Bacterial Manganese Reduction and Growth with Manganese Oxide as the Sole Electron Acceptor

Myers, Charles R.; Nealson, Kenneth H.

doi:10.1126/science.240.4857.1319

Cited by 1,246 publications

(998 citation statements)

References 21 publications

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“…It has been demonstrated that in cultures of Shewanella putrefaciens, iron oxide-surface contact was required for bacterial cells to mediate reduction of these metals (85). The rate of reaction depended on the type of oxide film under attack (69).…”

Section: Metal-reducing Bacteria (Mrb)mentioning

confidence: 99%

Recent advances in the study of biocorrosion: an overview

1999

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Biocorrosion processes at metal surfaces are associated with microorganisms, or the products of their metabolic activities including enzymes, exopolymers, organic and inorganic acids, as well as volatile compounds such as ammonia or hydrogen sulfide. These can affect cathodic and/or anodic reactions, thus altering electrochemistry at the biofilm/metal interface. Various mechanisms of biocorrosion, reflecting the variety of physiological activities carried out by different types of microorganisms, are identified and recent insights into these mechanisms reviewed. Many modern investigations have centered on the microbially-influenced corrosion of ferrous and copper alloys and particular microorganisms of interest have been the sulfate-reducing bacteria and metal (especially manganese)-depositing bacteria. The importance of microbial consortia and the role of extracellular polymeric substances in biocorrosion are emphasized. The contribution to the study of biocorrosion of modern analytical techniques, such as atomic force microscopy, Auger electron, X-ray photoelectron and Mössbauer spectroscopy, attenuated total reflectance Fourier transform infrared spectroscopy and microsensors, is discussed.

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Section: Metal-reducing Bacteria (Mrb)mentioning

confidence: 99%

Recent advances in the study of biocorrosion: an overview

1999

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“…The facultative bacterium Shewanella oneidensis MR-1, isolated from Oneida Lake 2 sediments (Myers and Nealson 1988), is able to use many organic carbon sources as electron 3 donors (e.g., lactate, pyruvate, propionate, acetate, formate, and serine) and can reduce a variety 4 of soluble or solid compounds, including iron III, manganese IV, nitrate, nitrite, thiosulfate, 5 trimethyl-amine N-oxide, thiosulfate, fumarate, uranium, and Cr(VI) (Scott and Nealson 1994;6 Venkateswaran et al 1999). Because of its metabolic versatility and its ability to reduce metals 7 to less mobile forms, this bacterium has been considered for use in bioremediation of subsurface 8 sites contaminated with metals and, as such, has been studied extensively over the last decade 9 the genome of S. oneidensis MR-1 was recently sequenced (Heidelberg et al 2002).…”

mentioning

confidence: 99%

Evaluation of the effects of various culture conditions on Cr(VI) reduction by Shewanella oneidensis MR‐1 in a novel high‐throughput mini‐bioreactor

Tang

Laidlaw²,

Gani

et al. 2006

Biotech & Bioengineering

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1The growth and Cr(VI) reduction by Shewanella oneidensis MR-1 was examined using a 2 mini-bioreactor system that independently monitors and controls pH, dissolved oxygen, and 3 temperature for each of its 24, 10-mL reactors. Independent monitoring and control of each 4 reactor in the cassette allows the exploration of a matrix of environmental conditions known to 5 influence S. oneidensis chromium reduction. S. oneidensis MR-1 grew in minimal medium 6 without amino acid or vitamin supplementation under aerobic conditions but required serine and 7 glycine supplementation under anaerobic conditions. Growth was inhibited by dissolved oxygen 8 concentrations >80%. Lactate transformation to acetate was enhanced by low concentration of 9 dissolved oxygen during the logarithmic growth phase. Between 11 and 35°C, the growth rate 10 obeyed the Arrhenius reaction rate-temperature relationship, with a maximum growth rate 11 occurring at 35°C. S. oneidensis MR-1 was able to grow over a wide range of pH (6-9). At 12 neutral pH and temperatures ranging from 30-35°C, S. oneidensis MR-1 reduced 100 µM Cr(VI) 13 to Cr(III) within 20 minutes in the exponential growth phase, and the growth rate was not 14 affected by the addition of chromate; it reduced chromate even faster at temperatures between 35 15 and 39°C. At low temperatures (<25°C), acidic (pH<6.5), or alkaline (pH>8.5) conditions, 100 16 µM Cr(VI) strongly inhibited growth and chromate reduction. The mini-bioreactor system 17 enabled the rapid determination of these parameters reproducibly and easily by performing very 18 few experiments. Besides its use for examining parameters of interest to environmental 19 remediation, the device will also allow one to quickly assess parameters for optimal production 20 of recombinant proteins or secondary metabolites 21

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“…Fe-reducing microorganisms are difficult to track in-situ because they belong to different phylogenetic lineages ) and they lack a unique molecular marker specific for Fe-reduction. Early investigations identified some microorganisms capable of reducing Fe oxides in pure culture studies (de Castro and Ehrlich 1970;Brock and Gustafson 1976;Lovley and Phillips 1988;Myers and Nealson 1988) including sulfur and sulfate reducing bacteria Roden et al 1993). Subsequent microbial diversity studies using primers targeting the 16S ribosomal RNA (rRNA) gene demonstrated that members of the gamma and delta-Proteobacteria, including known isolates, were often detected in a variety of Fe-rich environments including sediments (DiChristina and DeLong 1993; Coates et al 1996).…”

Section: Introductionmentioning

confidence: 99%

Potentially Active Iron, Sulfur, and Sulfate Reducing Bacteria in Skagerrak and Bothnian Bay Sediments

Reyes

Schneider

Thürmer

et al. 2017

Geomicrobiology Journal

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In many marine surface sediments, the reduction of manganese (Mn) and iron (Fe) oxides is obscured by sulfate reduction, which is regarded as the predominant anaerobic microbial respiration process. However, many dissimilatory sulfate and sulfur reducing microorganisms are known to utilize alternative electron acceptors such as metal oxides. In this study, we tested whether sulfate and sulfur reducing bacteria are linked to metal oxide reduction based on biogeochemical modeling of porewater concentration profiles of Mn 2C and Fe 2C in Bothnian Bay (BB) and Skagerrak (SK) sediments. Steady-state modeling of Fe 2C and Mn 2C porewater profiles revealed zones of net Fe (0-9 cm BB; »10 and 20 cm SK) and Mn (0-5 cm BB; 2-8 cm SK) species transformations. 16S rRNA pyrosequencing analysis of the in-situ community showed that Desulfobacteraceae, Desulfuromonadaceae and Desulfobulbaceae were present in the zone of Fereduction of both sediments. Rhodobacteraceae were also detected at high relative abundance in both sediments. BB sediments appeared to harbor a greater diversity of potential Fe-reducers compared to SK. Additionally, when the upper 10 cm of sediment from the SK was incubated with lepidocrocite and acetate, Desulfuromonas was the dominant bacteria. Real-time quantitative polymerase chain reaction (qPCR) results showed decreasing dsrA gene copy numbers with depth coincided with decreased Fe-reduction activity. Our results support the idea that sulfur and sulfate reducing bacteria contribute to Fe-reduction in the upper centimeters of both sediments.

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Bacterial Manganese Reduction and Growth with Manganese Oxide as the Sole Electron Acceptor

Cited by 1,246 publications

References 21 publications

Recent advances in the study of biocorrosion: an overview

Recent advances in the study of biocorrosion: an overview

Evaluation of the effects of various culture conditions on Cr(VI) reduction by Shewanella oneidensis MR‐1 in a novel high‐throughput mini‐bioreactor

Potentially Active Iron, Sulfur, and Sulfate Reducing Bacteria in Skagerrak and Bothnian Bay Sediments

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