title: The threshold versus pigment relation of Xenopus rods.
mesh_terms: D000375:Aging; D000818:Animals; D003623:Dark Adaptation; D007814:Larva; D010786:Photoreceptor Cells / Q000254:growth & development / Q000502:physiology*; D012168:Retinal Pigments / Q000502:physiology*; D012684:Sensory Thresholds / Q000502:physiology; D014785:Vision, Ocular / Q000502:physiology*; D014802:Vitamin A Deficiency / Q000503:physiopathology; D014981:Xenopus
chemical_list: D012168:Retinal Pigments