Plant uptake and transport of /sup 241/Am
We conducted several experiments with /sup 241/Am to obtain a more complete understanding of how this transuranium element is absorbed and transported in plants. In a plant species (Tamarix pentandra Pall.) that has salt glands in the leaves excreting NaCl and other ions, /sup 241/Am was not pumped through these glands. Cyanide, which forms complexes with any metals, when applied to a calcareous soil, greatly increased the transport of /sup 241/Am into stems and leaves of bush bean plants. Radioactive cyanide (/sup 14/C) was also transported to leaves and stems. When radish was grown in both calcareous and noncalcareous soils, /sup 241/Am appeared to be fixed on the peel so firmly that it was resistant to removal by HNO/sub 3/ washing. The chelating agent DTPA induced increased transport of /sup 241/Am to leaves and into the fleshy roots of the radish.
- Research Organization:
- Univ. of California, Los Angeles
- OSTI ID:
- 6054544
- Journal Information:
- Soil Sci.; (United States), Journal Name: Soil Sci.; (United States) Vol. 132:1; ISSN SOSCA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Effect of various concentrations of DTPA chelating agent in soil on uptake and distribution of /sup 241/Am in bush bean plants
Effect of concentration on /sup 241/Am uptake by plants with and without DTPA treatment
Related Subjects
Terrestrial-- Radioactive Materials Monitoring & Transport-- Terrestrial Ecosystems & Food Chains-- (-1987)
54 ENVIRONMENTAL SCIENCES
560173* -- Radiation Effects-- Nuclide Kinetics & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ABSORPTION
ACTINIDE COMPOUNDS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
AMERICIUM 241
AMERICIUM COMPOUNDS
AMERICIUM ISOTOPES
AMERICIUM NITRATES
AMINO ACIDS
ANIONS
BEANS
BIOLOGICAL EFFECTS
CARBON 14 COMPOUNDS
CARBOXYLIC ACIDS
CEREALS
CHARGED PARTICLES
CHELATING AGENTS
CUCUMBERS
CYANIDES
DRUGS
DTPA
FOOD
GRAMINEAE
GRASS
HEAVY NUCLEI
IONS
ISOTOPES
LABELLED COMPOUNDS
LEAVES
LOAM
MAIZE
NITRATES
NITROGEN COMPOUNDS
NUCLEI
ODD-EVEN NUCLEI
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PH VALUE
PLANT STEMS
PLANTS
RADIOISOTOPES
RADIONUCLIDE KINETICS
RADIOPROTECTIVE SUBSTANCES
RADISHES
ROOT ABSORPTION
SOILS
TRANSLOCATION
TRANSPLUTONIUM COMPOUNDS
TRANSURANIUM COMPOUNDS
UPTAKE
VEGETABLES
YEARS LIVING RADIOISOTOPES