ArticleApplied and environmental microbiology2014
Polysulfides as intermediates in the oxidation of sulfide to sulfate by Beggiatoa spp.
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 32 papers.
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32 citing papers in PubMed, 122 citations in OpenAlex.
- Article
- Microbial respiration - a biomineral perspective.FEMS microbiology ecology · 2025Review
- Light and polyphosphate kinase 2 cooperatively regulate the production of zero-valent sulfur in a deep-sea bacterium.mSystems · 2025Article
- Diversity and abundance of filamentous and non-filamentous "Applied and environmental microbiology · 2025Article
- Mechanism of Intracellular Elemental Sulfur Oxidation inInternational journal of molecular sciences · 2024Article
- Phylogeny and Metabolic Potential of New Giant Sulfur Bacteria of the FamilyInternational journal of molecular sciences · 2024Article
- Multi-wavelength Raman microscopy of nickel-based electron transport in cable bacteria.Frontiers in microbiology · 2024Article
- Polysulfide Concentration and Chain Length in the Biological Desulfurization Process: Effect of Biomass Concentration and the Sulfide Loading Rate.Environmental science & technology · 2023Article
- Blue light promotes zero-valent sulfur production in a deep-sea bacterium.The EMBO journal · 2023Article
- Spatiotemporal Dynamics of Bacterial Taxonomic and Functional Profiles in Estuarine Intertidal Soils of China Coastal Zone.Microbial ecology · 2023Article
- A deep-sea sulfate-reducing bacterium generates zero-valent sulfur via metabolizing thiosulfate.mLife · 2022Article
- Review
- The Pathway of Sulfide Oxidation to Octasulfur Globules in the Cytoplasm of Aerobic Bacteria.Applied and environmental microbiology · 2022Article
- Microbiologically influenced corrosion of stainless steel independent of sulfate-reducing bacteria.Frontiers in microbiology · 2022Article
- Giant sulfur bacteria (Beggiatoaceae) from sediments underlying the Benguela upwelling system host diverse microbiomes.PloS one · 2021Article
- Characterization ofFrontiers in microbiology · 2021Article
- Enrichment of Autotrophic Denitrifiers From Anaerobic Sludge Using Sulfurous Electron Donors.Frontiers in microbiology · 2021Article
- A novel bacterial thiosulfate oxidation pathway provides a new clue about the formation of zero-valent sulfur in deep sea.The ISME journal · 2020Article
- Mangrove Sediment Microbiome: Adaptive Microbial Assemblages and Their Routed Biogeochemical Processes in Yunxiao Mangrove National Nature Reserve, China.Microbial ecology · 2019Article
- Low frequency Raman Spectroscopy for micron-scale and in vivo characterization of elemental sulfur in microbial samples.Scientific reports · 2019Article
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Zero-valent sulfur is a key intermediate in the microbial oxidation of sulfide to sulfate. Many sulfide-oxidizing bacteria produce and store large amounts of sulfur intra- or extracellularly. It is still not understood how the stored sulfur is metabolized, as the most stable form of S(0) under standard biological conditions, orthorhombic α-sulfur, is most likely inaccessible to bacterial enzymes. Here we analyzed the speciation of sulfur in single cells of living sulfide-oxidizing bacteria via Raman spectroscopy. Our results showed that under various ecological and physiological conditions, all three investigated Beggiatoa strains stored sulfur as a combination of cyclooctasulfur (S8) and inorganic polysulfides (Sn(2-)). Linear sulfur chains were detected during both the oxidation and reduction of stored sulfur, suggesting that Sn(2-) species represent a universal pool of bioavailable sulfur. Formation of polysulfides due to the cleavage of sulfur rings could occur biologically by thiol-containing enzymes or chemically by the strong nucleophile HS(-) as Beggiatoa migrates vertically between oxic and sulfidic zones in the environment. Most Beggiatoa spp. thus far studied can oxidize sulfur further to sulfate. Our results suggest that the ratio of produced sulfur and sulfate varies depending on the sulfide flux. Almost all of the sulfide was oxidized directly to sulfate under low-sulfide-flux conditions, whereas only 50% was oxidized to sulfate under high-sulfide-flux conditions leading to S(0) deposition. With Raman spectroscopy we could show that sulfate accumulated in Beggiatoa filaments, reaching intracellular concentrations of 0.72 to 1.73 M.
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