Uptake of Benzyladenine by Tuber Slices of Jerusalem Artichoke (Helianthus tuberosus L.) over a Wide Concentration Range
- 1 August 1982
- journal article
- research article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 70 (2) , 528-531
- https://doi.org/10.1104/pp.70.2.528
Abstract
Uptake of the cytokinin benzyladenine by tuber slices of Jerusalem artichoke (H. tuberosus L.) increased with the concentration of benzyladenine in the medium, in the range of 10-8-10-4 M. The kinetics of uptake could be precisely represented by 4 phases of a single, multiphasic isotherm. Km and Vmax increased in a regular manner upon transition to higher phases. The fit to multiphasic kinetics was significantly better than the fit to cooperative kinetics or to the sum of 4 independent Michaelis-Menten terms.This publication has 13 references indexed in Scilit:
- Stimulation of Plasmalemma Adenosine Triphosphatase from Oat Roots by Inorganic and Organic Cations: Concentration-Dependence, Selectivity, and SitesPlant Physiology, 1981
- Uptake of Benzyladenine by Excised Watermelon CotyledonsPlant Physiology, 1981
- Purification and Properties of a Protein Which Binds Cytokinin-active 6-Substituted PurinesPlant Physiology, 1981
- Isolation of Functionally Intact Rhodoplasts from Griffithsia monilis (Ceramiaceae, Rhodophyta)Plant Physiology, 1981
- Isolation of Cytokinin-Binding Protein from Plant Tissues by Affinity ChromatographyEuropean Journal of Biochemistry, 1980
- A Cytokinin-binding Protein from Wheat GermPlant Physiology, 1979
- An Improved Cytokinin Bioassay Using Cultured Soybean Hypocotyl SectionsPlant Physiology, 1976
- Corticoid Receptors in Rat Brain: Evidence for an Aldosterone ReceptorEndocrinology, 1976
- Diagnostic uses of the Hill (logit and Nernst) plotsJournal of Molecular Biology, 1975
- Multiphasic Absorption of Glucose and 3-O-Methyl Glucose by Aged Potato SlicesPlant Physiology, 1973