Cytotoxicity and Mutagenic Effects of Soil Radionuclides on Some Black Sand Plant Species

Soliman, M. S. A., A. K. Hegazy, S. K. Goda, M. H. Emam, and A. A. Al-Atar, "Cytotoxicity and Mutagenic Effects of Soil Radionuclides on Some Black Sand Plant Species", Journal of Mediterranean Ecology, vol. 11, pp. 5-20, 2011.


Three plant species (CakilemaritimaScop., Senecioglaucus L. and RumexpictusForssk) were selected from three blacksand habitats along the Mediterranean coast in Egypt for cytogenetic studies and to recognizes the mechanism by whichplants withstand high concentration of the absorbed radionuclides through determination of the electrophoratic bandingpattern of protein and amino acid profiles. The study showed that exposure of the study plant species to soil radionuclidescauses decrease in the percentage of prophase and prophase to metaphase ratio, while the percentage of anaphase and telophaseincreases with soil radioactivity. The results revealed chromosomal aberrations, e.g., C-metaphase, star metaphase,chromosome stickiness at metaphase stage, C-anaphase and chromosomal breaks at the different mitotic stages with fluctuationin the index of mitotic phases. High radionuclide content of plants causes alterations in the bands relative mobility andintensities, expression of new proteins and suppression of some proteins.



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