Arsenic extraction from solid phase using a dissimilatory arsenate-reducing bacterium

Yamamura, Shigeki; Yamamoto, Norifumi; Ike, Michihiko; Fujita, Masanori

doi:10.1263/jbb.100.219

Cited by 23 publications

(30 citation statements)

References 17 publications

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“…The reduction experiments were carried out in the batch mode because that is the most promising design for the As extraction system from the contaminated soils (Yamamura et al, 2005). High arsenic concentrations in the batch reactor will make use of the outstanding feature of Bacillus sp.…”

Section: Resultsmentioning

confidence: 99%

“…It was reported that co-presence of other electron acceptors including nitrate, selenate (Yamamura et al, 2003(Yamamura et al, , 2004, and Fe(III) (Yamamura et al, 2005) did not inhibit the arsenate reduction.…”

Section: Bacterial Strainmentioning

confidence: 98%

“…SF-1 was originally isolated and kinetically characterized as a selenate-reducing bacterium (Fujita et al, 1997(Fujita et al, , 2002. This bioremediation agent was further characterized as a dissimilatory arsenate-reducing bacterium (Yamamura et al, 2003(Yamamura et al, , 2004(Yamamura et al, , 2005. The facultative anaerobe offers an advantage for remediation purposes: a large amount of inoculum can be prepared easily in aerobic conditions.…”

Section: Bacterial Strainmentioning

confidence: 99%

“…Our research group also characterized a dissimilatory arsenate-reducing bacterium, Bacillus sp. SF-1, to design and control remediation processes (Yamamura et al, 2003(Yamamura et al, , 2004(Yamamura et al, , 2005.…”

Section: Introductionmentioning

confidence: 99%

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Reduction kinetics of As (V) to As (III) by a dissimilatory arsenate-reducing bacterium,Bacillus sp. SF-1

Soda

Yamamura

Zhou

et al. 2006

Biotechnol. Bioeng.

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This study proposes a kinetic model that accounts for the toxicity of both arsenate and arsenite and characterizes the arsenate reduction ability of a dissimilatory arsenate-reducing bacterium, Bacillus sp. SF-1 as a bioremediation agent. The model results correlated well with a series of batch reduction experiments conducted anaerobically in serum bottles with initial arsenate concentrations of 360, 735, and 1,500 mg-As/L. The reduction rate was expressed by the Haldane equation that describes the inhibitory effect of high concentrations of arsenate. The reduction rate constant k(r), half saturation constant K(S), and inhibition constant K(I) were estimated respectively as 1.2 x 10(9) mg-As/cells/h, 1.5 x 10(2) mg-As/L, and 4.2 x 10(2) mg-As/L. Lethal effects of arsenite that is accumulated as the end-product of arsenate reduction were expressed by the first-order term with a lethal constant of 2.7 x 10(-4) L/mg-As/h. The yield for the bacterial cells by arsenate respiration was estimated at 4.0 x 10(8) cells/mg-As.

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Section: Resultsmentioning

confidence: 99%

Section: Bacterial Strainmentioning

confidence: 98%

Section: Bacterial Strainmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Reduction kinetics of As (V) to As (III) by a dissimilatory arsenate-reducing bacterium,Bacillus sp. SF-1

Soda

Yamamura

Zhou

et al. 2006

Biotechnol. Bioeng.

Self Cite

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“…Since the first report of an anaerobic bacterium capable of using arsenate as an electron acceptor for growth, at least 11 other phylogenetically diverse prokaryotes that can achieve growth via dissimilatory arsenate reduction (DAsR) to As(III) have been identified [11]. DARB are agents with the potential for cost-effective bioremediation [38] of As(V), but only one attempt has been made to develop a biological treatment process that uses these organisms [38]. Yamamura et al reported that a DARB, facultatively anaerobic Bacillus sp.…”

Section: Introductionmentioning

confidence: 99%

Isolation and characterization of an arsenate-reducing bacterium and its application for arsenic extraction from contaminated soil

Chang

Nawata

Jung

et al. 2012

Journal of Industrial Microbiology and Biotechnology

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A Gram-negative anaerobic bacterium, Citrobacter sp. NC-1, was isolated from soil contaminated with arsenic at levels as high as 5,000 mg As kg(-1). Strain NC-1 completely reduced 20 mM arsenate within 24 h and exhibited arsenate-reducing activity at concentrations as high as 60 mM. These results indicate that strain NC-1 is superior to other dissimilatory arsenate-reducing bacteria with respect to arsenate reduction, particularly at high concentrations. Strain NC-1 was also able to effectively extract arsenic from contaminated soils via the reduction of solid-phase arsenate to arsenite, which is much less adsorptive than arsenate. To characterize the reductase systems in strain NC-1, arsenate and nitrate reduction activities were investigated using washed-cell suspensions and crude cell extracts from cells grown on arsenate or nitrate. These reductase activities were induced individually by the two electron acceptors. This may be advantageous during bioremediation processes in which both contaminants are present.

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The Role of Microbes in Detoxification and Availability of Metalloids

Saghafi

Bagherifam

Hatami

et al. 2020

Metalloids in Plants

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Arsenic extraction from solid phase using a dissimilatory arsenate-reducing bacterium

Cited by 23 publications

References 17 publications

Reduction kinetics of As (V) to As (III) by a dissimilatory arsenate-reducing bacterium,Bacillus sp. SF-1

Reduction kinetics of As (V) to As (III) by a dissimilatory arsenate-reducing bacterium,Bacillus sp. SF-1

Isolation and characterization of an arsenate-reducing bacterium and its application for arsenic extraction from contaminated soil

The Role of Microbes in Detoxification and Availability of Metalloids

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