PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Tytuł artykułu

Influence of time, temperature, pH and inhibitors on bioaccumulation of radiocaesium - 137Cs by lichen Hypogymnia physodes

Treść / Zawartość
Identyfikatory
Warianty tytułu
Konferencja
Proceedings of the International Conference Mechanism of Radionuclides and Heavy Metals Bioaccumulation and their Relevance for Biomonitoring, Warsaw, Poland, October 7-8, 2005
Języki publikacji
EN
Abstrakty
EN
Caesium bioaccumulation experiments were carried out at 4 to 60°C using natural samples of the lichen Hypogymnia physodes. Thalli were incubated in 2.5 mi mol.l 1 CsCl solutions labelled with 137CsCl for up to 24 h at pH values from 2 to 10. Bioaccumulation of Cs+ ions in the first phase of the lichen-CsCl solution interaction is rapid, neither pH, nor temperature dependent within the range 4 to 60°C and observed also with the lichen biomass thermally inactivated at 60°C or chemically by formaldehyde. The second phase of 137Cs bioaccumulation is time, temperature and pH dependent and is inhibited by formaldehyde and thermal inactivation. The process at the initial concentration C0 = 2.5 ěmol.l 1 CsCl and 20°C reached equilibrium within 12 hours. It can be described by the first order reaction kinetics equation: log [Ct] = 1.89 - 0.00153 t, R = 0.950. Maximal values of Cs-bioaccumulation were observed at 20°C with minimum at 4°C and 40°C and at pH 4 5 with minimum at pH 2 and pH 6. Low caesium efflux values from lichen thalli by water and 0.1 mol.l 1 neutral salts at 20°C and 24 h equilibrium were observed. Efflux characterized by distribution coefficients D = [Cs]solution/[Cs]biomass at biomass/solution ratio 1:25 (w/v, wet wt.), decreases in the order: Li+- 78 × 10 3 >NH4 + = K+ 15 × 10 3 > Cs+ = Na+ 11 × 10 3. Low extractability of caesium from lichen by water and salt solutions can explain long persistent times of radiocaesium contamination sorbed by lichens, observed by many authors in caesiumcontaminated forest and mountain regions. Hypothesis of the role of the lichen secondary metabolites as caesium binders is discussed.
Słowa kluczowe
Czasopismo
Rocznik
Strony
39--44
Opis fizyczny
Bibliogr. 33 poz.
Twórcy
autor
  • Department of Biotechnology, Faculty of Natural Sciences, University of SS. Cyril and Methodius, 2 Nam. J. Herdu Str., 917 01 Trnava, Slovak Republic, Tel.: +421335565384, Fax: +421335565185
autor
  • Department of Biotechnology, Faculty of Natural Sciences, University of SS. Cyril and Methodius, 2 Nam. J. Herdu Str., 917 01 Trnava, Slovak Republic, Tel.: +421335565384, Fax: +421335565185
autor
  • Department of Biotechnology, Faculty of Natural Sciences, University of SS. Cyril and Methodius, 2 Nam. J. Herdu Str., 917 01 Trnava, Slovak Republic, Tel.: +421335565384, Fax: +421335565185
autor
  • Department of Biotechnology, Faculty of Natural Sciences, University of SS. Cyril and Methodius, 2 Nam. J. Herdu Str., 917 01 Trnava, Slovak Republic, Tel.: +421335565384, Fax: +421335565185
autor
  • Department of Biotechnology, Faculty of Natural Sciences, University of SS. Cyril and Methodius, 2 Nam. J. Herdu Str., 917 01 Trnava, Slovak Republic, Tel.: +421335565384, Fax: +421335565185
Bibliografia
  • 1. Alva R, Lugo JA, Artz E et al. (1992) Nigericin form high stable complexes with lithium and cesium. J Bioenerg Biomembr 24:125−129
  • 2. Andersson CE, Mowbray SL (2002) Activation of ribokinase by monovalent cations. J Mol Biol 315:409−419
  • 3. Antonelli ML, Ercole P, Campanella L (1998) Studies about the adsorption on lichen Evernia prunastri by enthalpimetric measurements. Talanta 45:1039−1047
  • 4. Aumann DC, Clooth G, Steffan B, Steglich W (1989) Complexation of cesium-137 by the cap pigments of the bay boletus (Xerocomus badius). Angew Chem Int Ed Engl 28:453−454
  • 5. Avery SV (1995) Cesium accumulation by microorganisms: uptake mechanisms, cation competition, compartmentalization and toxicity. J Ind Microbiol 14:76−84
  • 6. Avery SV (1996) Fate of cesium in the environment: distribution between the abiotic and biotic components of aquatic and terrestrial ecosystems. J Environ Radioact 30:139−171
  • 7. Avery SV, Codd GA, Gadd GM (1991) Cesium accumulation and interaction with other monovalent cations in the Cyanobacterium Synechocystis PPC 6803. J Gen Microbiol 137:405−413
  • 8. Bossemeyer D, Schlosser A, Bakker EP (1981) Specific cesium transport via the Escherichia coli Kup (TrkD) K+uptake system. J Bacteriol 171:2219−2221
  • 9. Choi EM, Oh H, Ko SW, Choi Y-K, Nam KC, Jeon S (2001) Polymeric membrane cesium-selective electrodes based on quadruply-bridged calix 6 arenes. Bull Korean Chem Soc 22:1345−1349
  • 10. Dozol JF, Dozol M, Macias RM (2000) Extraction of strontium and cesium by dicarbollides, crown ethers and functionalised calixarenes. J Incl Phenom Macrocycl Chem 38:1−22
  • 11. Ellis KM, Smith JN (1987) Dynamic model for radionuclide uptake in lichens. J Environ Radioact 5:185−208
  • 12. Garaudee S, Elhabiri M, Kalny D et al. (2002) Allosteric effects in Norbadione A. A clue for the accumulation process of 137Cs in mushrooms? Chem Commun 7:944−945
  • 13. Gaur S (1996) Determination of Cs-137 in environmental water by ion-exchange chromatography. J Chromatogr A 733:57−71
  • 14. Gedeonov AD, Petrov ER, Alexeev VG et al. (2002) Residual radioactive contamination at the peaceful underground nuclear explosion sites “Craton-3” and “Crystal” in the Republic of Sakha (Yakutia). J Environ Radioact 60:221−234
  • 15. Haas JR, Bailey HE, Purvis OW (1998) Bioaccumulation of metals by lichens: uptake of aqueous uranium by Peltigera membranacea as a function of a time and pH. Am Mineralogist 83:1494−1502
  • 16. Ivshina IB, Peshkur TA, Korobov VP (2002) The efficient accumulation of cesium ions by Rhodococcus cells. Mikrobiologia 71:418−423
  • 17. Kaliyappan T, Kannan P (2000) Co-ordination polymers.Prog Polym Sci 25:343−370
  • 18. Kirchner G, Daillant O (2002) The potential of lichens as long-term biomonitors of natural artificial radionuclides. Environ Pollut 120:145–150
  • 19. Koèiová M, Pipíška M, Horník M, Augustín J (2005) Bioaccumulation of radiocesium by lichen Hypogymnia physodes. Biologia, Bratislava 60 (in press)
  • 20. Lange OL, Green TGA (2005) Lichens show that fungi can acclimate their respiration to seasonal changes in temperature. Oecologia 142:11−19
  • 21. Liaw SH, Kuo I, Eisenberg D (1995) Discovery of the ammonium substrate site on glutamin synthetase, a third cation-binding site. Protein Sci 4:2358−2365
  • 22. Lin W, de Freitas DM, Zhang Q, Olsen KW (1999) Nuclear magnetic resonance and oxygen affinity study of cesium binding in human erythrocytes. Arch Biochem Biophys 369:78−88
  • 23. Ming LJ (2003) Structure and function of “metalloantibiotics”. Med Res Rev 23:697−762
  • 24. Nedić O, Stanković A, Stanković S (1999) Organic cesium carrier(s) in lichen. Sci Total Environ 227:93−100
  • 25. Nedić O, Stanković A, Stanković S (2000) Specificity of lichen species in respect to 137Cs binding. Int J Environ Anal Chem 76:311−318
  • 26. Pankiewicz R, Schroeder G, Gierczyk B et al. (2001) Li-7-NMR and FTIR studies of lithium, potassium, rubidium and cesium complexes with ionophore lasalocid in solution. Biopolymers 62:173−182
  • 27. Polar E (2002) The association of 137Cs with various components of tea leaves fermented from Chernobyl contaminated green tea. J Environ Radioact 63:265−270
  • 28. Richardson DHS (1995) Metal uptake in lichens. Symbiosis 18:119−127
  • 29. Sakhnini A, Gilboa H (1998) Nuclear magnetic resonance studies of cesium-133 in the halophilic halotolerant bacterium Ba1. Chemical shift and transport studies. NMR Biomed 11:80−86
  • 30. Sukhorukov FV, Gavshin VM, Malikova IN et al. (2000) Cesium-137 in the environment of the Altay region (Russia). Water, Air, Soil Pollut 118:395−406
  • 31. Wirth V (1995) Die Flechten Baden-Württembergs, 2nd ed. Eugen Ulmer GmbH & Company, Germany
  • 32. Yule L, Taylor DM (1989) Chernobyl radioactivity in Turkish tea: a response. Health Phys 57:495
  • 33. Zhu YG, Shaw G (2000) Soil contamination with radionuclides and potential remediation. Chemosphere 41:121−128
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUJ6-0005-0007
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.