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Elongation and cell division. (A–D) Columbia WT (Left) and mya2-1 (Right).(A) Stem epidermis. (B) Root hairs. (C) Part of a meristematic cell file in root tips at a distance of 200–500 μm from the columella. Per frame, 11 cells can be counted in the WT in contrast to 9 cells in mya2-1.(D) Overview of the root tip with arrows pointing to columella cells. (E and F) Epidermal cell length in stamen filaments (E) and hypocotyls (F). (A–C: Bar = 50 μm; D: Bar = 10 μm.)
