Evidence map›Paper›PMID 22456444›Full record

ArticleThe ISME journal2012

Spatial and temporal dynamics of the microbial community in the Hanford unconfined aquifer.

Xueju Lin, James McKinley, Charles T Resch, Rachael Kaluzny, Christian L Lauber, James Fredrickson, Rob Knight, Allan Konopka

Abstract read
In one paragraph

Article in The ISME journal, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
–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

42 citing papers in PubMed.

  1. Microbial ecology of shallow groundwater ecosystems.Nature reviews. Microbiology · 2026
    Review
  2. Article
  3. Article
  4. Article
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  6. Article
  7. Review
  8. Geological activity shapes the microbiome in deep-subsurface aquifers by advection.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  9. Article
  10. Article
  11. Article
  12. Effects ofFrontiers in microbiology · 2021
    Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. 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

8 authors.

Xueju LinBiological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352, USA.
James McKinley
Charles T Resch
Rachael Kaluzny
Christian L Lauber
James Fredrickson
Rob Knight
Allan Konopka

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pyrosequencing analysis of 16S rRNA genes was used to study temporal dynamics of groundwater bacteria and archaea over 10 months within three well clusters separated by ~30 m and located 250 m from the Columbia River on the Hanford Site, WA. Each cluster contained three wells screened at different depths ranging from 10 to 17 m that differed in hydraulic conductivities. Representative samples were selected for analyses of prokaryotic 16S and eukaryotic 18S rRNA gene copy numbers. Temporal changes in community composition occurred in all nine wells over the 10-month sampling period. However, there were particularly strong effects near the top of the water table when the seasonal rise in the Columbia River caused river water intrusion at the top of the aquifer. The occurrence and disappearance of some microbial assemblages (such as Actinobacteria ACK-M1) were correlated with river water intrusion. This seasonal impact on microbial community structure was greater in the shallow saturated zone than deeper zone in the aquifer. Spatial and temporal patterns for several 16S rRNA gene operational taxonomic units associated with particular physiological functions (for example, methane oxidizers and metal reducers) suggests dynamic changes in fluxes of electron donors and acceptors over an annual cycle. In addition, temporal dynamics in eukaryotic 18S rRNA gene copies and the dominance of protozoa in 18S clone libraries suggest that bacterial community dynamics could be affected not only by the physical and chemical environment but also by top-down biological control.

Indexed as

Bacterial Physiological PhenomenaBiodiversityWater MicrobiologyArchaeaBacteriaEukaryotaGroundwaterPhylogenyRiversRNA, Ribosomal, 16SRNA, Ribosomal, 18SSeasonsRNA, Ribosomal, 16SRNA, Ribosomal, 18S

Identifiers

PMID22456444
PMCPMC3498919

What OpenQuestion holds

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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.