Fig. 5. Tenmo-ADFb (1 µmol l^–1; ADFb) and Achdo-KII (1 nmol l^–1; AKII) have no effect on fluid secretion by tubules incubated in low Cl^– saline (one-tenth normal [Cl^–]). Bars represent the means + 1 s.e.m. of fluid secretion by tubules in normal (open bars) and in low Cl^– (solid bars) saline. The number of replicates is shown in parentheses. In the final experimental period, all tubules were moved to normal saline (+ chloride). Note that identical letters indicate mean values that do not differ significantly i.e. P<0.05.