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Full legends to accompany the videos online.

Video S1 Time lapse video of the gravitropic reaction of a Nicotiana tabacum root (stimulation by 90?, field of view approx. 3.2 mm ? 2.4 mm, first 4 h after stimulation). The green line is drawn into the first image and equidistantly sampled, and its single points tracked via optical flow. The relative elemental growth rate (REGR) and differential growth curvature rate (DGCR) can be calculated from the point positions.

Video S2 Time lapse video of the gravitropic reaction of an Arabidopsis thaliana root (stimulation by 90?, field of view approx. 1.41 mm ? 1.06 mm, first 3.75 h after stimulation). The green line is drawn into the first image and equidistantly sampled, and its single points tracked via optical flow. The relative elemental growth rate (REGR) and differential growth curvature rate (DGCR) can be calculated from the point positions.

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FilenameFormatSizeDescription
NPH_2299_sm_VideoS1.flv252KSupporting info item
NPH_2299_sm_VideoS2.flv248KSupporting info item