Evidence map›Paper›PMID 19633106›Full record

ArticleApplied and environmental microbiology2009

Isolation and characterization of "Dehalococcoides" sp. strain MB, which dechlorinates tetrachloroethene to trans-1,2-dichloroethene.

Dan Cheng, Jianzhong He

Abstract read
In one paragraph

Article in Applied and environmental microbiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing 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

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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

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

  1. Pooled it
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  7. Differentiating Closely AffiliatedApplied and environmental microbiology · 2022
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  14. Microbial degradation of chloroethenes: a review.Environmental science and pollution research international · 2017
    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

2 authors.

Dan ChengDivision of Environmental Science and Engineering, National University of Singapore, Block E2-02-13, 1 Engineering Drive 3, Singapore 117576, Republic of Singapore.
Jianzhong He

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In an attempt to understand the microorganisms involved in the generation of trans-1,2-dichloroethene (trans-DCE), pure-culture "Dehalococcoides" sp. strain MB was isolated from environmental sediments. In contrast to currently known tetrachloroethene (PCE)- or trichloroethene (TCE)-dechlorinating pure cultures, which generate cis-DCE as the predominant product, Dehalococcoides sp. strain MB reductively dechlorinates PCE to trans-DCE and cis-DCE at a ratio of 7.3 (+/-0.4):1. It utilizes H2 as the sole electron donor and PCE or TCE as the electron acceptor during anaerobic respiration. Strain MB is a disc-shaped, nonmotile bacterium. Under an atomic force microscope, the cells appear singly or in pairs and are 1.0 microm in diameter and approximately 150 nm in depth. The purity was confirmed by culture-based approaches and 16S rRNA gene-based analysis and was corroborated further by putative reductive dehalogenase (RDase) gene-based, quantitative real-time PCR. Although strain MB shares 100% 16S rRNA gene sequence identity with Dehalococcoides ethenogenes strain 195, these two strains possess different dechlorinating pathways. Microarray analysis revealed that 10 putative RDase genes present in strain 195 were also detected in strain MB. Successful cultivation of strain MB indicates that the biotic process could contribute significantly to the generation of trans-DCE in chloroethene-contaminated sites. It also enhances our understanding of the evolution of this unusual microbial group, Dehalococcoides species.

Indexed as

Environmental MicrobiologyAnaerobiosisBiotransformationChloroflexiDichloroethylenesDNA, BacterialDNA, RibosomalHydrogenMicroarray AnalysisMicroscopy, Atomic ForceMolecular Sequence DataOxidation-ReductionRNA, Ribosomal, 16SSequence Analysis, DNASequence Homology, Nucleic AcidTetrachloroethylene1,2-dichloroethyleneDichloroethylenesDNA, BacterialDNA, RibosomalHydrogenRNA, Ribosomal, 16STetrachloroethylene

Identifiers

PMID19633106
PMCPMC2747852

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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.