State transitions in cells acclimated to the day-night cycle. A, Kinetics of the transition from full state I (achieved with illumination in the presence of DCMU) to complete state II upon anoxia. The line represents a monoexponential decay fit of three independent experiments, whereas the shaded areas correspond to 95% confidence intervals of the fit. B, Amplitude of the state I to state II transition. Means ± sd from three independent experiments are shown.