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Gravitropism: lateral thinking in auxin transport
1Department of Plant Sciences, University of Oxford, South Parks Road, UK. ian.moore@plants.ox.ac.uk
Current Biology : CB
|July 18, 2002
Abstract:
Plant stems and roots orient themselves with respect to directional illumination and gravity by differential growth on either side of the organ. A model formulated in the 1930s proposed that tropic growth curvature arose from growth hormone redistribution. Studies with Arabidopsis are beginning to reveal the mechanism.