Cited by 772Geochemistry and Elemental AnalysisMetal Extraction and BioleachingMicrobial Fuel Cells and Bioremediation

Geomicrobiology of manganese(II) oxidation

Tebo, Bradley M., Johnson, Hope A., McCarthy, James K., Templeton, Alexis S.·2005·Trends in Microbiology

Abstract

Mn(II)-oxidizing microbes have an integral role in the biogeochemical cycling of manganese, iron, nitrogen, carbon, sulfur, and several nutrients and trace metals. There is great interest in mechanistically understanding these cycles and defining the importance of Mn(II)-oxidizing bacteria in modern and ancient geochemical environments. Linking Mn(II) oxidation to cellular function, although still enigmatic, continues to drive efforts to characterize manganese biomineralization. Recently, complexed-Mn(III) has been shown to be a transient intermediate in Mn(II) oxidation to Mn(IV), suggesting that the reaction might involve a unique multicopper oxidase system capable of a two-electron oxidation of the substrate. In biogenic and abiotic synthesis experiments, the application of synchrotron-based X-ray scattering and spectroscopic techniques has significantly increased our understanding of the oxidation state and relatively amorphous structure (i.e. delta-MnO(2)-like) of biogenic oxides, providing a new blueprint for the structural signature of biogenic Mn oxides.

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Crossref · 10.1016/j.tim.2005.07.009

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  • The supply of MnO2 was likely also not significant until after the GOE, due to the oxidation of dissolved Mn(II) requiring the presence of free dissolved oxygen and an aerobic microbial catalyst.

    “The supply of MnO2 was likely also not significant until after the GOE, due to the oxidation of dissolved Mn(II) requiring the presence of free dissolved oxygen and an aerobic microbial catalyst (e.g., Tebo et al., 2005)”

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Authors
Tebo, B. M., Johnson, H. A., McCarthy, J. K., & Templeton, A. S.
Affiliations
Scripps Institution of Oceanography (US)
Venue
Trends in Microbiology
Publisher
Elsevier BV
Published
2005-09
Volume
13
Issue
9
Pages
421-428
ISSN
0966-842X (ISSN-L)
OpenAlex
W2097597887
Cited by
772
References
59
Citations by year
2026: 46 · 2025: 56 · 2024: 45 · 2023: 49 · 2022: 50 · 2021: 55 · 2020: 51 · 2019: 49 · 2018: 40 · 2017: 37 · 2016: 45 · 2015: 38 · 2014: 35 · 2013: 28 · 2012: 27
FWCI
2.76
Type
journal article
Language
en
Open access
closed
Locations
  • Trends in Microbiology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Science Foundation
  • University of California, San Diego
  • National Institute of Environmental Health Sciences (P42ES010337, ES10337)
  • Division of Chemistry
Topics
  • Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › Geochemistry and Elemental Analysis
  • Physical Sciences › Engineering › Biomedical Engineering › Metal Extraction and Bioleaching
  • Physical Sciences › Environmental Science › Environmental Engineering › Microbial Fuel Cells and Bioremediation
Keywords
manganese(II) oxidation, multicopper oxidase, biogenic manganese oxides, manganese oxidation state, trace metal cycling
MeSH terms
Bacteria, Environmental Microbiology, Manganese, Oxidation-Reduction, Geologic Sediments

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