Fig. 4. Time course of TMRM fluorescence from G. dibranchiata erythrocytes
exposed to control conditions (open symbols) or to 1.9 mmol l-1
sulfide (closed symbols) for 1 h. Fluorescence emission (595 nm) at each time
point is normalized to the initial value (t=0) for each treatment.
Values are means ± S.D. (N=5). Asterisks
represent a significant effect over time compared to the initial value by RM
ANOVA (*P<0.05).