Reversal of primary embryonic induction by cold, and the "fixation" of induction  in cells activated by lithium chloride.
D000818:Animals; D001001:Anura; D002454:Cell Differentiation; D002856:Chromatophores / Q000196:embryology*; D003080:Cold Temperature; D046508:Culture Techniques; D004625:Embryo, Nonmammalian; D008094:Lithium / Q000494:pharmacology*
D008094:Lithium