ReviewFEMS microbiology ecology2024
Widespread occurrence of dissolved oxygen anomalies, aerobic microbes, and oxygen-producing metabolic pathways in apparently anoxic environments.
Review in FEMS microbiology ecology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
17 citing papers in PubMed.
- Oxygen production as an electron overflow pathway in ammonia-oxidizing archaea.Science advances · 2026Article
- Article
- Microbial consortia mediating lignocellulose turnover and denitrification in eutrophic lake sediment enrichments.mSystems · 2026Article
- Electrogenic CH4 oxidation on a bioanode: putative extracellular electron transport system in Methylobacter sp.FEMS microbiology ecology · 2026Article
- Deep subsurface rock-hosted chemolithotrophic bacterial communities exhibited differential COScientific reports · 2026Article
- Uncovering hidden phylo- and ecogenomic diversity of the widespread methanotrophic genus Methylobacter.FEMS microbiology ecology · 2026Article
- Revisiting the greatness of Earth's great oxidation.Communications earth & environment · 2026Review
- Dissolution of Fe(III)-rich basaltic glass in microbial cultures of iron-reducing microorganisms.Frontiers in microbiology · 2026Article
- Metabolic potential of newly isolated bacterial species from the deep subsurface of the Iberian Pyrite Belt.Frontiers in microbiology · 2026Article
- Subsurface Life on Earth as a Key to Unlock Extraterrestrial Mysteries.Microbial biotechnology · 2025Review
- Isolation of 'International journal of systematic and evolutionary microbiology · 2025Article
- Sediments From a Seasonally Euxinic Coastal Ecosystem Show High Nitrogen Cycling Potential.Environmental microbiology · 2025Article
- Editorial: celebrating the biogeosphere at the joint meeting of International Societies for Environmental Biogeochemistry and Subsurface Microbiology.FEMS microbiology ecology · 2025Article
- Cold seeps are potential hotspots of deep-sea nitrogen loss driven by microorganisms across 21 phyla.Nature communications · 2025Article
- Essential nucleic acid omics: a theoretical foundation for early-stage users.Frontiers in bioinformatics · 2025Review
- Lipid biomarkers reveal dominance of aerobic methanotrophy in a continental serpentinizing system.Frontiers in microbiology · 2025Article
- A global comparison of surface and subsurface microbiomes reveals large-scale biodiversity gradients, and a marine-terrestrial divide.Science advances · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
Abstract
Nearly all molecular oxygen (O2) on Earth is produced via oxygenic photosynthesis by plants or photosynthetically active microorganisms. Light-independent O2 production, which occurs both abiotically, e.g. through water radiolysis, or biotically, e.g. through the dismutation of nitric oxide or chlorite, has been thought to be negligible to the Earth system. However, recent work indicates that O2 is produced and consumed in dark and apparently anoxic environments at a much larger scale than assumed. Studies have shown that isotopically light O2 can accumulate in old groundwaters, that strictly aerobic microorganisms are present in many apparently anoxic habitats, and that microbes and metabolisms that can produce O2 without light are widespread and abundant in diverse ecosystems. Analysis of published metagenomic data reveals that the enzyme putatively capable of nitric oxide dismutation forms four major phylogenetic clusters and occurs in at least 16 bacterial phyla, most notably the Bacteroidota. Similarly, a re-analysis of published isotopic signatures of dissolved O2 in groundwater suggests in situ production in up to half of the studied environments. Geochemical and microbiological data support the conclusion that "dark oxygen production" is an important and widespread yet overlooked process in apparently anoxic environments with far-reaching implications for subsurface biogeochemistry and ecology.
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Registered trials
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.