Figure 8.

Influence of Cu treatment on root growth of COX11 mutants. Relative root growth of 12-day-old WT and KD (A) as well as WT and OE (B) seedlings cultured on plates with copper excess or deficiency (BCS). Root length is expressed relative to WT or mutant seedlings on control plates. Roots were measured in three independent experiments. Error bars represent ± SD for n = ~40 (WT), ~30 (KD1-1, KD1-2), and ~35 (OE1, OE2). Asterisks indicate statistical significance calculated with the Student's t-test (mutant line compared with WT, ^*P < 0.05; ^**P < 0.01). Individual values are listed in the Supplementary Table 5. BCS, bathocuproinedisulfonic acid.