Figure 1.

SDH-deficient Arabidopsis plants showed an increase in size. Plants were grown for 2 weeks on plates and then 4 weeks in soil in short-day conditions. A, Photograph of representative 6-week-old plants. B, Biomass of 6-week-old shoots from wild-type (Ws, light gray bar; Col0, black bar), SDH1-1/sdh1-1 (white bar), RNAi ih1.1 (dark gray bar), and RNAi ih1.3 (gray bar) plants. Values are presented as means ± se of 11 individual plants per line. Asterisks indicate values that were determined by t test to be significantly different from the wild type (*** P < 0.01, * P < 0.05).