Hostname: page-component-cd9895bd7-lnqnp Total loading time: 0 Render date: 2024-12-28T20:56:04.911Z Has data issue: false hasContentIssue false

Accumulation and distribution of 241Am in the biomass of freshwater plant Elodea canadensis

Published online by Cambridge University Press:  06 June 2009

T. A. Zotina*
Affiliation:
Institute of Biophysics SB RAS, Akademgorodok, 660036 Krasnoyarsk, Russia
G. S. Kalachova
Affiliation:
Institute of Biophysics SB RAS, Akademgorodok, 660036 Krasnoyarsk, Russia
A. Ya. Bolsunovsky
Affiliation:
Institute of Biophysics SB RAS, Akademgorodok, 660036 Krasnoyarsk, Russia
Get access

Abstract

Accumulation of transuranic element 241Am by photoassimilating organs and its distribution in fractions of the biomass of aquatic plant Elodea canadensis have been investigated in laboratory batch experiments. Americium was taken up by apical shoots of Elodea from water. Of the activity accumulated by the shoots, up to 80% of 241Am was detected in the leaves and 20% in the stems. Americium concentration in apical leaves was several times higher than in distal leaves. Of the 241Am activity concentrated in the shoots, 95% was bound to cell walls, membranes and organelles and 5% of the radionuclide was dissolved in cytoplasm. Less than 1% of americium accumulated in the biomass was found in the lipid extract; up to 10% of americium was bound to proteins and carbohydrates; the major part of the radionuclide (about 90%) was registered in the cell wall fraction that mainly contained cellulose-like polysaccharides. Biomass treatment with hydrochloric acid resulted in desorption of about 70% of americium, mostly from the polysaccharides.

Type
Research Article
Copyright
© EDP Sciences, 2009

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Fisher N.S., Burns K.A., Cherry R.D., Heyraud M., Mar. Ecol. Prog. Ser. 11 (1983) 233-237.
Vazquez M.D., Lopez J., Carballeira A., Ecotox. Environ. Safe. 44 (1999) 12-24.
Cecal A., Popa K., Caraus I., Potoroaca V., Isotopes Environ. Health Stud. 38 (2002) 33-37.
Cecal A., Popa K., Potoroaca V., Melniciuc-Puica N., J. Radioanal. Nucl. Ch. 251 (2002) 257-261.
Reinfelder J.R. and Fisher N.S., Science 251 (1991) 794-796.
Bolsunovsky A. and Bondareva L., J. Alloy. Compd. 444-445 (2007) 495-499.
Zotina T.A., J of Siberian federal university. Biology 1 (2008) 102-108.
Bolsunovsky A., Zotina T., Bondareva L., J. Environ. Radioactivity 81 (2005) 33-46.
Novitskaya G.V. and Rutskaya L.A., Phisiologia Rastenii (Plant physiology) 23 (1976) 889-905.
Lowry O.M., Rosenbrough W.J., Farr A.L., Randall R.J., J. Biol. Chem. 193 (1951) 265-275.
Dreywood R., Ind. Eng. Chem. 18 (1946) 499-504.
Zotina T.A., Bolsunovsky A.Ya., Bondareva L.G., Radiobiologia. Radioekologia. (Radiobiology. Radioecology) 48 (2008) 131-136.
Chappel K.R. and Goulder R., Arch. Hydrobiol. 132 (1994) 237-253.
Reinfelder J.R., Wang W.X., Luoma S.N., Fisher N.S., Mar. Biol. 129 (1997) 443-452.
Liu N., Liao J., Yang Y., Luo S., Luo Q., An Z., Duan Y., Liu M., Zhao P., J. Radioanal. Nucl. Ch. 275 (2008) 173-180.