Effect of x-ray irradiation on the physiological reactions of dermal melanophores in tadpoles of the common frog

The effect of X-ray irradiation (700 R) on the physiological reactions of the dermal melanophores in Rana temporaria L. tadpoles of 20-22d stages of development has been studied. It has been shown that the irradiation of the aggregated dermal melanophores does not change the physiological state. As compared these data with previous ones a conclusion of high selective susceptibility to the X-ray irradiation of the tadpoles' epidermal melanophores has been drawn.