Selenium Absorption by Excised Astragalus Roots
- 1 January 1968
- journal article
- research article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 43 (1) , 14-20
- https://doi.org/10.1104/pp.43.1.14
Abstract
Absorption of selenate and selenite by excised roots of Astragalus crotalariae, a selenium accumulator, and of A. lentiginosus, a non-accumulator, was favored by CaCl2 and a pH of 4.0. The uptake of selenate and possibly selenite, is metaboli-cally linked. Roots of a number of Astragalus species were examined, and in all cases selenate entered the roots much faster than selenite. In these short-term experiments there was no relation between uptake of the 2 ions and classification of a species as selenium-accumulator or non-accumulator.This publication has 11 references indexed in Scilit:
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