Uptake, distribution, and metabolism of four organic chemicals by soybean plants and barley roots

Technical Report · Wed Dec 31 23:00:00 EST 1986

OSTI ID:5153527

McFarlane, C; Nolt, C; Wickliff, C; Pfleeger, T; Shimabuku, R

The uptake of bromacil, dichlorobenzonitrile (DCBN), nitrobenzene (NB) and dinitrobenzene (DNB) was studied in isolated barley roots and mature soybean plants. The uptake rate constants for soybean plants were in the order of DCBN = bromacil < NB < DNB. The same pattern was evident for the root tissue test, except for DNB. Metabolism of the (14)C-labeled chemicals indicated that DCBN was metabolized in the leaves but not in the roots. DNB was metabolized in the roots, and bromacil remained primarily as parent compound. A method for obtaining uptake rate constants is described.

• Research Organization: Environmental Protection Agency, Corvallis, OR (USA). Environmental Research Lab.
• OSTI ID: 5153527
• Report Number(s): PB-90-111626/XAB; EPA--600/J-87/489
• Country of Publication: United States
• Language: English

Related Subjects

550201 -- Biochemistry-- Tracer Techniques
560300* -- Chemicals Metabolism &amp; Toxicology
59 BASIC BIOLOGICAL SCIENCES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ABSORPTION
BARLEY
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CARBON 14
CARBON ISOTOPES
CEREALS
ENVIRONMENTAL EFFECTS
EVEN-EVEN NUCLEI
FOLIAR UPTAKE
GLYCINE HISPIDA
GRASS
ISOTOPE APPLICATIONS
ISOTOPES
LEGUMINOSAE
LIGHT NUCLEI
LILIOPSIDA
MAGNOLIOPHYTA
MAGNOLIOPSIDA
METABOLISM
NUCLEI
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHARMACOLOGY
PLANTS
RADIOISOTOPES
ROOT ABSORPTION
TRACER TECHNIQUES
UPTAKE
YEARS LIVING RADIOISOTOPES