Pseudomonas aeruginosa KUCd1, a possible candidate for cadmium bioremediation
A cadmium (8 mM) resistant Pseudomonas aeruginosa strain KUCd1 exhibiting high Cd accumulation under in vitro aerobic condition has been reported. The isolate showed a significant ability to remove more than 75% and 89% of the soluble cadmium during the active growth phase from the growth medium and...
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| Formato: | article |
| Idioma: | eng |
| Publicado em: |
2009
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| Texto completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822009000300030 |
| País: | Brasil |
| Oai: | oai:scielo:S1517-83822009000300030 |
| Resumo: | A cadmium (8 mM) resistant Pseudomonas aeruginosa strain KUCd1 exhibiting high Cd accumulation under in vitro aerobic condition has been reported. The isolate showed a significant ability to remove more than 75% and 89% of the soluble cadmium during the active growth phase from the growth medium and from Cd-amended industrial wastewater under growth supportive condition. Transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy (EDXS) suggest the presence of Cd in the cells from mid-stationary phase. The cell fractionation study revealed membrane and periplasm to be the major accumulating site in this strain. The chemical nature of the accumulated Cd was studied by X-ray powder diffraction analysis. |
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