Estimation of the acute cesium toxicity by the microbial assay for risk assessment (MARA) test

• Autorzy: Bronowska M. , Stęborowski R. , Bystrzejewska-Piotrowska G.
• Języki publikacji: EN

Abstrakty

EN

The microbial assay for risk assessment (MARA) test was used for acute cesium toxicity evaluation in water solutions. The test contained 11 different microorganisms with a wide spectrum of sensitivity. The resistance of microorganisms to cesium was characterized as follows: microbial toxic concentration (MTC), half maximal inhibitory concentration (IC50), maximal inhibitory concentration (IC100). The sensitivity to cesium was characterized by the lowest observed effect level (LOEL). High levels of sensitivity in the range 3.1–6.3 mM were shown by the following microorganisms: Serratia rubidaea > Pseudomonas aurantiaca, Delftia acidovorans, Citrobacter freundii, Staphylococcus warneri. Lower levels of sensitivity (up to 16 mM) were noted for Comamonas testosteroni, Microbacterium species, Kurthia gibsonii, Pichia anomala, whereas that in the range 24–31 mM for Brevundimonas diminuta > Enterococcus casseliflavus. High resistance to Cs+ was found for E. casseliflavus (MTC 86.9 g/l) > the yeast – P. anomala (MTC 19.3 g/l) > K. gibsoni (MTC 17.4 g/l) > B. diminuta (MTC 13.4 g/l). The phenomenon of resistance of enterococcus and yeast strains was discussed.

Słowa kluczowe

EN

cesium toxicity; microorganisms’ resistance to cesium; resistance of Enterococcus casseliflavus to cesium; Microbacterium species; Brevundimonas diminuta; Citrobacter freudii; Comamonas testosteroni; Enterococcus casseliflavus; Delftia acidovorans; Kurthia gibsonii; Staphylococcus warneri; Pseudomonas aurantiaca; Serratia rubidaea; Pichia anomala

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2013
• Tom: Vol. 58, No. 4
• Strony: 481--485
• Opis fizyczny: Bibliogr. 21 poz., rys.

Twórcy

autor

Bronowska M.

• Isotope Laboratory, Faculty of Biology, University of Warsaw, 1 Miecznikowa Str., 02-096 Warsaw, Poland, Tel.: [phone], Fax: [phone]

autor

Stęborowski R.

• Isotope Laboratory, Faculty of Biology, University of Warsaw, 1 Miecznikowa Str., 02-096 Warsaw, Poland, Tel.: [phone], Fax: [phone]

autor

Bystrzejewska-Piotrowska G.

• Isotope Laboratory, Faculty of Biology, University of Warsaw, 1 Miecznikowa Str., 02-096 Warsaw, Poland, Tel.: [phone], Fax: [phone]

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