Ref ID : 3854
F. Croute, D. Dupouy, J.P. Charley, J.P. Soleilhavoup, and H. Planel; Effects of Autogamy in Paramecium tetraurelia on Catalase Activity and on Radiosensitivity to Natural Ionizing Radiations. J.Protozool. 27(1):132-135, 1980
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Catalase activity of Paramecium tetraurelia decreased during autogamy and recovered to normal 5 days later. Autogamy also caused changes in the ciliate's sensitivity to natural ionizing radiations-the decrease in cell growth rate previously described in shielded cultures did not occur when autogamous cells were used. Maximum effect of shielding was observed in 11-day-old postautogamous cells. The role of the catalase in the mechanism of natural irradiation effect is discussed.