干旱区生态环境知识资源中心(Arid): Characterization of Arsenite-Oxidizing Bacteria Isolated from Arsenic-Rich Sediments, Atacama Desert, Chile

Arid

DOI	10.3390/microorganisms9030483
	Characterization of Arsenite-Oxidizing Bacteria Isolated from Arsenic-Rich Sediments, Atacama Desert, Chile
	Herrera, Constanza; Moraga, Ruben; Bustamante, Brian; Vilo, Claudia; Aguayo, Paulina; Valenzuela, Cristian; Smith, Carlos T.; Yanez, Jorge; Guzman-Fierro, Victor; Roeckel, Marlene; Campos, Victor L.
通讯作者	Campos, VL (corresponding author), Univ Concepcion, Fac Biol Sci, Dept Microbiol, Lab Environm Microbiol, Concepcion 4070386, Chile. ; Moraga, R (corresponding author), Arturo Prat Univ, Fac Renewable Nat Resources, Microbiol Lab, Iquique 1100000, Chile.
来源期刊	MICROORGANISMS
EISSN	2076-2607
出版年	2021
卷号	9 期号:3
英文摘要	Arsenic (As), a semimetal toxic for humans, is commonly associated with serious health problems. The most common form of massive and chronic exposure to As is through consumption of contaminated drinking water. This study aimed to isolate an As resistant bacterial strain to characterize its ability to oxidize As (III) when immobilized in an activated carbon batch bioreactor and to evaluate its potential to be used in biological treatments to remediate As contaminated waters. The diversity of bacterial communities from sediments of the As-rich Camarones River, Atacama Desert, Chile, was evaluated by Illumina sequencing. Dominant taxonomic groups (>1%) isolated were affiliated with Proteobacteria and Firmicutes. A high As-resistant bacterium was selected (Pseudomonas migulae VC-19 strain) and the presence of aio gene in it was investigated. Arsenite detoxification activity by this bacterial strain was determined by HPLC/HG/AAS. Particularly when immobilized on activated carbon, P. migulae VC-19 showed high rates of As(III) conversion (100% oxidized after 36 h of incubation). To the best of our knowledge, this is the first report of a P. migulae arsenite oxidizing strain that is promising for biotechnological application in the treatment of arsenic contaminated waters.
英文关键词	arsenic arsenite-oxidizing biofilm detoxification
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000633903800001
WOS类目	Microbiology
WOS研究方向	Microbiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351145
作者单位	[Herrera, Constanza; Bustamante, Brian; Vilo, Claudia; Aguayo, Paulina; Valenzuela, Cristian; Smith, Carlos T.; Campos, Victor L.] Univ Concepcion, Fac Biol Sci, Dept Microbiol, Lab Environm Microbiol, Concepcion 4070386, Chile; [Moraga, Ruben] Arturo Prat Univ, Fac Renewable Nat Resources, Microbiol Lab, Iquique 1100000, Chile; [Aguayo, Paulina] Univ Concepcion, Fac Environm Sci, EULA Chile, Concepcion 4070386, Chile; [Aguayo, Paulina] Univ Las Amer, Fac Vet Med & Agron, Inst Nat Resources, Sede Concepcion, Campus El Boldal,Av Alessandri 1160, Concepcion 4090940, Chile; [Yanez, Jorge] Univ Concepcion, Fac Chem Sci, Dept Analyt & Inorgan Chem, Concepcion 4070386, Chile; [Guzman-Fierro, Victor; Roeckel, Marlene] Univ Concepcion, Fac Engn, Dept Chem Engn, Concepcion 4070386, Chile
推荐引用方式 GB/T 7714	Herrera, Constanza,Moraga, Ruben,Bustamante, Brian,et al. Characterization of Arsenite-Oxidizing Bacteria Isolated from Arsenic-Rich Sediments, Atacama Desert, Chile[J],2021,9(3).
APA	Herrera, Constanza.,Moraga, Ruben.,Bustamante, Brian.,Vilo, Claudia.,Aguayo, Paulina.,...&Campos, Victor L..(2021).Characterization of Arsenite-Oxidizing Bacteria Isolated from Arsenic-Rich Sediments, Atacama Desert, Chile.MICROORGANISMS,9(3).
MLA	Herrera, Constanza,et al."Characterization of Arsenite-Oxidizing Bacteria Isolated from Arsenic-Rich Sediments, Atacama Desert, Chile".MICROORGANISMS 9.3(2021).