Movement of mercury-203 in plants

Technical Report · Sat Oct 01 04:00:00 EDT 1977

OSTI ID:6189685

Gay, D D; Butler, G P

This study was designed to assess plant uptake, translocation, and storage of three forms of mercury via root uptake from contaminated soil. Radioactive mercury-203, in the forms of mercuric acetate, methylmercuric chloride, and phenylmercuric acetate, were used. Two distinct varieties of the garden pea Pisum sativum were used, a dwarf variety, Little Marvel, and a normal variety, Alaska. The seeds were planted in soils contaminated with the mercury compounds. After maturation, stems, leaves, and pods were harvested and analyzed by gamma spectroscopy. Utilizing a least squares three-way analysis of covariance coupled with a Studentized Range Test, significant differences were noted among the levels of the three mercury compounds in the plants, between mercury levels in the two pea varieties, and among mercury levels in the different pea tissues examined. Phenylmercury levels differed consistently from levels of ionic mercury and methylmercury, suggesting a separate pathway for it ivement in radionuclide imaging by means of emission composition potential. The compound plating approacl threshold for all the investigated transistors and fast neutron spectra lies within the raal. The value of the potential slightly changes with the coordinate change in this region, i.e. the charge on a collecting electrode is not practically guided up to a certain moment of time during the movement of nonequilibrium carriers.

• Research Organization: Environmental Protection Agency, Las Vegas, NV (USA)
• OSTI ID: 6189685
• Report Number(s): PB-276472
• Country of Publication: United States
• Language: English

Related Subjects

550200 -- Biochemistry
550500* -- Metabolism
551000 -- Physiological Systems
59 BASIC BIOLOGICAL SCIENCES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOCHEMISTRY
CHEMISTRY
COMPARATIVE EVALUATIONS
CONTAMINATION
DAYS LIVING RADIOISOTOPES
DISTRIBUTION
EVEN-ODD NUCLEI
GAMMA SPECTROSCOPY
HEAVY NUCLEI
ISOTOPES
LEGUMINOSAE
MERCURY 203
MERCURY ISOTOPES
METABOLISM
NUCLEI
PHYSIOLOGY
PISUM
PLANTS
QUANTITY RATIO
RADIOISOTOPES
ROOTS
SENSITIVITY
SOILS
SPECTROSCOPY
TISSUE DISTRIBUTION
TRANSLOCATION
UPTAKE