Effects of Autogamy In Paramecium Tetraurelia On Catalase Activity and On Radiosensitivity to Natural Ionizing Radiations |
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| Authors: | F. CROUTE D. DUPOUY J. P. CHARLEY J. P. SOLEILHAVOUP H. PLANEL |
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| Affiliation: | Laboratorie de Biologie Médicale, Facultéde Médecine de Purpan, 37, Allées Jules Guesde, 31 000 Toulouse, France |
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| Abstract: | SYNOPSIS 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. |
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| Keywords: | Paramecium tetraurelia variety 4 mating type VII autogamy catalase activity radiosensitivity radiosensitivity natural ionizing radiation. |
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