ArticleEnvironmental science & technology2013
Ligand-enhanced abiotic iron oxidation and the effects of chemical versus biological iron cycling in anoxic environments.
Article in Environmental science & technology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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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.
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Who cites it
16 citing papers in PubMed, 92 citations in OpenAlex.
- Evaluation of Thiobacillus denitrificans' sustainability in nitrate-reducing Fe(II) oxidation and the potential significance of Fe(II) as a growth-supporting reductant.FEMS microbiology ecology · 2025Article
- Low molecular weight organic acids stabilise siderite against oxidation and influence the composition of iron (oxyhydr)oxide oxidation products.Environmental science. Processes & impacts · 2025Article
- Electron Transfer Mechanism at the Interface of Multi-Heme Cytochromes and Metal Oxide.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023Article
- Tris-Co(II)-HACS omega · 2019Article
- Identifying and Quantifying the Intermediate Processes during Nitrate-Dependent Iron(II) Oxidation.Environmental science & technology · 2018Article
- Abiotic nitrate loss and nitrogenous trace gas emission from Chinese acidic forest soils.Environmental science and pollution research international · 2017Article
- Evidence for fungal and chemodenitrification based NNature communications · 2017Article
- Denitrification and Nitrate-Dependent Fe(II) Oxidation in Various Pseudogulbenkiania Strains.Microbes and environments · 2016Article
- Predicting the impact of promoter variability on regulatory outputs.Scientific reports · 2015Article
- Using non-enzymatic chemistry to influence microbial metabolism.Current opinion in chemical biology · 2015Review
- Article
- The drive to life on wet and icy worlds.Astrobiology · 2014Article
- Potential role of nitrite for abiotic Fe(II) oxidation and cell encrustation during nitrate reduction by denitrifying bacteria.Applied and environmental microbiology · 2014Article
- Fe(II) oxidation is an innate capability of nitrate-reducing bacteria that involves abiotic and biotic reactions.Journal of bacteriology · 2013Article
- Promotion of iron oxide reduction and extracellular electron transfer in Shewanella oneidensis by DMSO.PloS one · 2013Article
- Genome-enabled studies of anaerobic, nitrate-dependent iron oxidation in the chemolithoautotrophic bacterium Thiobacillus denitrificans.Frontiers in microbiology · 2013Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
Abstract
This study introduces a newly isolated, genetically tractable bacterium ( Pseudogulbenkiania sp. strain MAI-1) and explores the extent to which its nitrate-dependent iron-oxidation activity is directly biologically catalyzed. Specifically, we focused on the role of iron chelating ligands in promoting chemical oxidation of Fe(II) by nitrite under anoxic conditions. Strong organic ligands such as nitrilotriacetate and citrate can substantially enhance chemical oxidation of Fe(II) by nitrite at circumneutral pH. We show that strain MAI-1 exhibits unambiguous biological Fe(II) oxidation despite a significant contribution (∼30-35%) from ligand-enhanced chemical oxidation. Our work with the model denitrifying strain Paracoccus denitrificans further shows that ligand-enhanced chemical oxidation of Fe(II) by microbially produced nitrite can be an important general side effect of biological denitrification. Our assessment of reaction rates derived from literature reports of anaerobic Fe(II) oxidation, both chemical and biological, highlights the potential competition and likely co-occurrence of chemical Fe(II) oxidation (mediated by microbial production of nitrite) and truly biological Fe(II) oxidation.
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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.