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Root hair phenotype of 35S::AtRALFL8 plants. Wild-type (A and C) and 35S::AtRALFL8 (B and D) seedlings were grown on one-half-strength MS media and photographed after 4 d of growth. Long, dense root hairs are clearly visible in the overexpression line. Bars = 2.5 mm (A and B) and 500 μm (C and D). [See online article for color version of this figure.]
