Fig. 3

Time-dependent changes of the phosphate-metabolite concentration and the pH_i in resting CN-treated muscles. (Open circle, closed circle) PCr; (open triangle, closed triangle) P_i; (open inverted triangle, closed inverted triangle) G-6P; (open diamond, closed diamond) pH_i. The open and the solid symbols represent the data without and with adrenaline applications, respectively, and the error bars SEM. Adrenaline was applied to muscles at the time indicated by an arrow at the top (near the start of the late phase). The concentration of ATP was all about 4 mM and omitted for clarity. See details in the text