Cell population kinetics in tadpole limb epidermis during thyroxine-induced, spontaneous, and prolactin-inhibited metamorphosis

Effect of a light pulse during the dark

Effect of a light pulse during the dark on photoperiodic regulation of the rate of thyroxine-induced, spontaneous, and prolactin-inhibited metamorphosis inRana pipiens tadpoles

✍ Wright, Mary L. ;Jorey, Suzanne T. ;Blanchard, Linda S. ;Basso, Carolyn A. 📂 Article 📅 1988 🏛 John Wiley and Sons 🌐 English ⚖ 909 KB

Since Rana pipiens tadpoles injected with thyroxine (T4) early in the dark develop more slowly than those injected in the light, we studied the effect of giving a light pulse of 1 hr early in the dark. Tadpoles injected under a 7.5-W red light bulb in a darkened room with 0.2 microgram T4 daily at 2