title: The local expression of adult chicken heart myosins during development. I. The three days embryonic chicken heart.
abstract: Immunofluorescence studies were performed on serial sections of three days embryonic chicken hearts using antibodies specific for adult atrial and ventricular myosin heavy chains respectively. The anti-ventricular myosin serum reacted with the entire myocardium showing a decreasing intensity going from the truncus arteriosus to the atrial part; however, the antiatrial myosin serum reacted weakly with the myocardium of the atrial part. Two other interesting observations were made, i) the anti-atrial myosin serum reacted with non-myocardial cells in the cardiac jelly, ii) both antisera reacted with a thin myocardial layer, extending from the ventral wall of the atrial part via the medio-dorsal wall of the atrio-ventricular canal to the dorsal wall of the ventricular part.
mesh_terms: D000818:Animals; D002642:Chick Embryo / Q000254:growth & development / Q000378:metabolism*; D005455:Fluorescent Antibody Technique; D006321:Heart / Q000196:embryology*; D006325:Heart Atria; D006352:Heart Ventricles; D007106:Immune Sera / Q000276:immunology; D009206:Myocardium / Q000032:analysis*; D009218:Myosins / Q000032:analysis*; D014018:Tissue Distribution
chemical_list: D007106:Immune Sera; D009218:Myosins