Open AccessIsolation and identification of cobalt‐ and caesium‐resistant bacteria from a nuclear fuel storage pond
Author(s) -
Dekker Linda,
Osborne Thomas H.,
Santini Joanne M.
Publication year - 2014
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/1574-6968.12562
Subject(s) - caesium , bacteria , serratia , bioremediation , serratia marcescens , strain (injury) , cobalt , isolation (microbiology) , contamination , radionuclide , microbiology and biotechnology , chemistry , biology , escherichia coli , physics , ecology , pseudomonas , inorganic chemistry , biochemistry , genetics , organic chemistry , anatomy , quantum mechanics , gene
One of the issues facing the nuclear power industry is how to store spent nuclear fuel which is contaminated with radionuclides produced during nuclear fission, including caesium ( 134 Cs + , 135 Cs + and 137 Cs + ) and cobalt ( 60 Co 2+ ). In this study, we have isolated Co 2+ ‐ and Cs + ‐resistant bacteria from water collected from a nuclear fuel storage pond. The most resistant Cs + and Co 2+ isolates grew in the presence of 500 mM CsCl and 3 mM CoCl 2 . Strain Cs67‐2 is resistant to fourfold more Cs + than Cupriavidus metallidurans str. CH34 making it the most Cs + ‐resistant strain identified to date. The Cs + ‐resistant isolates were closely related to bacteria in the Serratia and Yersinia genera, while the Co 2+ ‐resistant isolates were closely related to the Curvibacter and Tardiphaga genera. These new isolates could be used for bioremediation.