Maintenance of polarity of auxin movement by basipetal transport.
The polar, basipetal transport of indoleacetic acid helps to maintain polarity of auxin movement in coleoptiles of Avena sativa L. by opposing acropetal diffusion. This conclusion is supported by 3 different kinds of experiments. In all 3 experiments, sections took up (14)C carboxyl-labeled indole-3-acetic acid anaerobically, and the distribution of auxin within all sections was similar at the end of uptake.[LIST: see text].
Goldsmith
M H
MH
Department of Biology, Yale University, New Haven, Connecticut.