Diurnal changes of carbohydrates in rosettes of the Arabidopsis Col-0 wild type (WT) and the starchless pgm mutant. The plants were grown in soil in a 12-h-light/12-h-dark diurnal cycle. The x axis starts at the end of the night, with 0 h representing harvest just before illumination, followed by the light period, the night, and a 10-h extended night treatment that was given on this day only. A, Starch in the wild type. B, Suc in the wild type. C, Glc in the wild type. D, Glc-6-P in the wild type. E, Starch in pgm. F, Suc in pgm. G, Glc in pgm. H, Glc-6-P in pgm. Note the different y axis in plots E to H. The original data are given in Supplemental Table S2. The results are means ± sd (n = 3 biological replicates). FW, Fresh weight.