Uptake of Abscisic Acid in Tuber Slices of Jerusalem Artichoke and Potato
Abstract
Uptake of abscisic acid (ABA) into tuber slices of Jerusalem artichoke (Helianthus tuberosus L.) and potato (Solanum tuberosum L.) was directly proportional to external ABA concentration over a wide range (4 × 10−10–10−4 M). The rapid decrease in uptake with increasing pH (inflection point at about pH 5.5) was consistent with uptake being due to simple diffusion of undissociated ABA across the plasmalemma and trapping of the ABA anions inside the cell. Uptake of ABA was significantly reduced by low temperature and cyanide, probably through their effects on the maintenance of a high intracellular pH.
Department
Biological Sciences
Publication Date
9-1-1985
Journal Title
Journal of Plant Physiology
Publisher
Elsevier BV
Digital Object Identifier (DOI)
Document Type
Article
Recommended Citation
Subhash C. Minocha, Per Nissen, Uptake of Abscisic Acid in Tuber Slices of Jerusalem Artichoke and Potato, Journal of Plant Physiology, Volume 120, Issue 4, 1985, Pages 313-320, ISSN 0176-1617, https://doi.org/10.1016/S0176-1617(85)80130-9.
Rights
Copyright © 1985 Gustav Fischer Verlag, Stuttgart. Published by Elsevier GmbH All rights reserved.