Evidence map›Paper›PMID 29901729›Full record

ArticleFEMS microbiology ecology2018

Metagenomic insights into diazotrophic communities across Arctic glacier forefields.

Maisie V Nash, Alexandre M Anesio, Gary Barker, Martyn Tranter, Gilda Varliero, Emiley A Eloe-Fadrosh, Torben Nielsen, Thomas Turpin-Jelfs, Liane G Benning, Patricia Sánchez-Baracaldo

Open access · hybridAbstract read
In one paragraph

Article in FEMS microbiology ecology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.7field-weighted citation impact, top 7% of its field
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

27 citing papers in PubMed, 52 citations in OpenAlex.

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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

10 authors at 3 institutions in 3 countries.

Maisie V NashSchool of Geographical Sciences, University of Bristol, UK.
Alexandre M AnesioSchool of Geographical Sciences, University of Bristol, UK.
Gary BarkerSchool of Life Sciences, University of Bristol, UK.
Martyn TranterSchool of Geographical Sciences, University of Bristol, UK.
Gilda VarlieroSchool of Life Sciences, University of Bristol, UK.
Emiley A Eloe-FadroshDOE Joint Genome Institute, 2800 Mitchell Drive, Walnut Creek, CA 94598, US.
Torben NielsenDOE Joint Genome Institute, 2800 Mitchell Drive, Walnut Creek, CA 94598, US.
Thomas Turpin-JelfsSchool of Geographical Sciences, University of Bristol, UK.
Liane G BenningGFZ German Research Centre for Geosciences, Telegrafenenberg, 14473 Potsdam, Germany.
Patricia Sánchez-BaracaldoSchool of Geographical Sciences, University of Bristol, UK.
University of Bristol · GBJoint Genome Institute · USUniversity of Leeds · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Microbial nitrogen fixation is crucial for building labile nitrogen stocks and facilitating higher plant colonisation in oligotrophic glacier forefield soils. Here, the diazotrophic bacterial community structure across four Arctic glacier forefields was investigated using metagenomic analysis. In total, 70 soil metagenomes were used for taxonomic interpretation based on 185 nitrogenase (nif) sequences, extracted from assembled contigs. The low number of recovered genes highlights the need for deeper sequencing in some diverse samples, to uncover the complete microbial populations. A key group of forefield diazotrophs, found throughout the forefields, was identified using a nifH phylogeny, associated with nifH Cluster I and III. Sequences related most closely to groups including Alphaproteobacteria, Betaproteobacteria, Cyanobacteria and Firmicutes. Using multiple nif genes in a Last Common Ancestor analysis revealed a diverse range of diazotrophs across the forefields. Key organisms identified across the forefields included Nostoc, Geobacter, Polaromonas and Frankia. Nitrogen fixers that are symbiotic with plants were also identified, through the presence of root associated diazotrophs, which fix nitrogen in return for reduced carbon. Additional nitrogen fixers identified in forefield soils were metabolically diverse, including fermentative and sulphur cycling bacteria, halophiles and anaerobes.

Indexed as

AlphaproteobacteriaArctic RegionsBacillotaBetaproteobacteriaCarbonCyanobacteriaIce CoverMetagenomicsNitrogenNitrogenaseNitrogen FixationPhylogenySoilSoil MicrobiologyCarbonNitrogenNitrogenaseSoil

Identifiers

PMID29901729
PMCPMC6054269
OpenAlexW2807718117

What OpenQuestion holds

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LicenceCC BY
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.