Evidence map›Paper›PMID 33526911›Full record

ReviewNature reviews. Microbiology2021

An evolving view on biogeochemical cycling of iron.

Andreas Kappler, Casey Bryce, Muammar Mansor, Ulf Lueder, James M Byrne, Elizabeth D Swanner

Abstract readReview
PubMed Publisher
In one paragraph

Review in Nature reviews. Microbiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 135 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
135citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

135 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Microbial ecology of shallow groundwater ecosystems.Nature reviews. Microbiology · 2026
    Review
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  20. A formal FeNature materials · 2026
    Article

75 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Andreas Kappler *Geomicrobiology, Center for Applied Geosciences, University of Tübingen, Tübingen, Germany. andreas.kappler@uni-tuebingen.de.ORCID http://orcid.org/0000-0002-3558-9500
Casey Bryce *School of Earth Sciences, University of Bristol, Bristol, UK.
Muammar MansorGeomicrobiology, Center for Applied Geosciences, University of Tübingen, Tübingen, Germany.ORCID http://orcid.org/0000-0001-7830-650X
Ulf LuederGeomicrobiology, Center for Applied Geosciences, University of Tübingen, Tübingen, Germany.
James M ByrneSchool of Earth Sciences, University of Bristol, Bristol, UK.
Elizabeth D SwannerDepartment of Geological and Atmospheric Sciences, Iowa State University, Ames, IA, USA.ORCID http://orcid.org/0000-0001-9507-0893

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Biogeochemical cycling of iron is crucial to many environmental processes, such as ocean productivity, carbon storage, greenhouse gas emissions and the fate of nutrients, toxic metals and metalloids. Knowledge of the underlying processes involved in iron cycling has accelerated in recent years along with appreciation of the complex network of biotic and abiotic reactions dictating the speciation, mobility and reactivity of iron in the environment. Recent studies have provided insights into novel processes in the biogeochemical iron cycle such as microbial ammonium oxidation and methane oxidation coupled to Fe(III) reduction. They have also revealed that processes in the biogeochemical iron cycle spatially overlap and may compete with each other, and that oxidation and reduction of iron occur cyclically or simultaneously in many environments. This Review discusses these advances with particular focus on their environmental consequences, including the formation of greenhouse gases and the fate of nutrients and contaminants.

Indexed as

BacteriaCarbon CycleEcosystemIronNitrogen CycleOxidation-ReductionIron

Identifiers

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.