ArticleThe ISME journal2022
Biological manganese-dependent sulfide oxidation impacts elemental gradients in redox-stratified systems: indications from the Black Sea water column.
Article in The ISME journal, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed, 22 citations in OpenAlex.
- Review
- Potential for Manganese Oxide Driven Anaerobic Methane Oxidation in Sediments of a Seasonally Euxinic Coastal Basin.Estuaries and coasts : journal of the Estuarine Research Federation · 2026Article
- Metabolic biochemical models of NmSystems · 2025Article
- Microbial responses to ocean deoxygenation: Revisiting the impacts on organic carbon cycling.iScience · 2025Review
- Unexpected carbon utilization activity of sulfate-reducing microorganisms in temperate and permanently cold marine sediments.The ISME journal · 2024Article
- Biological Oxidation of Manganese Mediated by the FungusInternational journal of molecular sciences · 2023Article
- Effects of Algal Extracellular Polysaccharides on the Formation of Filamentous Manganese Oxide Particles in the Near-Bottom Layer of Lake Biwa.Microorganisms · 2023Article
- Supplementation of Polymeric Reservoirs with Redox-Responsive Metallic Nanoparticles as a New Concept for the Smart Delivery of Insulin in Diabetes.Materials (Basel, Switzerland) · 2023Article
- Changes in the membrane lipid composition of a Sulfurimonas species depend on the electron acceptor used for sulfur oxidation.ISME communications · 2022Article
- Microbial NGeobiologyArticle
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Authors and funding
8 authors at 1 institution in 1 country.
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Abstract
The reduction of manganese oxide with sulfide in aquatic redox-stratified systems was previously considered to be mainly chemical, but recent isolation of the Black Sea isolate Candidatus Sulfurimonas marisnigri strain SoZ1 suggests an important role for biological catalyzation. Here we provide evidence from laboratory experiments, field data, and modeling that the latter process has a strong impact on redox zonation in the Black Sea. High relative abundances of Sulfurimonas spp. across the redoxcline in the central western gyre of the Black Sea coincided with the high-level expression of both the sulfide:quinone oxidoreductase gene (sqr, up to 93% expressed by Sulfurimonas spp.) and other sulfur oxidation genes. The cell-specific rate of manganese-coupled sulfide oxidation by Ca. S. marisnigri SoZ1 determined experimentally was combined with the in situ abundance of Sulfurimonas spp. in a one-dimensional numerical model to calculate the vertical sulfide distribution. Abiotic sulfide oxidation was too slow to counterbalance the sulfide flux from euxinic water. We conclude that microbially catalyzed Mn-dependent sulfide oxidation influences the element cycles of Mn, S, C, and N and therefore the prevalence of other functional groups of prokaryotes (e.g., anammox bacteria) in a sulfide-free, anoxic redox zone.
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