Evidence map›Paper›PMID 26082763›Full record

ArticleFrontiers in microbiology2015

Seasonal variation in denitrification and dissimilatory nitrate reduction to ammonia process rates and corresponding key functional genes along an estuarine nitrate gradient.

Cindy J Smith, Liang F Dong, John Wilson, Andrew Stott, A Mark Osborn, David B Nedwell

Abstract read
In one paragraph

Article in Frontiers in microbiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing 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

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

  1. Pooled it
  2. Aerobic dissimilatory nitrate reduction to ammonium inApplied and environmental microbiology · 2026
    Article
  3. Review
  4. InvasiveEco-Environment & Health · 2023
    Article
  5. Effects of Florfenicol onAntibiotics (Basel, Switzerland) · 2023
    Article
  6. Article
  7. Dissimilatory nitrate reduction and functional genes in two subtropical rivers, China.Environmental science and pollution research international · 2021
    Article
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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.

Cindy J SmithDepartment of Biological Sciences, University of Essex , Colchester, UK ; Department of Animal and Plant Sciences, The University of Sheffield , Sheffield, UK.
Liang F DongDepartment of Biological Sciences, University of Essex , Colchester, UK.
John WilsonDepartment of Animal and Plant Sciences, The University of Sheffield , Sheffield, UK.
Andrew StottNERC Life Sciences Mass Spectrometry Facility, Centre for Ecology and Hydrology, Lancaster Environment Centre , Lancaster, UK.
A Mark OsbornDepartment of Animal and Plant Sciences, The University of Sheffield , Sheffield, UK.
David B NedwellDepartment of Biological Sciences, University of Essex , Colchester, UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This research investigated spatial-temporal variation in benthic bacterial community structure, rates of denitrification and dissimilatory nitrate reduction to ammonium (DNRA) processes and abundances of corresponding genes and transcripts at three sites-the estuary-head, mid-estuary and the estuary mouth (EM) along the nitrate gradient of the Colne estuary over an annual cycle. Denitrification rates declined down the estuary, while DNRA rates were higher at the estuary head and middle than the EM. In four out of the six 2-monthly time-points, rates of DNRA were greater than denitrification at each site. Abundance of gene markers for nitrate-reduction (nitrate reductase narG and napA), denitrification (nitrite reductase nirS) and DNRA (DNRA nitrite reductase nrfA) declined along the estuary with significant relationships between denitrification and nirS abundance, and DNRA and nrfA abundance. Spatially, rates of denitrification, DNRA and corresponding functional gene abundances decreased along the estuary. However, temporal correlations between rate processes and functional gene and transcript abundances were not observed.

Indexed as

denitrification/DNRAnapAnarGnirSnrfA(RT)-Q-PCR

Identifiers

PMID26082763
PMCPMC4451412

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Registered trials

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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.