Farnesi, R M Activity trends of adenylate and guanylate cyclases and cAMP and cGMP levels during the first embryonic stages of Bufo bufo. [electronic resource] - Comparative biochemistry and physiology. Comparative physiology Jun 1993 - 319-22 p. digital Publication Type: Journal Article Standard No.: 10.1016/0300-9629(93)90214-o doi Subjects--Topical Terms: Adenylyl Cyclases--metabolismAnimalsBufo bufo--embryologyCell Differentiation--physiologyCell Division--physiologyCleavage Stage, Ovum--metabolismCyclic AMP--metabolismCyclic GMP--metabolismGastrula--metabolismGuanylate Cyclase--metabolismHistocytochemistryNervous System--embryology