Iron-Oxidizing Bacteria: An Environmental and Genomic Perspective

Emerson, David; Fleming, Emily J.; McBeth, Joyce

doi:10.1146/annurev.micro.112408.134208

Cited by 659 publications

(575 citation statements)

References 130 publications

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“…Cultivated strains exhibit potentials for chemolithoautotrophy and mixotrophy (Emerson et al, 2010). All cultivated species of Leptothrix described so far are able to oxidize iron and manganese in ways of chemolithoautotrophy or chemoorganotrophy, and are known for forming sheathes where iron/ manganese deposits accumulate (Emerson et al, 2010). Given that the DWDS water mains in this study were built with cast iron or ductile iron (Table 2 and Supplementary Figure S2), these OTUs likely came from corroded pipe scales.…”

Section: Core Community Compositionmentioning

confidence: 94%

“…Gallionella isolates were the first freshwater iron-oxidizing bacteria described. Cultivated strains exhibit potentials for chemolithoautotrophy and mixotrophy (Emerson et al, 2010). All cultivated species of Leptothrix described so far are able to oxidize iron and manganese in ways of chemolithoautotrophy or chemoorganotrophy, and are known for forming sheathes where iron/ manganese deposits accumulate (Emerson et al, 2010).…”

Section: Core Community Compositionmentioning

confidence: 99%

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Core-satellite populations and seasonality of water meter biofilms in a metropolitan drinking water distribution system

et al. 2015

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Drinking water distribution systems (DWDSs) harbor the microorganisms in biofilms and suspended communities, yet the diversity and spatiotemporal distribution have been studied mainly in the suspended communities. This study examined the diversity of biofilms in an urban DWDS, its relationship with suspended communities and its dynamics. The studied DWDS in Urbana, Illinois received conventionally treated and disinfected water sourced from the groundwater. Over a 2-year span, biomass were sampled from household water meters (n = 213) and tap water (n = 20) to represent biofilm and suspended communities, respectively. A positive correlation between operational taxonomic unit (OTU) abundance and occupancy was observed. Examined under a 'core-satellite' model, the biofilm community comprised 31 core populations that encompassed 76.7% of total 16 S rRNA gene pyrosequences. The biofilm communities shared with the suspended community highly abundant and prevalent OTUs, which related to methano-/methylotrophs (i.e., Methylophilaceae and Methylococcaceae) and aerobic heterotrophs (Sphingomonadaceae and Comamonadaceae), yet differed by specific core populations and lower diversity and evenness. Multivariate tests indicated seasonality as the main contributor to community structure variation. This pattern was resilient to annual change and correlated to the cyclic fluctuations of core populations. The findings of a distinctive biofilm community assemblage and methano-/methyltrophic primary production provide critical insights for developing more targeted water quality monitoring programs and treatment strategies for groundwater-sourced drinking water systems.

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Section: Core Community Compositionmentioning

confidence: 94%

Section: Core Community Compositionmentioning

confidence: 99%

Core-satellite populations and seasonality of water meter biofilms in a metropolitan drinking water distribution system

et al. 2015

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“…The microbiology and corrosion effect of SRB and iron oxidizers have recently been reviewed Emerson et al, 2010;Enning and Garrelfs, 2013). Genomic analysis might provide interesting information on the genetics and regulation of the metabolic processes leading to corrosion, but there are only few genomes available of pure cultures of microbes published related to corrosion and a few molecular studies on corroded materials, which will be discussed in the 'Perspectives' section.…”

Section: Metal Corrosionmentioning

confidence: 99%

The dual role of microbes in corrosion

2014

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Corrosion is the result of a series of chemical, physical and (micro) biological processes leading to the deterioration of materials such as steel and stone. It is a world-wide problem with great societal and economic consequences. Current corrosion control strategies based on chemically produced products are under increasing pressure of stringent environmental regulations. Furthermore, they are rather inefficient. Therefore, there is an urgent need for environmentally friendly and sustainable corrosion control strategies. The mechanisms of microbially influenced corrosion and microbially influenced corrosion inhibition are not completely understood, because they cannot be linked to a single biochemical reaction or specific microbial species or groups. Corrosion is influenced by the complex processes of different microorganisms performing different electrochemical reactions and secreting proteins and metabolites that can have secondary effects. Information on the identity and role of microbial communities that are related to corrosion and corrosion inhibition in different materials and in different environments is scarce. As some microorganisms are able to both cause and inhibit corrosion, we pay particular interest to their potential role as corrosion-controlling agents. We show interesting interfaces in which scientists from different disciplines such as microbiology, engineering and art conservation can collaborate to find solutions to the problems caused by corrosion.

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“…Neutrophilic, microaerophilic, iron-oxidizing bacteria are widely distributed in iron-rich freshwater and marine environments, such as groundwater seeps, wetlands and deep-sea hydrothermal vents (Emerson et al, 2010). Many of these microbes are chemolithoautotrophs that play a role in iron and carbon cycling in these environments.…”

mentioning

confidence: 99%

Ferriphaselus amnicola gen. nov., sp. nov., a neutrophilic, stalk-forming, iron-oxidizing bacterium isolated from an iron-rich groundwater seep

Kato

Krepski

Chan

et al. 2014

International Journal of Systematic and Evolutionary Microbiology

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A neutrophilic, stalk-forming, iron-oxidizing bacterium, strain OYT1T, which was isolated from a groundwater seep in Ohyato Park, Tokyo, Japan, was subjected to taxonomic analysis. OYT1T was a motile, bean-shaped, Gram-negative bacterium that was able to grow at 8–30 °C (optimally at 25–30 °C) and at pH 5.6–7.3 (optimally at pH 6.1–6.5). The strain grew microaerobically and autotrophically. Major cellular fatty acids detected were C16 : 1ω7c/C16 : 1ω6c and C16 : 0. The total DNA G+C content was 57.6 mol%. 16S rRNA gene sequence analysis revealed that strain OYT1T was affiliated with the class Betaproteobacteria and clustered with iron-oxidizing bacteria isolated from groundwater seeps and wetlands and with uncultured clones detected in freshwater iron-rich environments. Based on the phenotypic and phylogenetic characteristics of strain OYT1T, we propose that the strain represents a novel species in a new genus, for which the name Ferriphaselus amnicola gen. nov., sp. nov. is proposed; the type strain of Ferriphaselus amnicola is OYT1T ( = JCM 18545T = DSM 26810T).

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Iron-Oxidizing Bacteria: An Environmental and Genomic Perspective

Cited by 659 publications

References 130 publications

Core-satellite populations and seasonality of water meter biofilms in a metropolitan drinking water distribution system

Core-satellite populations and seasonality of water meter biofilms in a metropolitan drinking water distribution system

The dual role of microbes in corrosion

Ferriphaselus amnicola gen. nov., sp. nov., a neutrophilic, stalk-forming, iron-oxidizing bacterium isolated from an iron-rich groundwater seep

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