Figure 2.

BASS6 Is Necessary for Growth under Photorespiratory Conditions.

(A) Representative photos of bass6 and plgg1 mutants compared with the wild type. Seedlings were grown under ambient CO₂ (8 weeks in 40 Pa CO₂ with an 8-h-light/16-h-dark cycle [22°C/18°C] at 250 μmol m⁻² s⁻¹ light intensity in growth chambers). Bar = 1 cm.

(B) Changes in F_v/F_m after 24 h of low CO₂ and constant illumination. Numbers represent the average of 12 plants from three replicate experiments. Bar = 1 cm.

(C) Relative growth rate of bass6-1 and plgg1-1 compared with the wild type at the indicated CO₂ concentration. Error bars indicate sd from five biological replicates, and letters indicate significant difference between genotype and CO₂ treatments based on ANOVA analysis (P < 0.05; Supplemental File 1).