Evidence map›Paper›PMID 27727277›Full record

ArticlePloS one2016

Changes in the Bacterial Community Structure of Remediated Anthracene-Contaminated Soils.

Laura Delgado-Balbuena, Juan M Bello-López, Yendi E Navarro-Noya, Analine Rodríguez-Valentín, Marco L Luna-Guido, Luc Dendooven

Abstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

8 citing papers in PubMed.

  1. Review
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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.

Laura Delgado-BalbuenaLaboratory of Soil Ecology, ABACUS, Cinvestav, Mexico City, D.F., Mexico.
Juan M Bello-LópezLaboratory of Soil Ecology, ABACUS, Cinvestav, Mexico City, D.F., Mexico.
Yendi E Navarro-NoyaLaboratory of Soil Ecology, ABACUS, Cinvestav, Mexico City, D.F., Mexico.
Analine Rodríguez-ValentínLaboratory of Soil Ecology, ABACUS, Cinvestav, Mexico City, D.F., Mexico.
Marco L Luna-GuidoLaboratory of Soil Ecology, ABACUS, Cinvestav, Mexico City, D.F., Mexico.
Luc DendoovenLaboratory of Soil Ecology, ABACUS, Cinvestav, Mexico City, D.F., Mexico.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mixing soil or adding earthworms (Eisenia fetida (Savigny, 1826)) accelerated the removal of anthracene, a polycyclic aromatic hydrocarbon, from a pasture and an arable soil, while a non-ionic surfactant (Surfynol® 485) inhibited the removal of the contaminant compared to the untreated soil. It was unclear if the treatments affected the soil bacterial community and consequently the removal of anthracene. Therefore, the bacterial community structure was monitored by means of 454 pyrosequencing of the 16S rRNA gene in the pasture and arable soil mixed weekly, amended with Surfynol® 485, E. fetida or organic material that served as food for the earthworms for 56 days. In both soils, the removal of anthracene was in the order: mixing soil weekly (100%) > earthworms applied (92%) > organic material applied (77%) > untreated soil (57%) > surfactant applied (34%) after 56 days. There was no clear link between removal of anthracene from soil and changes in the bacterial community structure. On the one hand, application of earthworms removed most of the contaminant from the arable soil and had a strong effect on the bacterial community structure, i.e. a decrease in the relative abundance of the Acidobacteria, Chloroflexi and Gemmatimonadetes, and an increase in that of the Proteobacteria compared to the unamended soil. Mixing the soil weekly removed all anthracene from the arable soil, but had little or no effect on the bacterial community structure. On the other hand, application of the surfactant inhibited the removal of anthracene from the arable soil compared to the untreated soil, but had a strong effect on the bacterial community structure, i.e. a decrease in the relative abundance of Cytophagia (Bacteroidetes), Chloroflexi, Gemmatimonadetes and Planctomycetes and an increase in that of the Flavobacteria (Bacteroidetes) and Proteobacteria. Additionally, the removal of anthracene was similar in the different treatments of both the arable and pasture soil, but the effect of application of carrot residue, earthworms or the surfactant on the bacterial community structure was more accentuated in the arable soil than in the pasture soil. It was found that removal of anthracene was not linked to changes in the bacterial community structure.

Indexed as

Soil MicrobiologyAcidobacteriaAnimalsAnthracenesBacteriaBacteroidetesChloroflexiDNA, BacterialOligochaetaPrincipal Component AnalysisProteobacteriaRNA, Ribosomal, 16SSequence Analysis, DNASoil PollutantsSurface-Active AgentsAnthracenesDNA, BacterialRNA, Ribosomal, 16SSoil PollutantsSurface-Active Agents

Identifiers

PMID27727277
PMCPMC5058544

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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.