ArticleApplied and environmental microbiology2004
Shewanella oneidensis MR-1 restores menaquinone synthesis to a menaquinone-negative mutant.
Article in Applied and environmental microbiology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 50 citations in OpenAlex.
- An Unconventional Melanin Biosynthesis Pathway in Ustilago maydis.Applied and environmental microbiology · 2021Article
- Pyonitrins A-D: Chimeric Natural Products Produced byJournal of the American Chemical Society · 2019Article
- Solving a shuttle mystery.eLife · 2019Article
- Article
- Microbial Community and Metabolic Activity in Thiocyanate Degrading Low Temperature Microbial Fuel Cells.Frontiers in microbiology · 2018Article
- A Novel Inorganic Sulfur Compound MetabolizingFrontiers in microbiology · 2018Article
- Extracellular electron transport-mediated Fe(III) reduction by a community of alkaliphilic bacteria that use flavins as electron shuttles.Applied and environmental microbiology · 2014Article
- From iron oxides to infections.Geobiology · 2008Review
- Shewanella secretes flavins that mediate extracellular electron transfer.Proceedings of the National Academy of Sciences of the United States of America · 2008Article
- Secretion of flavins by Shewanella species and their role in extracellular electron transfer.Applied and environmental microbiology · 2008Article
- Characterization of protein-protein interactions involved in iron reduction by Shewanella oneidensis MR-1.Applied and environmental microbiology · 2007Article
- Characterization of metabolism in the Fe(III)-reducing organism Geobacter sulfurreducens by constraint-based modeling.Applied and environmental microbiology · 2006Article
- Shewanella oneidensis MR-1 uses overlapping pathways for iron reduction at a distance and by direct contact under conditions relevant for Biofilms.Applied and environmental microbiology · 2005Article
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The mechanisms underlying the use of insoluble electron acceptors by metal-reducing bacteria, such as Shewanella oneidensis MR-1, are currently under intensive study. Current models for shuttling electrons across the outer membrane (OM) of MR-1 include roles for OM cytochromes and the possible excretion of a redox shuttle. While MR-1 is able to release a substance that restores the ability of a menaquinone (MK)-negative mutant, CMA-1, to reduce the humic acid analog anthraquinone-2,6-disulfonate (AQDS), cross-feeding experiments conducted here showed that the substance released by MR-1 restores the growth of CMA-1 on several soluble electron acceptors. Various strains derived from MR-1 also release this substance; these include mutants lacking the OM cytochromes OmcA and OmcB and the OM protein MtrB. Even though strains lacking OmcB and MtrB cannot reduce Fe(III) or AQDS, they still release a substance that restores the ability of CMA-1 to use MK-dependent electron acceptors, including AQDS and Fe(III). Quinone analysis showed that this released substance restores MK synthesis in CMA-1. This ability to restore MK synthesis in CMA-1 explains the cross-feeding results and challenges the previous hypothesis that this substance represents a redox shuttle that facilitates metal respiration.
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