Bioaccumulation properties of nickel-, cadmium-, and chromium-resistant mutants of Pseudomonas aeruginosa NBRI 4014 at alkaline pH

Biological Trace Element Research
Abhishek GuptaReeta Goel

Abstract

Nickel-, cadmium-, and chromium-resistant mutants of Pseudomonas aeruginosa sp. NBRI 4014 are potent growth promontory strains. In the presence of metal(s), they have shown increased cell morphology and could accumulate nickel (2.0874 mM/g), cadmium (2.295 mM/g), and chromium (2.997 mM/g) at pH 9. However, chromium accumulation was maximum, but the toxicity levels of nickel, cadmium, and chromium was ranged from 90 to 504 microM of used metal(s). Bioaccumulation increases up to the fifth day at the highest used metal concentration and then became constant. This suggests their exploitation for detoxification and subsequently loaded biomass treatment for the recovery of accumulated metal(s).

Citations

Aug 21, 2015·Environmental Science and Pollution Research International·M N DouradoR A Azevedo
Nov 1, 2005·Microbiological Research·Abhishek GuptaReeta Goel

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