Cellular redox balance is affected in Atnudt7-1 mutant. WT Col-0 and Atnudt7-1 mutant plants grown in 12:3:1 and Metro-Mix 200 (MM) potting mix were used for these analyses. A. Glutathione. B. Reduced ascorbate and dehydoascorbate. C. NAD+. D. NADH. E. Ratio of NADH: NAD+. Error bars represent standard deviation derived from two biological experiments with three replicates in each experiment. Bars with different letters indicate statistically significant differences in the measured metabolite in the Atnudt7-1 mutant compared with the corresponding WT.