title: Experimentally induced increases in glutamine synthetase in the optic tectum in the embryo and in culture.
mesh_terms: D000818:Animals; D002454:Cell Differentiation; D046508:Culture Techniques; D006854:Hydrocortisone / Q000494:pharmacology; D008025:Ligases / Q000096:biosynthesis*; D008636:Mesencephalon / Q000187:drug effects / Q000196:embryology / Q000201:enzymology*; D009899:Optic Lobe, Nonmammalian / Q000201:enzymology; D012160:Retina / Q000196:embryology / Q000201:enzymology
chemical_list: D008025:Ligases; D006854:Hydrocortisone