Reductive Dissolution of Fe2O3 by Saccharolytic Clostridia and Bacillus polymyxa under anaerobic Conditions

Hammann, R.; Ottow, J. C. G.

doi:10.1002/jpln.19741370205

Cited by 48 publications

(23 citation statements)

References 15 publications

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“…Starkey and Halverson (289) found that Fe(III) was reduced in anaerobic cultures of Clostridium sporogenes or E. coli growing in a glucose or peptone medium, and Roberts (272) found that Bacillus polymyxa reduced Fe(III) while fermenting glucose. Subsequent studies found that a wide variety of fermentative microorganisms reduced Fe(III) or Mn(IV) during anaerobic growth (45,46,128,158,159,226,245,246), and organisms capable of reducing Fe(III) and Mn(IV) under aerobic culture conditions have also been described (76,82,86,316).…”

Section: Fermentative Fe(hii) and Mn(iv) Reducersmentioning

confidence: 99%

“…The form of the Mn(IV) oxides is also likely to affect the rate and extent of Mn(IV) reduction, but this does not appear to have been investigated systematically. Some Fe(III)-reducing microorganisms grown on complex medium reduced highly crystalline Fe(III) oxide forms such as hematite (Fe2O3) and goethite (a-FeOOH) (11,76,128,155,226,245,246,256,320). In contrast, with acetate as the electron acceptor, GS-15 could only actively reduce (within 4 days) natural or synthetic poorly crystalline Fe(III) oxides (198).…”

Section: Immobilization Of Uraniummentioning

confidence: 99%

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Dissimilatory Fe(III) and Mn(IV) Reduction

Lovley

Holmes

Nevin

2004

Advances in Microbial Physiology

1,471

1,061

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Section: Fermentative Fe(hii) and Mn(iv) Reducersmentioning

confidence: 99%

Section: Immobilization Of Uraniummentioning

confidence: 99%

Dissimilatory Fe(III) and Mn(IV) Reduction

Lovley

Holmes

Nevin

2004

Advances in Microbial Physiology

1,471

1,061

View full text Add to dashboard Cite

“…Ottow and coworkers (Hammann and Ottow 1974;Ottow and Munch 1977;Munch and Ottow 1983) have suggested that Fe(III) is not reduced until microbially reducible Mn(IV) is depleted because Fe(III)-reducing microorganisms preferentially reduce Mn(IV). This conclusion was based on the finding that Mn(IV) was reduced and no Fe(II) accumulated when Mn(IV) was added to cultures of Fe(III)-reducing organisms.…”

mentioning

confidence: 97%

Manganese inhibition of microbial iron reduction in anaerobic sediments

Lovley

Phillips

1988

Geomicrobiology Journal

161

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“…In laboratory studies, pure cultures of clostridia were among the first organisms shown to reduce Fe(III) oxides (Hammann and Ottow 1974;Starkey and Halvorson 1927). Many clostridia reduce iron during fermentative growth (Dobbin et al 1999;Hammann and Ottow 1974;Lovley 1995;Starkey and Halvorson 1927).…”

Section: Introductionmentioning

confidence: 99%

Syntrophic Effects in a Subsurface Clostridial Consortium on Fe(III)-(Oxyhydr)oxide Reduction and Secondary Mineralization

Shah

Lin

Kukkadapu

et al. 2013

Geomicrobiology Journal

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In this study, we cultivated from subsurface sediments an anaerobic clostridial consortium that was composed of a fermentative Fe-reducer Clostridium species (designated as strain FGH) and a novel sulfate-reducing bacterium belonging to the clostridia family Vellionellaceae (designated as strain RU4). In pure culture, Clostridium sp. strain FGH mediated the reductive dissolution/transformation of iron oxides during growth on peptone. When Clostridium sp. FGH was grown with strain RU4 on peptone, the rates of iron oxide reduction were significantly higher. Iron reduction by the consortium was mediated by multiple mechanisms, including biotic reduction by Clostridium sp. FGH and biotic/abiotic reactions involving biogenic sulfide formed by strain RU4. The Clostridium sp. FGH produced hydrogen during fermentation, and the presence of hydrogen inhibited growth and iron reduction activity. The sulfate-reducing partner strain RU4 was stimulated by the presence of H 2 and generated reactive sulfide which promoted the chemical reduction of the iron oxides. Characterization of Fe(II) mineral products showed the formation of nanoparticulate magnetite during ferrihydrite reduction, and the precipitation of iron sulfides during goethite and hematite reduction. The results suggest an important pathway for iron reduction and secondary mineralization by fermentative sulfate-reducing microbial consortia through syntrophy-driven biotic/abiotic reactions with biogenic sulfide.

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Reductive Dissolution of Fe₂O₃ by Saccharolytic Clostridia and Bacillus polymyxa under anaerobic Conditions

Cited by 48 publications

References 15 publications

Dissimilatory Fe(III) and Mn(IV) Reduction

Dissimilatory Fe(III) and Mn(IV) Reduction

Manganese inhibition of microbial iron reduction in anaerobic sediments

Syntrophic Effects in a Subsurface Clostridial Consortium on Fe(III)-(Oxyhydr)oxide Reduction and Secondary Mineralization

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