title: Adenosine 3',5'-monophosphate: regional differences in chick embryos at the head process stage.
abstract: The concentrations of adenosine 3',5'-monophosphate and adenosine triphosphate and the activity of phosphodiesterase were determined in different regions of chick embryos at the head process stage. Adenosine 3',5'-monophosphate, adenosine triphosphate, and phosphodiesterase were estimated to be higher in the mesoderm-forming portions of the hypoblast than in portions that form neural structures from Hensen's node or the epiblast.
mesh_terms: D000255:Adenosine Triphosphate / Q000032:analysis; D000818:Animals; D002642:Chick Embryo / Q000032:analysis* / Q000201:enzymology; D000242:Cyclic AMP / Q000032:analysis*; D004475:Ectoderm / Q000032:analysis; D004707:Endoderm / Q000451:nursing; D008648:Mesoderm / Q000032:analysis; D009024:Morphogenesis; D010727:Phosphoric Diester Hydrolases / Q000032:analysis; D013997:Time Factors
chemical_list: D000255:Adenosine Triphosphate; D000242:Cyclic AMP; D010727:Phosphoric Diester Hydrolases