Analysis of biosorption and biotransformation mechanism of Pseudomonas chengduensis strain MBR under Cd(II) stress from genomic perspective.
Ecotoxicol Environ Saf
; 198: 110655, 2020 Jul 15.
Article
em En
| MEDLINE
| ID: mdl-32361136
Microbial treatment of heavy metal-polluted sites is considered an environmentally friendly bioremediation technology with high potential. This study shows that Pseudomonas chengduensis strain MBR, a bacterium that can potentially be applied in the treatment of heavy metal pollution, is most affected by Cd(II) stress at the beginning of its growth. Up to 100% of total Cd(II) adsorption occurs in the first 48 h after treatment of stationary phase cells with Cd(II). A biofilm forms on the cell surface, Cd(II) adsorbs, and is reduced to Cd (0) in the form of nanoscale particles. The genome of strain MBR was sequenced, annotated and analyzed. We identified various genes potentially related to cadmium resistance, transport and metabolism. Analysis of the strain MBR genome is helpful to explore the mechanism of Cd(II) resistance, and can provide new ideas for cadmium pollution control.
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01-internacional
Base de dados:
MEDLINE
Assunto principal:
Pseudomonas
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Cádmio
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DNA Bacteriano
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Estresse Oxidativo
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Poluentes Ambientais
Idioma:
En
Revista:
Ecotoxicol Environ Saf
Ano de publicação:
2020
Tipo de documento:
Article