FIGURE 9.

The effect of various inhibitors on the gravitropic bending of roots of the EHB1‐GFP overexpressing expressing strain (Dümmer et al., 2016). Vertically raised seedlings were tilted 90°, and the gravitropic bending angles were determined after 20 hr in darkness. The seedlings were treated with the same inhibitor concentration that also affected the distribution of EHB1‐GFP fluorescence in horizontal root caps. Shaded columns: control MS media with traces of DMSO or ethanol to dissolve the different inhibitors used. Indole acetic acid was applied in two different concentrations (1 µM and 50 µM). Abbreviations as in Figure 8. Mean values and SE from 23 to 69 samples