Fig. 6. Activities (mean ± s.e.m.) of citrate synthase (CS) (units
g-1 wet tissue) in liver (A), tail muscle (B) and heart (C). Open
boxes represent cold-acclimation treatment, and solid boxes represent
warm-acclimation treatment. There are significant interactions between
acclimation treatment and test temperature in muscle and heart, but not in
liver.