title: Cytochemical studies on the second gradient axis of fertilized oyster eggs. IV. On the activity of ATPase and reduced NAD dehydrogenase.
mesh_terms: D000251:Adenosine Triphosphatases / Q000378:metabolism*; D000818:Animals; D005260:Female; D005306:Fertilization; D006651:Histocytochemistry; D008974:Mollusca / Q000196:embryology / Q000201:enzymology*; D009243:NAD / Q000378:metabolism*; D010063:Ovum / Q000201:enzymology*; D010088:Oxidoreductases / Q000378:metabolism*
chemical_list: D009243:NAD; D010088:Oxidoreductases; D000251:Adenosine Triphosphatases