Role of iron in azoreduction by resting cells of Shewanella decolorationis S12

Chen, X.; Sun, Guoping; Xu, Meiying

doi:10.1111/j.1365-2672.2010.04913.x

Cited by 18 publications

(6 citation statements)

References 22 publications

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“…The lack of effects of rotenone on Fe(III)EDTA and Fe(II)EDTA‐NO reduction basically agrees with the data in earlier reports . As for NaN 3 , the tolerance of Fe(III)EDTA reduction was also recognized by other research while the effect on Fe(II)EDTA‐NO reduction was inconsistent with Matsubara and Iwasaki's result that NaN 3 decreased the rate of nitrous oxide formation . The doses used and the nature of NO might be contributed to the discrepancies.…”

Section: Resultssupporting

confidence: 87%

Evaluation of simultaneous reduction of Fe(II)EDTA‐NO and Fe(III)EDTA by a bacterial pure culture

Dong

Wang

et al. 2013

J of Chemical Tech & Biotech

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BACKGROUND: The integrated approach of using metal chelate (e.g. Fe(II)EDTA) absorption combined with microbial reduction for nitric oxide (NO) removal has been a frequent topic of much recent study. The present study was undertaken to evaluate simultaneous Fe(II)EDTA-NO and Fe(III)EDTA with Paracoccus denitrificans as a model microorganism. 3 and rotenone showed no measurable effects. CONCLUSIONS:The present study showed that Fe(II)EDTA-NO reduction and Fe(III)EDTA reduction reacted upon each other. The roles of sulfide were divided in terms of biological and chemical interactions during the simultaneous reduction. CuCl 2 could inhibit the simultaneous reduction rates.

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Section: Resultssupporting

confidence: 87%

Evaluation of simultaneous reduction of Fe(II)EDTA‐NO and Fe(III)EDTA by a bacterial pure culture

Dong

Wang

et al. 2013

J of Chemical Tech & Biotech

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“…Hence, the results indicated that Fe(III) as an energy source could enrich the biomass, promoting decolorization. On the other hand, the electron transfer cycle in the Fe (III)–dye reaction mixture might be attributed to a redox mediator containing iron and binding protein with lower redox potential than that of azo dyes …”

Section: Resultsmentioning

confidence: 99%

Anaerobic biodecolorization of AO7 by a newly isolated Fe(III)-reducing bacteriumSphingomonasstrain DJ

Ding

Zhang

Quan

et al. 2014

J. Chem. Technol. Biotechnol.

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BACKGROUND: Anaerobic technology is one of the most highly efficient methods for the biological treatment of dye wastewater by means of the reductive cleavage of the azo linkages. Dissimilatory Fe(III)-reducing microorganisms play crucial roles in a number of processes of environmental concern. The main objective of the study was to investigate the novel Fe(III)-reducing strain isolated from a BES enhanced by addition of Fe(OH) 3 . RESULTS:In this study, a new electrogen, Sphingomonas strain DJ, was isolated from a microbial electrochemical reactor with Fe(OH) 3 added. The iron-reduction and the dye decolorization efficiencies of this strain achieved 69.04% and 97.65%, respectively. Cyclic voltammetry showed that strain DJ had electrochemical activity. The dye concentration, operating temperature and pH had obvious effects on the performance of the strain. Addition of Fe(III) into the medium further enhanced the decolorization efficiency. The possible pathway of the reduction of AO7 with the new strain was proposed. CONCLUSION: The model developed for this study could provide a new method for enriching electroactively Fe(III)-reducing bacteria to treat other refractory wastewaters. Figure 2. Phylogenetic tree, based on 16S rRNA gene sequences, showing phylogenetic relationships between members of the family Sphingomonas. Accession numbers are shown in parentheses. Bar, 0.005 substitutions per nucleotide position.wileyonlinelibrary.com/jctb

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“…Methods to speed up characterisation and collect more data were employed in this study using a simple, high-throughput method employing microplates [38,42]. Resting cells have been utilized in exploring the biological reduction of heavy metals including vanadate [43], selenate [44], chromate [45], reductions and xenobiotics biodegradation such as dyes [46,47], diesel [48], SDS [49], phenol [50], amides [51] and pentachlorophenol [52].…”

Section: Identification Of Mo-reducing Bacteriummentioning

confidence: 99%

Isolation and Characterization of a Molybdenum-reducing and Carbamate-degrading Serratia sp. strain Amr-4 in soils from Egypt

2021

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Physical or chemical procedures could efficiently remove contaminants including pesticides such as carbamates from high concentrations of toxicants. Bioremediation, on the other hand, is frequently a less expensive option in the long term when used at low concentrations. Isolation of multiple toxicants removing microorganisms is the goal of bioremediation. In this paper we report on the molybdenum reduction of the bacterium and its ability to grow on the carbamates carbofuran and carbaryl as carbon sources. Both the carbamates carbofuran and carbaryl cannot support molybdenum reduction when used as the sole carbon sources. Between pH 6.0 and 6.8 and between 30 and 34 oC, the bacterium is most efficient in converting molybdate to Mo-blue. For molybdate reduction, glucose was shown to be the strongest electron donor, with maltose and sucrose coming in second and third, respectively, and d-mannitol and d-adonitol coming in last. Phosphate concentrations of 2.5 to 7.5 mM and molybdate concentrations of 20 to 30 mM are also needed. Identical to that of a decreased phosphomolybdate, the Mo-blue produced by the new Mo-reducing bacteria has an absorption spectrum similar to prior Mo-reducing bacteria. Inhibition of molybdenum reduction was 73.3, 50.1, 50.1 and 20.7 percent, respectively, by mercury, copper, silver and lead at 2 ppm. The bacterium was tentatively identified as Serratia sp. strain Amr-4 after biochemical investigation. This bacterium's ability to detoxify a variety of toxicants is highly sought after, making it a significant bioremediation agent.

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Role of iron in azoreduction by resting cells of Shewanella decolorationis S12

Cited by 18 publications

References 22 publications

Evaluation of simultaneous reduction of Fe(II)EDTA‐NO and Fe(III)EDTA by a bacterial pure culture

Evaluation of simultaneous reduction of Fe(II)EDTA‐NO and Fe(III)EDTA by a bacterial pure culture

Anaerobic biodecolorization of AO7 by a newly isolated Fe(III)-reducing bacteriumSphingomonasstrain DJ

Isolation and Characterization of a Molybdenum-reducing and Carbamate-degrading Serratia sp. strain Amr-4 in soils from Egypt

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