Figure 6

Abiotic stress emphasizes the reduction of growth in case of AtCHR23 over-expression. (A) Photograph of 8-day-old seedlings grown at 23°C in long-day conditions on medium supplemented with 75 mM NaCl. (B) Mean (± SD) length of the primary roots of 8-day-old seedlings grown on 75 mM NaCl. (C) Photograph of 8-day-old seedlings grown at 23°C in long-day conditions on medium supplemented with 200 mM mannitol. (D) Mean (± SD) length of the primary roots of 8-day-old seedlings grown on 200 mM mannitol. (E) Photograph of 4-week-old wild-type and AtCHR23-4ov plants two weeks after application of salt stress. (F) Mean (± SD) rosette diameter of 4-week-old plants two weeks after application of salt stress. For each assay and line, 40 seedlings or 15 plants were measured. Asterisks indicate significant differences from the wild type: ^**, P < 0.01; ^***, P < 0.001.