Feedback inhibition derived from hydrogen sulfide in microbial sulfidogenic process via elemental sulfur disproportionation

Water Research, Journal Year: 2025, Volume and Issue: unknown, P. 123740 - 123740

Published: April 1, 2025

---

Microorganisms uptake zero-valent sulfur via membrane lipid dissolution of octasulfur and intracellular solubilization as persulfide

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 922, P. 170504 - 170504

Published: Feb. 1, 2024

Language: Английский

---

Chemistry of Coenzyme F420 in Environment

Journal of Molecular Chemistry., Journal Year: 2024, Volume and Issue: 4(2)

Published: April 29, 2024

Coenzyme F420 is one of the ancient and rare coenzymes. The unique electrochemical properties are compared with ubiquitous flavin coenzymes FMN (flavin mononucleotide), FAD adenine dinucleotide), nicotinamide coenzyme NADP+ (nicotinamide dinucleotide phosphate). 7,8-didemethyl-8-hydroxy-5-deazaflavin core structurally biosynthetically related to FAD, but chemical reactions similar NADP+. role cofactors in methanogenesis methanotrophic methane short alkane oxidations widely increasing understand mechanism global warming climate change. URN:NBN:sciencein.jmc.2024.696

Language: Английский

---

Risk of hydrogen sulfide pollution from pressure release resulting from landfill mining

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 477, P. 135405 - 135405

Published: Aug. 3, 2024

Language: Английский

---

Sulfate-Driven Microbial Collaboration for Synergistic Remediation of Chloroethene-Heavy Metal Pollution

Water Research, Journal Year: 2024, Volume and Issue: 268, P. 122738 - 122738

Published: Nov. 2, 2024

Language: Английский

---

Microbially Driven Sulfur Cycling in the River–Wetland–Ocean Continuum

Ocean-Land-Atmosphere Research, Journal Year: 2023, Volume and Issue: 2

Published: Jan. 1, 2023

Sulfur (S) is an essential biological element, and S cycling mainly driven by metabolically versatile microorganisms. The river–wetland–ocean (RWO) continuum here defined as the dynamically connected region with estuary, wetland, near-marine ecosystems, it considered a hotspot of biogeochemical cycling, especially major biotope for cycling. Various forms oxidation states compounds are ideal electron donors or acceptors widely utilized microorganisms via inorganic organic S-cycling processes. pathways intimately linked to carbon (C), nitrogen, phosphorus, metal cycles, playing crucial roles in C sequestration, greenhouse gas emissions through various mechanisms RWO continuum. This review provides comprehensive understanding microbially We first illustrate importance this continuum, including key functional processes (e.g., dissimilatory sulfate reduction, oxidation, dimethylsulfoniopropionate production, catabolism) well their corresponding flux characteristics. In particular, we emphasize recent advances coupling cycle other element cycles. further propose important perspectives developing microbiome engineering microbial communities integration current knowledge about multidimensional diversity, cultivation, evolution, interaction providing new window on applying microbiome-based biotechnologies overcome global climate challenges.

Language: Английский

---

Enhanced Biogenic Sulfidation of Zero-Valent Iron in Columns: Implications for Promoting Dechlorination in Permeable Reactive Barriers

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(49), P. 20951 - 20961

Published: Nov. 27, 2023

Biogenic sulfidation of zero-valent iron (ZVI) using sulfate reducing bacteria (SRB) has shown enhanced dechlorination rates comparable to those produced by chemical sulfidation. However, controlling and sustaining biogenic enhance in situ are poorly understood. Detailed interactions between SRB ZVI were examined for 4 months column experiments under conditions. proliferation changes surface properties characterized along the flow paths. The results show that can stimulate activity removing excessive free sulfide (S2-), addition lowering reduction potential. also hinders downgradient movement via electrostatic repulsion, restricting presence near upgradient interface. Dissolved organic carbon (e.g., >2.2 mM) was essential intense columns. zone appeared promote formation polysulfides. FeSx deposition increased S content on surfaces ∼3-fold, corresponding 3-fold 2-fold improvements trichloroethylene degradation rate electron efficiency batch tests. Elucidation enhances sustained permeable reactive barrier.

Language: Английский

---

Sulfidation−reoxidation enhances heavy metal immobilization by vivianite

Water Research, Journal Year: 2024, Volume and Issue: 263, P. 122195 - 122195

Published: July 31, 2024

Language: Английский

---

PVA-SA-maifanite activator toward Robust sulfate reduction in challenging environments

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 500, P. 157180 - 157180

Published: Oct. 30, 2024

Language: Английский

---

Co-occurrence of direct and indirect extracellular electron transfer mechanisms during electroactive respiration in a dissimilatory sulfate reducing bacterium

Microbiology Spectrum, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 5, 2024

ABSTRACT Understanding the extracellular electron transfer mechanisms of electroactive bacteria could help determine their potential in microbial fuel cells (MFCs) and syntrophy with redox-active minerals natural environments. However, to electrodes by sulfate-reducing (SRB) remain underexplored. Here, we utilized double-chamber MFCs carbon cloth investigate Desulfovibrio vulgaris Hildenborough ( Dv H), a model SRB, under varying lactate sulfate concentrations using different H mutants. Our MFC setup indicated that can harvest electrons from at anode them cathode, where further utilize these electrons. Patterns current production compared variations donor/acceptor ratios cathode suggested attachment electrode biofilm density were critical for effective electricity generation. Electron microscopy analysis biofilms filaments resemble pili attach facilitate cell electrode. Proteomics profiling adapted respiration presenting more pili- flagellar-related proteins. The mutant deletion major pilus-producing gene yielded less voltage far both anodic catholic electrodes, suggesting importance transfer. deficiency formation, however, did not eliminate indicating existence indirect Untargeted metabolomics showed flavin-based metabolites, shuttles. IMPORTANCE We explored application investigated its (EET) mechanism. also conducted untargeted proteomics profiling, offering insights into how DvH adapts metabolically donors acceptors. An understanding EET mechanism metabolic flexibility holds promise future uses including bioremediation or enhancing efficacy wastewater treatment applications.

Language: Английский

---