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[Effect of x-irradiation on amoebocytopoiesis in the snail].

The [3H]thymidine radioautography technique was used to study the objective laws of the renewal of blood cells (amoebocytes) of the edible snail (Helix pomatia) after X-radiation. Cells which are the precursors of amoebocytes actively proliferating beyond the limits of peripheral blood have been shown to possess a high radiosensitivity. The action of lethal doses of radiation (200-500 Gr) suppresses their proliferation and leads to the irreversible amoebocytopenia. Radioresistant cells lost the ability to the proliferation circulate in the peripheral blood.