Open AccessStudies on the accumulation of cadmium by a strain of Proteus mirabilis
Author(s) -
Andreoni V.,
Finoli C.,
Manfrin P.,
Pelosi M.,
Vecchio A.
Publication year - 1991
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/j.1574-6968.1991.tb04724.x
Subject(s) - proteus mirabilis , cadmium , strain (injury) , proteus , bacteria , microbiology and biotechnology , biology , chemistry , food science , escherichia coli , biochemistry , genetics , gene , anatomy , organic chemistry , staphylococcus aureus
A bacterium isolated from a wastewater plant sludge, identified as Proteus mirabilis , was tested for cadmium tolerance and accumulation capacity. The organism was able to grow in the presence of Cd 2+ up to 300 mg l −1 . Accumulation of cadmium is reported for growing and non‐growing cells of the organism. In non‐growing cultures a 70% removal of cadmium was observed when the initial concentration of Cd 2+ was 1 mg l −1 whereas at the same concentration the removal by growing cells was only 22%. The metal was shown to be associated with the cell envelope (80%) and accumulated in the cytoplasm (20%).