[Regeneration of hematopoiesis after local irradiation].

During local irradiation of the hind limb, the depleted hemopoietic tissue develops lymphocytosis which is largely due to the accumulation of thymic lymphocytes. T cells produce no effect on proliferative activity of hemopoietic precursor cells capable of colony formation on the spleens of lethally irradiated recipients. At the same time they stimulate the proliferation of erythroid cells, thereby accelerating the regeneration of erythropoiesis.