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Effect of Cu(II), Pb(II), Mg(II) ions on gamma-irradiated Spirulina platensis

Influence of metal ions Cu(II), Pb(II), Mg(II) on Spirulina platensis cells were studied after three times Cs137 gamma irradiation discrete dose (in each case 20 kGy irradiation dose) and recultivation using UV-VIS spectrometry. It was shown, that metal ions Mg(II), Pb(II), Cu(II) differ from each other in terms of interaction efficiency. In particular, Mg(II) ions act as a stimulant to increase content for Spirulina platensis components after several times with discrete doses of radiation and cultivation . For Pb (II) ions, the change in absorption intensity at low concentrations slowly decreases, and then with an increase in the Pb (II) concentration, the absorption intensity increases for C-phycocyanin, Ch1a, which implies an increase in the quantity content of Spirulina platensis constituents. Such effect for Cu(II) not observed.