Evidence map›Paper›PMID 25822483›Full record

ArticleThe ISME journal2015

Metatranscriptomic census of active protists in soils.

Stefan Geisen, Alexander T Tveit, Ian M Clark, Andreas Richter, Mette M Svenning, Michael Bonkowski, Tim Urich

Abstract read
In one paragraph

Article in The ISME journal, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 85 papers.

0numbers the graph read from it
0cells of the map it votes in
85citing 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

85 citing papers in PubMed.

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25 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

7 authors.

Stefan GeisenDepartment of Terrestrial Ecology, Institute of Zoology, University of Cologne, Cologne, Germany.ORCID http://orcid.org/0000-0003-0734-727X
Alexander T TveitDepartment of Arctic and Marine Biology, UiT The Arctic University of Norway, Tromsø, Norway.
Ian M ClarkDepartment of AgroEcology, Rothamsted Research, Harpenden, Hertfordshire, UK.
Andreas RichterDepartment of Microbiology and Ecosystem Sciences, University of Vienna, Vienna, Austria.
Mette M SvenningDepartment of Arctic and Marine Biology, UiT The Arctic University of Norway, Tromsø, Norway.
Michael BonkowskiDepartment of Terrestrial Ecology, Institute of Zoology, University of Cologne, Cologne, Germany.
Tim UrichDepartment of Ecogenomics and Systems Biology, University of Vienna, Vienna, Austria.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The high numbers and diversity of protists in soil systems have long been presumed, but their true diversity and community composition have remained largely concealed. Traditional cultivation-based methods miss a majority of taxa, whereas molecular barcoding approaches employing PCR introduce significant biases in reported community composition of soil protists. Here, we applied a metatranscriptomic approach to assess the protist community in 12 mineral and organic soil samples from different vegetation types and climatic zones using small subunit ribosomal RNA transcripts as marker. We detected a broad diversity of soil protists spanning across all known eukaryotic supergroups and revealed a strikingly different community composition than shown before. Protist communities differed strongly between sites, with Rhizaria and Amoebozoa dominating in forest and grassland soils, while Alveolata were most abundant in peat soils. The Amoebozoa were comprised of Tubulinea, followed with decreasing abundance by Discosea, Variosea and Mycetozoa. Transcripts of Oomycetes, Apicomplexa and Ichthyosporea suggest soil as reservoir of parasitic protist taxa. Further, Foraminifera and Choanoflagellida were ubiquitously detected, showing that these typically marine and freshwater protists are autochthonous members of the soil microbiota. To the best of our knowledge, this metatranscriptomic study provides the most comprehensive picture of active protist communities in soils to date, which is essential to target the ecological roles of protists in the complex soil system.

Indexed as

BiodiversityEukaryotaGene Expression ProfilingPhylogenyRNA, RibosomalSoilRNA, RibosomalSoil

Identifiers

PMID25822483
PMCPMC4579471

What OpenQuestion holds

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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.