THE UPTAKE OF RADIOACTIVE IODINE BY ASCOPHYLLUM
- 1 June 1951
- journal article
- research article
- Published by University of Chicago Press in The Biological Bulletin
- Vol. 100 (3), 188-190
- https://doi.org/10.2307/1538529
Abstract
The uptake of radioactive iodine by the brown alga. A. nodosum during a 15- to 20-hr. exptl. period gives a definite pattern of behavior. The uptake from sea water involves a constant exchange process between I within the alga and that in the surrounding medium, the concn. of I within the alga remaining constant. Initial uptake is rapid, indicating a rapid exchange rate for the process. In the 1st 10 min. of exposure the amt. taken up is about 1/3 of the equilibrium value; in 1 hr. about 90% is taken up. The equilibrium value is reached sometime in the 2d hr.Keywords
This publication has 7 references indexed in Scilit:
- FURTHER OBSERVATIONS ON THE ABSORPTION AND TRANSLOCATION OF INORGANIC SOLUTES USING RADIOACTIVE ISOTOPES WITH PLANTSPlant Physiology, 1950
- A Study of the Mechanism of Ion Absorption by Plant Roots Using Radioactive ElementsAmerican Journal of Botany, 1947
- The Absorption by Roots of Rubidium and Phosphate Ions at Extremely Small Concentrations as Revealed by Experiments with Rb 86 and P 32 Prepared Without Inert CarrierAmerican Journal of Botany, 1946
- Cation Exchange in Plant Roots in Relation to Metabolic FactorsAmerican Journal of Botany, 1940
- The Nature of Absorption of Radioactive Isotopes by Living Tissues as Illustrated by Experiments with Barley PlantsProceedings of the National Academy of Sciences, 1940
- CONTACT DEPLETION OF BARLEY ROOTS AS REVEALED BY RADIOACTIVE INDICATORSSoil Science, 1939
- Contact Effects between Plant Roots and Soil ColloidsProceedings of the National Academy of Sciences, 1938