Evidence map›Paper›PMID 29423636›Full record

ArticleApplied microbiology and biotechnology2018

The use of extracellular DNA as a proxy for specific microbial activity.

Magdalena Nagler, Sabine Marie Podmirseg, Gareth Wyn Griffith, Heribert Insam, Judith Ascher-Jenull

Open access · hybridAbstract read
In one paragraph

Article in Applied microbiology and biotechnology, 2018. 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
5.6field-weighted citation impact, top 4% 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

25 citing papers in PubMed, 62 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

5 authors at 2 institutions in 3 countries.

Magdalena NaglerInstitute of Microbiology, Universität Innsbruck, Technikerstr. 25d, 6020, Innsbruck, Austria. magdalena.nagler@uibk.ac.at.ORCID http://orcid.org/0000-0002-4165-7290
Sabine Marie PodmirsegInstitute of Microbiology, Universität Innsbruck, Technikerstr. 25d, 6020, Innsbruck, Austria.
Gareth Wyn GriffithInstitute of Biological, Environmental and Rural Sciences (IBERS), Aberystwyth University, Aberystwyth, Wales, SY23 3DD, UK.
Heribert InsamInstitute of Microbiology, Universität Innsbruck, Technikerstr. 25d, 6020, Innsbruck, Austria.
Judith Ascher-JenullInstitute of Microbiology, Universität Innsbruck, Technikerstr. 25d, 6020, Innsbruck, Austria.
Universität Innsbruck · ATAberystwyth University · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The ubiquity and relevance of extracellular DNA (exDNA) are well-known and increasingly gaining importance in many fields of application such as medicine and environmental microbiology. Although sources and types of exDNA are manifold, ratios of specific DNA-molecules inside and outside of living cells can give reliable information about the activity of entire systems and of specific microbial groups or species. Here, we introduce a method to discriminate between internal (iDNA), as well as bound and free exDNA, and evaluate various DNA fractions and related ratios (ex:iDNA) regarding their applicability to be used as a fast, convenient, and reliable alternative to more tedious RNA-based activity measurements. In order to deal with microbial consortia that can be regulated regarding their activity, we tested and evaluated the proposed method in comparison to sophisticated dehydrogenase- and RNA-based activity measurements with two anaerobic microbial consortia (anaerobic fungi and syntrophic archaea and a microbial rumen consortium) and three levels of resolution (overall activity, total bacteria, methanogenic archaea). Furthermore, we introduce a 28S rRNA gene-specific primer set and qPCR protocol, targeting anaerobic fungi (Neocallimastigomycota). Our findings show that the amount of actively released free exDNA (fDNA) strongly correlates with different activity measurements and is thus suggested to serve as a proxy for microbial activity.

Indexed as

AerobiosisAnaerobiosisAnimalsArchaeaBacteriaCluster AnalysisDNA, ArchaealDNA, BacterialDNA, FungalDNA, RibosomalEnvironmental MicrobiologyFungiMicrobial ConsortiaMicrobiological TechniquesPhylogenyRNA, Ribosomal, 28SDNA, ArchaealDNA, BacterialDNA, FungalDNA, RibosomalRNA, Ribosomal, 28SAnaerobic fungiexDNA:iDNAExtracellular DNAMicrobial activityNeocallimastigomycotaqPCR

Identifiers

PMID29423636
PMCPMC5847193
OpenAlexW2787474991

What OpenQuestion holds

Textmetadata
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.