(a) The intracellular redox state in wild type (black bars) and the sll0783 (white bars) changes upon nitrogen starvation. (b) Intracellular redox state during nitrogen starvation of the wild type without inhibitor (circle), incubated with DCMU (squares), incubated with CCCP (triangle) and DCCD (inverted triangle). (c) Intracellular redox state during nitrogen starvation of the sll0783 mutant without inhibitor (circle), incubated with DCMU (squares), incubated with CCCP (triangle) and DCCD (inverted triangle). Errors between individual measurements were below 5%; therefore, error bars are left out.