Evidence map›Paper›PMID 23811518›Full record

ArticleApplied and environmental microbiology2013

Functional gene analysis of freshwater iron-rich flocs at circumneutral pH and isolation of a stalk-forming microaerophilic iron-oxidizing bacterium.

Shingo Kato, Clara Chan, Takashi Itoh, Moriya Ohkuma

Abstract read
In one paragraph

Article in Applied and environmental microbiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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.

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.

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3 · Its place in the literature

Who cites it

25 citing papers in PubMed.

  1. Article
  2. Article
  3. Isolation of 'International journal of systematic and evolutionary microbiology · 2025
    Article
  4. Article
  5. Article
  6. Applied and environmental microbiology · 2024
    Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Insights into Carbon Metabolism Provided by FluorescenceApplied and environmental microbiology · 2018
    Article
  18. Article
  19. Article
  20. Article
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

4 authors.

Shingo KatoJapan Collection of Microorganisms, RIKEN BioResource Center, Tsukuba, Ibaraki, Japan. skato@jcm.riken.jp
Clara Chan
Takashi Itoh
Moriya Ohkuma

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Iron-rich flocs often occur where anoxic water containing ferrous iron encounters oxygenated environments. Culture-independent molecular analyses have revealed the presence of 16S rRNA gene sequences related to diverse bacteria, including autotrophic iron oxidizers and methanotrophs in iron-rich flocs; however, the metabolic functions of the microbial communities remain poorly characterized, particularly regarding carbon cycling. In the present study, we cultivated iron-oxidizing bacteria (FeOB) and performed clone library analyses of functional genes related to carbon fixation and methane oxidization (cbbM and pmoA, respectively), in addition to bacterial and archaeal 16S rRNA genes, in freshwater iron-rich flocs at groundwater discharge points. The analyses of 16S rRNA, cbbM, and pmoA genes strongly suggested the coexistence of autotrophic iron oxidizers and methanotrophs in the flocs. Furthermore, a novel stalk-forming microaerophilic FeOB, strain OYT1, was isolated and characterized phylogenetically and physiologically. The 16S rRNA and cbbM gene sequences of OYT1 are related to those of other microaerophilic FeOB in the family Gallionellaceae, of the Betaproteobacteria, isolated from freshwater environments at circumneutral pH. The physiological characteristics of OYT1 will help elucidate the ecophysiology of microaerophilic FeOB. Overall, this study demonstrates functional roles of microorganisms in iron flocs, suggesting several possible linkages between Fe and C cycling.

Indexed as

Microbial ConsortiaArchaeal ProteinsBacterial ProteinsDNA, ArchaealDNA, BacterialDNA, RibosomalFresh WaterGallionellaceaeHydrogen-Ion ConcentrationIronMolecular Sequence DataOxidation-ReductionRNA, Ribosomal, 16SSequence Analysis, DNAArchaeal ProteinsBacterial ProteinsDNA, ArchaealDNA, BacterialDNA, RibosomalIronRNA, Ribosomal, 16S

Identifiers

PMID23811518
PMCPMC3753938

What OpenQuestion holds

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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.