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Root Branching Zone and LR Formation Zone in Arabidopsis.
A 10-d-old Col-0 seedling showing the root branching zone (black bar), from the shoot base to the most rootward emerged LR, and the LR formation zone (white bar), from the most rootward emerged LR to the most rootward primordium as detected on preparations cleared as described by Malamy and Benfey (1997). Bar = 5 mm.
[See online article for color version of this figure.]
