title: Lateral electrical potential following asymmetric auxin application to maize coleoptiles.
abstract: Following asymmetric application of indoleacetic acid to maize (Zea mays L.) coleoptiles the early time course of changes in lateral electrical potential was externally monitored with static-drop electrodes. First, an early negative potential change of ca.-1 mV was measured at the surface on the side of a strong auxin application. This negative auxin effect ended after ca. 15 min and was followed by a strong and lasting auxin stimulation of a positive lateral potential up to +12 mV at the auxin-treated side. The initial auxin effect appeared to depend on the size of the step-up in auxin concentration.
authors.affiliation: Institut für Biologie III der Universität, Schänzlestraße 1, D-7800, Freiburg i. Br., Federal Republic of Germany.
authors.forename: M
authors.initials: M
authors.lastname: Morath
authors.forename: R
authors.initials: R
authors.lastname: Hertel