Tagliaferro, Cassio Franco Moreira, Andreza Portella Ribeiro, Rubens Cesar Lopes Figueira
International Journal of Environment and Health (IJENVH), Vol. 5, No. 1/2, 2011

Abstract: Several anthropogenic sources may provide lanthanoids (La, Ce, Nd, Sm, Eu, Tb and Yb) to the agricultural and forestry landscapes. Because little information is available on the distribution of these chemical elements in Brazilian tropical ecosystems, this work focuses on the survey in leaves of diverse plant species (native trees, epiphytes and crops) from different ecosystems. Soil under crown projection was also analysed, thereby estimating the influence of its chemical composition on accumulation in leaves. The degree of lanthanoids accumulation varied substantially even for species growing in the same habitat. The most accumulator species, Alsophila sternbergii, presented the typical distribution pattern for lanthanoids, different from Pachystroma longifolium, a native species from the urban fragment, and the cultivated Citrus sp., in which the altered patterns revealed lanthanum enrichment in spite of cerium depletion in the leaves.

Online publication date: Fri, 22-Apr-2011

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