||Uptake of Bromacil by Isolated Barley Roots.
Wickliff, C. ;
McFarlane, J. C. ;
Ratsch, H. ;
||Corvallis Environmental Research Lab., OR.
Organic compounds ;
Plant nutrition ;
Plant physiology ;
Carbon 14 ;
Bromine organic compounds ;
Nitrogen heterocyclic compounds ;
Hordeum vulgare ;
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A study of bromacil uptake by excised barley (Hordeum Vulgare) roots was used to evaluate this procedure as a tool to learn the uptake characteristics of toxic organic chemicals. Bromacil uptake was shown to be a passive process with an uptake rate (at 0.8 mg/l) of 0.64 micrograms bromacil/g fresh root/hr. A Q10 for the process was determined to be 1.5 and living roots were required for bromacil uptake. This procedure was judged to be a quick and inexpensive method to screen plant uptake of toxic chemicals.