Radioecological study of the Charophytes

Journal Article · Thu Jan 01 00:00:00 EST 1976 · Hydrobiol. J. (U.S.S.R.) (Engl. Transl.); (United States)

OSTI ID:6690034

Marciulioninene, D P; Dusauskiene-Duz, R F; Cibiraite, N A

The accumulation of Sr/sup 90/, Ce/sup 144/, Cs/sup 137/ and Ru/sup 106/ in Charophyta depends on the species, while accumulation of Sr/sup 90/ and Cs/sup 137/ depends on sampling time and vegetative period. The accumulation and excretion of Sr/sup 90/ and Cs/sup 137/ in Charophyta depend both on the exchangeable calcium and potassium in these algae and on the concentration of these elements in water. The Sr/sup 90/ and Cs/sup 137/ are taken up by the Charophyta during short-term experiments not only via absorption on a cell membrane but also via high-rate ion exchange between the environment and cellular components. The Ce/sup 144/ and Ru/sup 106/ uptake by Charophyta cells in short-term experiments occurs via absorption on cellular membrane. The uptake coefficients for aquatic plants notable for high mineralization (Charophyta) appear to be approximately 16 times as high under natural conditions as those under laboratory conditions, while the accumulation factors for Sr/sup 90/ in aquatic plants with fairly low mineralization (phytoplankton, Cladospora, Elodea and duckweed) were the same both under laboratory and natural conditions.

• Research Organization: Botanical Inst., Vilnyus, USSR
• OSTI ID: 6690034
• Journal Information: Hydrobiol. J. (U.S.S.R.) (Engl. Transl.); (United States), Vol. 1
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
59 BASIC BIOLOGICAL SCIENCES
CERIUM 144
BIOLOGICAL ACCUMULATION
CESIUM 137
PLANTS
RADIOECOLOGY
RUTHENIUM 106
STRONTIUM 90
ABSORPTION
AQUATIC ECOSYSTEMS
CALCIUM
CELL MEMBRANES
EXCRETION
FRESH WATER
ION EXCHANGE
PHYTOPLANKTON
PLANT CELLS
POTASSIUM
UPTAKE
ALKALI METAL ISOTOPES
ALKALI METALS
ALKALINE EARTH ISOTOPES
ALKALINE EARTH METALS
AQUATIC ORGANISMS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOMASS
CELL CONSTITUENTS
CERIUM ISOTOPES
CESIUM ISOTOPES
CLEARANCE
DAYS LIVING RADIOISOTOPES
ECOLOGY
ECOSYSTEMS
ELEMENTS
ENERGY SOURCES
EVEN-EVEN NUCLEI
HYDROGEN COMPOUNDS
INTERMEDIATE MASS NUCLEI
ISOTOPES
MEMBRANES
METALS
NUCLEI
ODD-EVEN NUCLEI
OXYGEN COMPOUNDS
PLANKTON
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
RENEWABLE ENERGY SOURCES
RUTHENIUM ISOTOPES
STRONTIUM ISOTOPES
WATER
YEARS LIVING RADIOISOTOPES
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550500 - Metabolism