2009
DOI: 10.1111/j.1365-2672.2008.03985.x
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Fe(III) oxide reduction and carbon tetrachloride dechlorination by a newly isolatedKlebsiella pneumoniaestrain L17

Abstract: Aims:  To isolate an iron‐reducing bacterium and examine its ability of Fe(III) oxide reduction and dechlorination. Methods and Results:  A fermentative facultative anaerobe, strain L17 isolated from subterranean sediment, can reduce Fe(III) oxides and carbon tetrachloride (CT). It was identified as Klebsiella pneumoniae by 16S rRNA sequence analysis. Strain L17 can metabolize fermentable substrates such as citrate, glycerol, glucose and sucrose coupled with the reduction of hydrous ferric oxide, goethite, lep… Show more

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Cited by 59 publications
(35 citation statements)
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“…3), although not as low as Fe°/FeII. The coupling of this FeIII/FeII cycling to the dechlorination of chlorinated compounds has been demonstrated at lab scale (Li et al 2008(Li et al , 2009) and could work for the CLD/5b-hydroCLD redox couple. CLD/5b-hydroCLD has indeed a redox potential of +414 mV (Dolfing et al 2012), which indicates that it can act as an electron acceptor for the 'iron oxide'/FeII couples, this part of the process being merely abiotic (Fig.…”
Section: Potential Formation Of 5b-hydrocld By Cld Dechlorinationmentioning
confidence: 99%
“…3), although not as low as Fe°/FeII. The coupling of this FeIII/FeII cycling to the dechlorination of chlorinated compounds has been demonstrated at lab scale (Li et al 2008(Li et al , 2009) and could work for the CLD/5b-hydroCLD redox couple. CLD/5b-hydroCLD has indeed a redox potential of +414 mV (Dolfing et al 2012), which indicates that it can act as an electron acceptor for the 'iron oxide'/FeII couples, this part of the process being merely abiotic (Fig.…”
Section: Potential Formation Of 5b-hydrocld By Cld Dechlorinationmentioning
confidence: 99%
“…In the iron-bearing environments, many fermentative microorganisms were reported with weak ability of Fe (III) reduction, but the fermentative microorganisms are considered to be responsible for the production of fermentation products, which serve as electron donors for the iron reduction by the DIRB. However, other coexisting substrates, e.g., nitrate and humic substances, can be reduced by many fermentative microorganisms, e.g., Escherichia and Klebsiella species (Gonzalez et al 2006;Li et al 2009;Moreno-Vivián et al 1999;Zhang et al 2009), and the abundance of fermentative microorganisms is usually 1 or 2 orders of magnitude higher than the DIRB (Reiche et al 2008). Bacillus sp., as a representative fermentative bacteria, has been reported as capable of Fe(III) reduction under anaerobic conditions (Kanso et al 2002;Boone et al 1995;Cheng and Li 2009;Pollock et al 2007).…”
Section: Introductionmentioning
confidence: 99%
“…The soil samples were stored in a thermostatic container at 4 u C and transported to the laboratory. For enrichment, 10 g soil was added to a sterile bottle containing 50 ml sterilized mineral salts medium [MSM; containing (l 21 ) 0.6 g NaH 2 PO 4 , 0.25 g NH 4 Cl, 0.1 g KCl, 2.5 g NaHCO 3 , 10.0 ml vitamin stock solution and 10.0 ml mineral stock solution (Li et al, 2009), pH 7.2] supplemented with 10 mM ferrihydrite and 10 mM acetate as electron acceptor and donor, respectively. The bottle was purged with N 2 /CO 2 (80 : 20, v/v) for 30 min, sealed with a butyl-rubber stopper and an aluminium cap and incubated at 30 u C. After the colour of the soil suspension changed to dark grey, the enriched culture was diluted serially (from 10 21 to 10 210 ).…”
mentioning
confidence: 99%