ArticleApplied and environmental microbiology2015
Mechanisms involved in Fe(III) respiration by the hyperthermophilic archaeon Ferroglobus placidus.
Article in Applied and environmental microbiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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20 citing papers in PubMed, 43 citations in OpenAlex.
- The extreme halophilic archaeonJournal of bacteriology · 2026Article
- Large-scale prediction of outer-membrane multiheme cytochromes uncovers hidden diversity of electroactive bacteria and underlying pathways.Frontiers in microbiology · 2024Article
- Stepwise pathway for early evolutionary assembly of dissimilatory sulfite and sulfate reduction.The ISME journal · 2023Article
- Iron or sulfur respiration-an adaptive choice determining the fitness of a natronophilic bacteriumFrontiers in microbiology · 2023Article
- Screening for Hyperthermophilic Electrotrophs for the Microbial Electrosynthesis of Organic Compounds.Microorganisms · 2022Article
- An Archaea-specificeLife · 2022Article
- Electromicrobiology: the ecophysiology of phylogenetically diverse electroactive microorganisms.Nature reviews. Microbiology · 2022Review
- Comparative genomics reveals electron transfer and syntrophic mechanisms differentiating methanotrophic and methanogenic archaea.PLoS biology · 2022Review
- DiSCo: a sequence-based type-specific predictor of Dsr-dependent dissimilatory sulphur metabolism in microbial data.Microbial genomics · 2021Article
- Microbe-Mineral Interaction and Novel Proteins for Iron Oxide Mineral Reduction in the Hyperthermophilic Crenarchaeon Pyrodictium delaneyi.Applied and environmental microbiology · 2021Article
- The Proposed Molecular Mechanisms Used by Archaea for Fe(III) Reduction and Fe(II) Oxidation.Frontiers in microbiology · 2021Review
- Novel Extracellular Electron Transfer Channels in a Gram-Positive Thermophilic Bacterium.Frontiers in microbiology · 2020Article
- A Membrane-Bound Cytochrome EnablesmBio · 2019Article
- Expression of benzoyl-CoA metabolism genes in the lignocellulolytic host Caldicellulosiruptor bescii.AMB Express · 2019Article
- Genomic Insights Into Energy Metabolism ofFrontiers in microbiology · 2018Article
- Reduction and Morphological Transformation of Synthetic Nanophase Iron Oxide Minerals by Hyperthermophilic Archaea.Frontiers in microbiology · 2018Article
- Article
- Cytochromes c in Archaea: distribution, maturation, cell architecture, and the special case of Ignicoccus hospitalis.Frontiers in microbiology · 2015Article
- A Metagenomics-Based Metabolic Model of Nitrate-Dependent Anaerobic Oxidation of Methane by Methanoperedens-Like Archaea.Frontiers in microbiology · 2015Article
- The complete genome sequence and emendation of the hyperthermophilic, obligate iron-reducing archaeon "Geoglobus ahangari" strain 234(T).Standards in genomic sciences · 2015Article
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6 authors at 3 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
The hyperthermophilic archaeon Ferroglobus placidus can utilize a wide variety of electron donors, including hydrocarbons and aromatic compounds, with Fe(III) serving as an electron acceptor. In Fe(III)-reducing bacteria that have been studied to date, this process is mediated by c-type cytochromes and type IV pili. However, there currently is little information available about how this process is accomplished in archaea. In silico analysis of the F. placidus genome revealed the presence of 30 genes coding for putative c-type cytochrome proteins (more than any other archaeon that has been sequenced to date), five of which contained 10 or more heme-binding motifs. When cell extracts were analyzed by SDS-PAGE followed by heme staining, multiple bands corresponding to c-type cytochromes were detected. Different protein expression patterns were observed in F. placidus cells grown on soluble and insoluble iron forms. In order to explore this result further, transcriptomic studies were performed. Eight genes corresponding to multiheme c-type cytochromes were upregulated when F. placidus was grown with insoluble Fe(III) oxide compared to soluble Fe(III) citrate as an electron acceptor. Numerous archaella (archaeal flagella) also were observed on Fe(III)-grown cells, and genes coding for two type IV pilin-like domain proteins were differentially expressed in Fe(III) oxide-grown cells. This study provides insight into the mechanisms for dissimilatory Fe(III) respiration by hyperthermophilic archaea.
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