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Toxic and cytogenetic effects induced in Allium cepa with low concenrations of Cd and 232Th

Evseeva T.I., Maystrenko T.A., Geraskin S.A., Belykh E.C., Kazakova E.V.

 


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232Th (7.7610-7 ) and Cd (0.8910-8 ) in concentrations which do not exceed officially prescribed standards when entering with water do not increase the frequency of chromosome aberrations in comparison with the control. Such concentrations do not cause toxic effects in plants on the levels of tissues and of the whole organism but they do display their activity on the cell level damaging division spindle. Dependence admium concentration effectis not linear for any type of cytogenetical damages. At the concentration of cadmium 0.8910-7 its influence on formation of division spindle is weakened and the frequency of chromosome aberrations is reducing in comparison with the control and with the effects induced at lower concentrations of cadmium in solution (0.8910-8 ). Cadmium in high concentration (5.3410-5 ) causes significant toxic and mutagenic effects.

Tsitologiya i Genetika 2005, vol. 39, no. 5, pp. 73-80

E-mail: tevseeva ib.komisc.ru

Evseeva T.I., Maystrenko T.A., Geraskin S.A., Belykh E.C., Kazakova E.V. Toxic and cytogenetic effects induced in Allium cepa with low concenrations of Cd and 232Th, Tsitol Genet., 2005, vol. 39, no. 5, pp. 73-80.




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