Cyclic AMP as a modulator of NaCl transport in gills of the euryhaline Chinese crabEriocheir sinensis

Experiments on the effect of cyclic AMP on Na+ and Cl− transport pathways were performed on isolated, perfused preparations of the posterior, osmoregulating gills of the euryhaline Chinese crabEriocheir sinensis. The crabs were caught during the autumn of 1987 in freshwater lakes near Emden (Federal Republic of Germany). N6-2′-O-dibutyryl adenosine 3′:5′-cyclic monophosphate (db-cAMP), 3-isobutyl-1-methylxanthine (IBMX), and …