The Biologically Relevant Coordination Chemistry of Iron and Nitric Oxide: Electronic Structure and Reactivity

Chemical Reviews, Journal Year: 2021, Volume and Issue: 121(24), P. 14682 - 14905

Published: Dec. 13, 2021

Nitric oxide (NO) is an important signaling molecule that involved in a wide range of physiological and pathological events biology. Metal coordination chemistry, especially with iron, at the heart many biological transformations involving NO. A series heme proteins, nitric synthases (NOS), soluble guanylate cyclase (sGC), nitrophorins, are responsible for biosynthesis, sensing, transport Alternatively, NO can be generated from nitrite by heme- copper-containing reductases (NIRs). The NO-bearing small molecules such as nitrosothiols dinitrosyl iron complexes (DNICs) serve alternative vehicle storage transport. Once formed, rich reaction chemistry leads to variety activities including reduction or non-heme iron-containing protein post-translational modifications DNICs. Much our understanding reactivity metal sites biology mechanisms these has come elucidation geometric electronic structures chemical synthetic model systems, synergy biochemical biophysical studies on relevant proteins themselves. This review focuses recent advancements not only have improved roles but also provided foundations biomedical research bio-inspired catalyst design energy science.

Language: Английский

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DIET-like mutualism of Geobacter and methanogens at specific electrode potential boosts production of both methane and hydrogen from propionate

Water Research, Journal Year: 2023, Volume and Issue: 235, P. 119911 - 119911

Published: March 23, 2023

Language: Английский

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Surveying membrane landscapes: a new look at the bacterial cell surface

Nature Reviews Microbiology, Journal Year: 2023, Volume and Issue: 21(8), P. 502 - 518

Published: Feb. 24, 2023

Language: Английский

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Bacteria-induced mineral precipitation: a mechanistic review

Microbiology, Journal Year: 2021, Volume and Issue: 167(4)

Published: April 19, 2021

Micro-organisms contribute to Earth’s mineral deposits through a process known as bacteria-induced precipitation (BIMP). It is complex phenomenon that can occur result of variety physiological activities influence the supersaturation state and nucleation catalysis in environment. There good understanding BIMP induced by bacterial metabolism control metal redox states enzyme-mediated reactions such ureolysis. However, other forms often cannot be attributed single pathway but rather appear passive activity, where minerals form metabolic by-products surface interactions within surrounding from processes has formed basis many new innovative biotechnologies, soil consolidation, heavy remediation, restoration historic buildings even self-healing concrete. these applications date have primarily incorporated BIMP-capable bacteria sampled environment, while detailed investigations underpinning mechanisms been lagging behind. This review covers our current mechanistic indirectly highlights complexity connectivity between different cellular involved. Ultimately, insights will facilitate rational design application-specific technologies deepen how are shaping world.

Language: Английский

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Bioelectrochemical Ammoniation Coupled with Microbial Electrolysis for Nitrogen Recovery from Nitrate in Wastewater

Environmental Science & Technology, Journal Year: 2019, Volume and Issue: 54(5), P. 3002 - 3011

Published: Dec. 31, 2019

Nitrate-N in wastewaters is hard to be recovered because it difficult volatilize with an opposite charge ammonium. Here, we have proved the feasibility of dissimilatory nitrate reduction ammonia (DNRA) by easy-acclimated mixed electroactive bacteria, achieving highest DNRA efficiency 44%. It was then coupled microbial electrolysis concentrate ammonium a factor 4 catholyte for recovery. The abundance bacteria biofilm before addition, especially Geobacter spp., found determine efficiency. As main competitors growth denitrifiers more sensitive C/N ratios. community contrarily showed stable and recoverable ammoniation performance over ratios ranging from 0.5 8.0. A strong competition electrode on electron donors observed at early stage (15 d) formation, which can weakened when mature 40 d. Quantitative PCR significant increase nirS nrfA transcripts process. inhibited significantly after depletion while still upregulated. These findings provided novel way recover nitrate-N using organic wastes as both donor power, has broader implications sustainable wastewater treatment ecology nitrogen cycling.

Language: Английский

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Degradation of organic contaminants and steel corrosion by the dissimilatory metal-reducing microorganisms Shewanella and Geobacter spp.

International Biodeterioration & Biodegradation, Journal Year: 2019, Volume and Issue: 147, P. 104842 - 104842

Published: Nov. 22, 2019

Language: Английский

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Genome-Based Taxonomic Rearrangement of the Order Geobacterales Including the Description of Geomonas azotofigens sp. nov. and Geomonas diazotrophica sp. nov.

Frontiers in Microbiology, Journal Year: 2021, Volume and Issue: 12

Published: Sept. 30, 2021

Geobacterales is a recently proposed order comprising members who originally belonged to the well-known family Geobacteraceae, which key group in terrestrial ecosystems involved biogeochemical cycles and has been widely investigated bioelectrochemistry bioenergy fields. Previous studies have illustrated taxonomic structure of most this based on genomic phylogeny; however, several are still pendent or chaotic status owing lack genome sequences. To address issue, we performed reassignment using currently available sequences, along with description two novel paddy soil-isolated strains, designated Red51T Red69T, phylogenetically located within order. Phylogenomic analysis 120 ubiquitous single-copy proteins robustly separated species Geobacter luticola from other known genera placed genus Oryzomonas (fam. Geobacteraceae) into 'Pseudopelobacteraceae'; thus, Geomobilimonas proposed, 'Pseudopelobacteraceae' was emended. Moreover, comparisons similarity indexes, including average amino acid identity (AAI), percentage conserved protein (POCP), nucleotide (ANI), showed proper thresholds as boundaries values 70%, 65%, 74% for AAI, POCP, ANI, respectively. Based this, three argillaceus, pelophilus, chapellei should be genera, names Geomobilibacter, Geoanaerobacter, Pelotalea In addition, isolated strains Geomonas, shared higher than those boundaries, but lower each their neighbors. Taken together phenotypic chemotaxonomic characteristics similar Geomonas species, these represent azotofigens sp. nov. diazotrophica

Language: Английский

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Role of microbial community and plant species in performance of plant microbial fuel cells

Renewable and Sustainable Energy Reviews, Journal Year: 2021, Volume and Issue: 152, P. 111697 - 111697

Published: Sept. 29, 2021

Language: Английский

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Two key Geobacter species of wastewater-enriched electroactive biofilm respond differently to electric field

Water Research, Journal Year: 2022, Volume and Issue: 213, P. 118185 - 118185

Published: Feb. 12, 2022

Language: Английский

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Novel insights into the anaerobic digestion of propionate via Syntrophobacter fumaroxidans and Geobacter sulfurreducens: Process and mechanism

Water Research, Journal Year: 2021, Volume and Issue: 200, P. 117270 - 117270

Published: May 19, 2021

Language: Английский

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