Isolation and molecular identification of native As-resistant bacteria: As(III) and As(V) removal capacity and possible mechanism of detoxification.
Arch Microbiol
; 204(3): 191, 2022 Feb 23.
Article
em En
| MEDLINE
| ID: mdl-35194697
ABSTRACT
The study of arsenic (As)-resistant microorganisms with high As removal capacity is fundamental for the development of economically sustainable technologies used for the treatment of water contaminated with metalloid. In the current study, four bacterial strains were isolated from As-contaminated water samples of the Xichu region, Mexico. Based on 16S rRNA gene sequencing and phylogenetic analysis of the isolated strains, Rhodococcus gordoniae, Microbacterium hydrocarbonoxydans, Exiguobacterium indicum, and Pseudomonas kribbensis were identified as potential As removal strains. R. gordoniae shows the highest growth capacity in both As(III) and As(V). R. gordoniae, M. hydrocarbonoxydans, and E. indicum removed approximately 81.6, 79.9, and 61.7% of As(III), as well as 77.2, 68.9, and 74.8% of As(V), respectively. P. kribbensis removed only about 80.2% of As(V). This study contributes to the possible detoxification mechanisms employed by these bacteria. Such insight could be crucial in the successful implementation of in situ bioremediation programs using these little-known bacteria.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Arsênio
/
Poluentes do Solo
/
Actinomycetales
Tipo de estudo:
Diagnostic_studies
Idioma:
En
Revista:
Arch Microbiol
Ano de publicação:
2022
Tipo de documento:
Article