ArticleApplied and environmental microbiology2014
New model for electron flow for sulfate reduction in Desulfovibrio alaskensis G20.
Article in Applied and environmental microbiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
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Who cites it
25 citing papers in PubMed, 82 citations in OpenAlex.
- Proteomic Evidence for Biofilm-Mediated Copper Stress Adaptation in Oleidesulfovibrio alaskensis G20.Environmental microbiology · 2026Article
- Linking NrfD/PsrC-like architecture to energy conservation: Functional residues in the quinone reactive QrcABCD complex of sulfate-reducing bacteria.Protein science : a publication of the Protein Society · 2026Article
- Genome announcement of sulfate-reducingMicrobiology resource announcements · 2026Article
- pH-dependent genotypic and phenotypic variability inApplied and environmental microbiology · 2025Article
- Two marine sulfur-reducing bacteria co-culture is essential for productive infection by a T4-likeHeliyon · 2024Article
- Microbial induced wettability alteration with implications for Underground Hydrogen Storage.Scientific reports · 2024Article
- Physiological potential and evolutionary trajectories of syntrophic sulfate-reducing bacterial partners of anaerobic methanotrophic archaea.PLoS biology · 2023Article
- Microbial hydrogen consumption leads to a significant pH increase under high-saline-conditions: implications for hydrogen storage in salt caverns.Scientific reports · 2023Article
- Integration of text mining and biological network analysis: Identification of essential genes in sulfate-reducing bacteria.Frontiers in microbiology · 2023Article
- Selective bacterial separation of critical metals: towards a sustainable method for recycling lithium ion batteries.Green chemistry : an international journal and green chemistry resource : GC · 2022Article
- Establishment of Genome Based Criteria for Classification of the Family Desulfovibrionaceae and Proposal of Two Novel Genera,Frontiers in microbiology · 2022Article
- Insights into Advancements and Electrons Transfer Mechanisms of Electrogens in Benthic Microbial Fuel Cells.Membranes · 2020Review
- Anion transport as a target of adaption to perchlorate in sulfate-reducing communities.The ISME journal · 2020Article
- Shotgun proteomic analysis of nanoparticle-synthesizingMicrobiology (Reading, England) · 2019Article
- Role of APS reductase in biogeochemical sulfur isotope fractionation.Nature communications · 2019Article
- Resistance and Resilience of Sulfidogenic Communities in the Face of the Specific Inhibitor Perchlorate.Frontiers in microbiology · 2019Article
- Electron carriers in microbial sulfate reduction inferred from experimental and environmental sulfur isotope fractionations.The ISME journal · 2018Article
- Coordinated response of the Desulfovibrio desulfuricans 27774 transcriptome to nitrate, nitrite and nitric oxide.Scientific reports · 2017Article
- The Role of Localized Acidity Generation in Microbially Influenced Corrosion.Current microbiology · 2017Review
- Gene expression profiling of microbial activities and interactions in sediments under haloclines of E. Mediterranean deep hypersaline anoxic basins.The ISME journal · 2016Article
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
To understand the energy conversion activities of the anaerobic sulfate-reducing bacteria, it is necessary to identify the components involved in electron flow. The importance of the abundant type I tetraheme cytochrome c3 (TpIc3) as an electron carrier during sulfate respiration was questioned by the previous isolation of a null mutation in the gene encoding TpIc3, cycA, in Desulfovibrio alaskensis G20. Whereas respiratory growth of the CycA mutant with lactate and sulfate was little affected, growth with pyruvate and sulfate was significantly impaired. We have explored the phenotype of the CycA mutant through physiological tests and transcriptomic and proteomic analyses. Data reported here show that electrons from pyruvate oxidation do not reach adenylyl sulfate reductase, the enzyme catalyzing the first redox reaction during sulfate reduction, in the absence of either CycA or the type I cytochrome c3:menaquinone oxidoreductase transmembrane complex, QrcABCD. In contrast to the wild type, the CycA and QrcA mutants did not grow with H2 or formate and sulfate as the electron acceptor. Transcriptomic and proteomic analyses of the CycA mutant showed that transcripts and enzymes for the pathway from pyruvate to succinate were strongly decreased in the CycA mutant regardless of the growth mode. Neither the CycA nor the QrcA mutant grew on fumarate alone, consistent with the omics results and a redox regulation of gene expression. We conclude that TpIc3 and the Qrc complex are D. alaskensis components essential for the transfer of electrons released in the periplasm to reach the cytoplasmic adenylyl sulfate reductase and present a model that may explain the CycA phenotype through confurcation of electrons.
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