title: Maintenance of polarity of auxin movement by basipetal transport.
abstract: 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].
authors.affiliation: Department of Biology, Yale University, New Haven, Connecticut.
authors.forename: M H
authors.initials: MH
authors.lastname: Goldsmith