Abstract

REGALADO RODRIGUEZ, Ivet et al. Anatomical changes in the species Cynodon nlemfuensis Vanderhyst in soils contaminated by heavy metals. Rev Cie Téc Agr [online]. 2014, vol.23, n.4, pp. 37-42. ISSN 2071-0054.

This investigation is about the study of the affectations tissues, caused by the accumulation of high concentrations of heavy metals (Fe, Ni, Cu, Pb, Co, Mn, and Zn) in the vegetative organs of Cynodon nlemfuensis Vanderhyst. The studied field was at Ceramica Blanca “Adalberto Vidal” in San José de las Lajas municipality. It was determined the levels of concentration of total metals in the vegetative organs of the plant, it was verified that the metals are transported by air parts in a smaller part of the root, that is related with the transfer capacity that present this plant and to it possible use in the Phytoremediation techniques. The studies submicroscopic carried out between plants of non polluted (A) soil and plants of polluted soil with heavy metals (B) showed that the high concentrations of heavy metals in the vegetables tissues, can bring anatomical changes in the epidermal tissues, parenchyma and vascular, xylem and phloem, that are expressed by the decrease intercellular, the loss in the shape and size of the cells and compactation of the tissues with loss of the intercellular spaces.

Keywords : polluted soil; vegetables tissues; phytoremediation.

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