[Development of some cholinergic components in rat sympathetic ganglion].

Postnatal development of some cholinergic components has been studied in the rat superior cervical ganglion. Choline-acetyltransferase, the enzyme localized exclusively at the preganglionic nerve terminals, follows the same developmental pattern of the postganglionic alpha-bungarotoxin-acetylcholine receptors. These results suggest that pre- and postganglionic structures develop simultaneously and parallel. The ontogeny of acetylcholinesterase, a cholinergic enzyme localized at both pre- and postganglionic level, has been also investigated.