Related Experiment Video
Updated: May 3, 2026

Measuring Gene Expression in Bombarded Barley Aleurone Layers with Increased Throughput
Published on: March 30, 2018
Inhibition of ion accumulation in maize roots by abscisic acid
D L Shaner1, S M Mertz, C J Arntzen
1Department of Botany, University of Illinois, 61801, Urbana, Illinois, USA.
Abstract:
An inhibition of root growth, a decrease in the amount of potassium (as (86)Rb) and phosphate ((32)P) accumulation by the root, and a partial depolarization of transmembrane electropotential were observed to develop with a similar time course and to a similar extent when intact maize (Zea mays L.) roots were treated with 10(-5) M abscisic acid (ABA). Potassium uptake was inhibited by ABA when excised, low-salt roots were bathed in KCl, KH2PO4, or K2SO4. ABA did not affect the ATP content of the tissues, the activity of isolated mitochondria, nor the activity of microsomal K(+)-stimulated ATPases.
Related Concept Videos
Adaptations that Reduce Water Loss
Regulation of Transpiration by Stomata
Responses to Salt Stress
Responses to Drought and Flooding

