The role of Ca2+ ions in excitation-contraction coupling of skeletal muscle fibres

Similar to other aquatic ectotherms, freshwater mussels are prone to the predicted global warming of surface waters. Sarco(endo)plasmic reticulum Ca2+-ATPase (SERCA) has a crucial role in regulating intracellular Ca2+ concentration in muscle cells and potentially involved in setting thermal preferences and behaviors of animals. To this end, we examined temperature effects on SERCA activity of adductor and foot muscles in two freshwater mussel...