ArticleFrontiers in microbiology2016
Selenite Reduction by Anaerobic Microbial Aggregates: Microbial Community Structure, and Proteins Associated to the Produced Selenium Spheres.
Article in Frontiers in microbiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
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Who cites it
23 citing papers in PubMed, 87 citations in OpenAlex.
- From selenite to selenium nanoparticle: comparative biosynthetic mechanisms across Bacillus and a roadmap for Bacillus licheniformis.World journal of microbiology & biotechnology · 2026Review
- Tolerance to heavy metals of bacteria from Brazilian deep aquatic environments.Archives of microbiology · 2026Article
- Bioremediation of Produced Water by a Polyextremophilic, Heavy-Metal-ResistantACS ES&T water · 2026Article
- Mutual dosing of tungsten, molybdenum and selenium impact anaerobic digestion microbiome.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2026Article
- Biogenic synthesis and transcriptomic insights into selenium nanoparticle formation by Lactiplantibacillus plantarum SMB14 isolated from goat manure.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2026Article
- Nanoprobe synchrotron X-ray fluorescence microscopy reveals selenium-rich spherical structure in mouse retinal pigment epithelium.Scientific reports · 2025Article
- Diversity of Bacterial Communities in Seleniferous Soils and Their Impact on Plant Growth and Selenium Toxicity.Current microbiology · 2025Article
- Unveiling the innovative green synthesis mechanism of selenium nanoparticles by exploiting intracellular protein elongation factor Tu fromJournal of Zhejiang University. Science. B · 2024Article
- Unveiling the vital role of soil microorganisms in selenium cycling: a review.Frontiers in microbiology · 2024Review
- Selenite bioreduction with concomitant green synthesis of selenium nanoparticles by a selenite resistant EPS and siderophore producing terrestrial bacterium.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2023Article
- Article
- Use of Microbial Consortia in Bioremediation of Metalloid Polluted Environments.Microorganisms · 2023Review
- Bioconversion of inorganic selenium to less toxic selenium forms by microbes: A review.Frontiers in bioengineering and biotechnology · 2023Review
- Tellurite and Selenite: how can these two oxyanions be chemically different yet so similar in the way they are transformed to their metal forms by bacteria?Biological research · 2022Review
- Article
- Combined foliar and soil selenium fertilizer improves selenium transport and the diversity of rhizosphere bacterial community in oats.Environmental science and pollution research international · 2021Article
- Cadmium Selenide Formation Influences the Production and Characteristics of Extracellular Polymeric Substances of Anaerobic Granular Sludge.Applied biochemistry and biotechnology · 2021Article
- Biomolecular composition of capping layer and stability of biogenic selenium nanoparticles synthesized by five bacterial species.Microbial biotechnology · 2021Article
- Antibacterial Composite Materials Based on the Combination of Polyhydroxyalkanoates With Selenium and Strontium Co-substituted Hydroxyapatite for Bone Regeneration.Frontiers in bioengineering and biotechnology · 2021Article
- Proteins enriched in charged amino acids control the formation and stabilization of selenium nanoparticles in Comamonas testosteroni S44.Scientific reports · 2018Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Certain types of anaerobic granular sludge, which consists of microbial aggregates, can reduce selenium oxyanions. To envisage strategies for removing those oxyanions from wastewater and recovering the produced elemental selenium (Se(0)), insights into the microbial community structure and synthesis of Se(0) within these microbial aggregates are required. High-throughput sequencing showed that Veillonellaceae (c.a. 20%) and Pseudomonadaceae (c.a.10%) were the most abundant microbial phylotypes in selenite reducing microbial aggregates. The majority of the Pseudomonadaceae sequences were affiliated to the genus Pseudomonas. A distinct outer layer (∼200 μm) of selenium deposits indicated that bioreduction occurred in the outer zone of the microbial aggregates. In that outer layer, SEM analysis showed abundant intracellular and extracellular Se(0) (nano)spheres, with some cells having high numbers of intracellular Se(0) spheres. Electron tomography showed that microbial cells can harbor a single large intracellular sphere that stretches the cell body. The Se(0) spheres produced by the microorganisms were capped with organic material. X-ray photoelectron spectroscopy (XPS) analysis of extracted Se(0) spheres, combined with a mathematical approach to analyzing XPS spectra from biological origin, indicated that proteins and lipids were components of the capping material associated to the Se(0) spheres. The most abundant proteins associated to the spheres were identified by proteomic analysis. Most of the proteins or peptide sequences capping the Se(0) spheres were identified as periplasmic outer membrane porins and as the cytoplasmic elongation factor Tu protein, suggesting an intracellular formation of the Se(0) spheres. In view of these and previous findings, a schematic model for the synthesis of Se(0) spheres by the microorganisms inhabiting the granular sludge is proposed.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.