When anaerobes encounter oxygen: mechanisms of oxygen toxicity, tolerance and defence

Nature Reviews Microbiology, Journal Year: 2021, Volume and Issue: 19(12), P. 774 - 785

Published: June 28, 2021

Language: Английский

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Non-syntrophic methanogenic hydrocarbon degradation by an archaeal species

Nature, Journal Year: 2021, Volume and Issue: 601(7892), P. 257 - 262

Published: Dec. 22, 2021

Language: Английский

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Methane formation driven by reactive oxygen species across all living organisms

Nature, Journal Year: 2022, Volume and Issue: 603(7901), P. 482 - 487

Published: March 9, 2022

Language: Английский

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Diversity and Evolution of Methane-Related Pathways in Archaea

Annual Review of Microbiology, Journal Year: 2022, Volume and Issue: 76(1), P. 727 - 755

Published: June 27, 2022

Methane is one of the most important greenhouse gases on Earth and holds an place in global carbon cycle. Archaea are only organisms that use methanogenesis to produce energy rely methyl-coenzyme M reductase complex (Mcr). Over last decade, new results have significantly reshaped our view diversity methane-related pathways Archaea. Many lineages synthesize or methane been identified across whole archaeal tree, leading a greatly expanded substrates mechanisms. In this review, we present state art these advances how they challenge established scenarios origin evolution methanogenesis, discuss potential trajectories may led strikingly wide range metabolisms.

Language: Английский

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How Microbes Evolved to Tolerate Oxygen

Trends in Microbiology, Journal Year: 2020, Volume and Issue: 29(5), P. 428 - 440

Published: Oct. 24, 2020

Language: Английский

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Roles and opportunities for microbial anaerobic oxidation of methane in natural and engineered systems

Energy & Environmental Science, Journal Year: 2021, Volume and Issue: 14(9), P. 4803 - 4830

Published: Jan. 1, 2021

Anaerobic oxidation of methane (AOM) is a crucial bioprocess in global mitigation. Adoption AOM an engineered system provides opportunity for the development methane-based biotechnologies.

Language: Английский

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Anaerobic Degradation of Alkanes by Marine Archaea

Annual Review of Microbiology, Journal Year: 2022, Volume and Issue: 76(1), P. 553 - 577

Published: Aug. 2, 2022

Alkanes are saturated apolar hydrocarbons that range from their simplest form, methane, to high-molecular-weight compounds. Although alkanes were once considered biologically recalcitrant under anaerobic conditions, microbiological investigations have now identified several microbial taxa can anaerobically degrade alkanes. Here we review recent discoveries in the oxidation of with a specific focus on archaea use methyl coenzyme M reductases activate substrates. Our understanding diversity uncultured alkane-oxidizing has expanded through environmental metagenomics and enrichment cultures syntrophic methane-, ethane-, propane-, butane-oxidizing marine sulfate-reducing bacteria. A recently cultured group directly couples long-chain alkane degradation methane formation, expanding substrates used for methanogenesis. This article summarizes rapidly growing knowledge diversity, physiology, habitat distribution alkane-degrading archaea.

Language: Английский

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High Proton Conductivity of MOF-808 Promotes Methane Production in Anaerobic Digestion

ACS Sustainable Chemistry & Engineering, Journal Year: 2022, Volume and Issue: 10(4), P. 1419 - 1429

Published: Jan. 10, 2022

Metal–organic frameworks (MOFs) are widely used in fuel cells, catalysis, and other fields. However, the influence mechanism of excellent properties MOFs on biomethane production still unclear. In this paper, MOF-808 was to study anaerobic digestion (AD) corn stalk, which increased biogas methane content by 11.06–39.82% 10.15–14.28%, respectively. The optimal effect reached adding 0.5 g/L MOF-808. −OH provided protons through protonation during AD, then, a continuous hydrogen bond network formed channels frameworks. led appearance Grotthuss mechanism, made dispersed H+ system rapidly transport outside methanogen membrane along inner surface sample nanopores, promoted interspecies transfer. formation transmembrane proton gradient improved metabolism level methanogens energy synthesis microorganisms. addition, had positive impact community function Due stable structure MOF-808, reflux anaerobically digested effluent is potential way recycling.

Language: Английский

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Stepwise pathway for early evolutionary assembly of dissimilatory sulfite and sulfate reduction

The ISME Journal, Journal Year: 2023, Volume and Issue: 17(10), P. 1680 - 1692

Published: July 19, 2023

Microbial dissimilatory sulfur metabolism utilizing sulfite reductases (Dsr) influenced the biochemical cycle during Earth's history and Dsr pathway is thought to be an ancient metabolic process. Here we performed comparative genomics, phylogenetic, synteny analyses of several proteins involved in or associated with across over 195,000 prokaryotic metagenomes. The results point archaeal origin minimal DsrABCMK(N) protein set, having as primordial function reduction. acquisition additional (DsrJOPT) increased complexity. Archaeoglobus would originally possess archaeal-type DsrAB were replaced bacterial reductive-type version, possibly at same time QmoABC DsrD proteins. Further inventions two Qmo complex types, which are more spread than previously thought, allowed microorganisms use sulfate electron acceptor. ability for oxidation evolved least twice, Chlorobi Proteobacteria being extant descendants these independent adaptations.

Language: Английский

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Cultivation and visualization of a methanogen of the phylum Thermoproteota

Nature, Journal Year: 2024, Volume and Issue: 632(8027), P. 1118 - 1123

Published: July 24, 2024

Language: Английский

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