Fig. 6. Expression of turtle UT mRNA relative to GAPDH mRNA in the kidney of control turtles and experimental turtles acclimated to dry conditions for 7 days. The signal for each band was measured by densitometry and is presented as a ratio (turtle UT/GAPDH). The UT mRNA expression was significantly increased more than 2-fold following dry acclimation. Values are means ± s.e.m., N=6. ^**Significant difference from control (Student's t-test, P<0.01).