Effect of concentration on /sup 241/Am uptake by plants with and without DTPA treatment

Journal Article · Wed Jul 01 04:00:00 EDT 1981 · Soil Sci.; (United States)

OSTI ID:6054568

Wallace, A; Romney, E M; Mueller, R T; Soufi, S M

The DTPA chelating agent (diethylenetriamine pentaacetate) enhanced shoot uptake of /sup 241/Am from solution culture by bush bean plants by promoting transfer of /sup 241/Am from roots to shoots, rather than by increasing total uptake. The major part of the radionuclide was associated with roots in treatments without DTPA. Some alpha radiation damage was suspected when large quantities of /sup 241/Am were transferred to shoots. The leaf concentration ratio (CR) decreased 3.9 times, with a 16-fold increase in concentration of /sup 241/Am applied in soil without DTPA. In contrast, the CR was positively related to levels of /sup 241/Am in soil with added DTPA. The /sup 241/Am uptake ratio for treated/untreated soils increased with higher concentrations of applied /sup 241/Am. Uptake coefficients for leaves for comparing two different concentrations of /sup 241/Am were about 0.5 without DTPA treatments and over 1 with DTPA treatments.

• Research Organization: Univ. of California, Los Angeles
• OSTI ID: 6054568
• Journal Information: Soil Sci.; (United States), Journal Name: Soil Sci.; (United States) Vol. 132:1; ISSN SOSCA
• Country of Publication: United States
• Language: English

Related Subjects

510302 -- Environment
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 ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
AMERICIUM 241
AMERICIUM ISOTOPES
AMINO ACIDS
BEANS
BIOLOGICAL EFFECTS
CARBOXYLIC ACIDS
CHELATING AGENTS
CONCENTRATION RATIO
DRUGS
DTPA
FOOD
HEAVY NUCLEI
ISOTOPES
LEAVES
NUCLEI
ODD-EVEN NUCLEI
ORGANIC ACIDS
ORGANIC COMPOUNDS
RADIOISOTOPES
RADIONUCLIDE KINETICS
RADIOPROTECTIVE SUBSTANCES
ROOT ABSORPTION
ROOTS
SOILS
UPTAKE
VEGETABLES
YEARS LIVING RADIOISOTOPES