Genotoxic quality of water and soil in the region of Teboulba - Souguir, Dalila;Hachicha, Mohamed
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This study is conducted in the region of Teboulba in order to assess the genotoxic quality of water from 5 wells used in irrigation. This evaluation also concerned the soils irrigated by these waters through their leachates. The physicochemical analyses revealed basic waters with a strong to excessive salinity (3.60 - 7.2 dS/m) dominated by Na+ and Cl- and an excess of Cd, Cr, Fe, Ni and Pb contents of the NT19-04 standard. The application of the Vicia-micronucleus Test did not result in a significant change in growth parameters and membrane integrity. However, a remarkable damage of the cell…mehr

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Produktbeschreibung
This study is conducted in the region of Teboulba in order to assess the genotoxic quality of water from 5 wells used in irrigation. This evaluation also concerned the soils irrigated by these waters through their leachates. The physicochemical analyses revealed basic waters with a strong to excessive salinity (3.60 - 7.2 dS/m) dominated by Na+ and Cl- and an excess of Cd, Cr, Fe, Ni and Pb contents of the NT19-04 standard. The application of the Vicia-micronucleus Test did not result in a significant change in growth parameters and membrane integrity. However, a remarkable damage of the cell genome was noted through a significant decrease of the cell division and an appearance of micronucleated cells. The same effects were also observed in the leachates from well water irrigated soils. These leachates have a low salinity (0.21-1.82 dS/m). The different treatments used resulted in several aberrations affecting the structure and number of chromosomes. Other abnormalities includingpolyploidy, dividing micronucleated cells and nuclear aberrations were also observed.
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Autorenporträt
Dalila Souguir, ricercatrice presso l'Institut National de Recherches en Génie Rural, Eaux et Forêts-Tunisie e membro del laboratorio "Valorisation des Eaux Non-Conventionnelles". È interessata agli effetti dell'irrigazione con acqua salata/acqua di scarico trattata sulla pianta, sul suolo e sulla falda.