ArticleApplied and environmental microbiology2007
Microbial reductive dechlorination of aroclor 1260 in Baltimore harbor sediment microcosms is catalyzed by three phylotypes within the phylum Chloroflexi.
Article in Applied and environmental microbiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.
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Who cites it
29 citing papers in PubMed, 131 citations in OpenAlex.
- Effects of humic electron mediators on reductive dechlorination of polychlorinated biphenyl by consortia enriched from terrestrial and marine environments.Frontiers in microbiology · 2024Article
- Polychlorinated Biphenyl Transformation, Peroxidase and Oxidase Activities of Fungi and Bacteria Isolated from a Historically Contaminated Site.Microorganisms · 2023Article
- Resuscitation-Promoting Factor Accelerates Enrichment of Highly Active Tetrachloroethene/Polychlorinated Biphenyl-Dechlorinating Cultures.Applied and environmental microbiology · 2023Article
- Potential Environmental Risk Characteristics of PCB Transformation Products in the Environmental Medium.Toxics · 2021Article
- A comparative evaluation of anaerobic dechlorination of PCB-118 and Aroclor 1254 in sediment microcosms from three PCB-impacted environments.Journal of hazardous materials · 2018Article
- Effects of Ferric Oxyhydroxide on Anaerobic Microbial Dechlorination of Polychlorinated Biphenyls in Hudson and Grasse River Sediment Microcosms: Dechlorination Extent, Preferences,Frontiers in microbiology · 2018Article
- Reductive Debromination of Polybrominated Diphenyl Ethers - Microbes, Processes and Dehalogenases.Frontiers in microbiology · 2018Review
- Identification of two organohalide-respiring Dehalococcoidia associated to different dechlorination activities in PCB-impacted marine sediments.Microbial cell factories · 2017Article
- Polychlorinated biphenyl (PCB) anaerobic degradation in marine sediments: microcosm study and role of autochthonous microbial communities.Environmental science and pollution research international · 2016Article
- Indirect Evidence Link PCB Dehalogenation with Geobacteraceae in Anaerobic Sediment-Free Microcosms.Frontiers in microbiology · 2016Article
- Microbial community analysis of switchgrass planted and unplanted soil microcosms displaying PCB dechlorination.Applied microbiology and biotechnology · 2015Article
- Patterns of benthic bacterial diversity in coastal areas contaminated by heavy metals, polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs).Frontiers in microbiology · 2015Article
- Enhanced Polychlorinated Biphenyl Removal in a Switchgrass Rhizosphere by Bioaugmentation withEcological engineering · 2014Article
- PCB dechlorinases revealed at last.Proceedings of the National Academy of Sciences of the United States of America · 2014Article
- Kinetics and threshold level of 2,3,4,5-tetrachlorobiphenyl dechlorination by an organohalide respiring bacterium.Environmental science & technology · 2014Article
- Potential for Polychlorinated Biphenyl Biodegradation in Sediments from Indiana Harbor and Ship Canal.International biodeterioration & biodegradation · 2014Article
- Bioremediation trial on aged PCB-polluted soils--a bench study in Iceland.Environmental science and pollution research international · 2014Article
- Genome sequencing of a single cell of the widely distributed marine subsurface Dehalococcoidia, phylum Chloroflexi.The ISME journal · 2014Article
- Dechlorination of PCBs in the rhizosphere of switchgrass and poplar.Environmental pollution (Barking, Essex : 1987) · 2013Article
- In situ treatment of PCBs by anaerobic microbial dechlorination in aquatic sediment: are we there yet?Current opinion in biotechnology · 2013Review
Corrections and comments
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Authors and funding
3 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The specific dechlorination pathways for Aroclor 1260 were determined in Baltimore Harbor sediment microcosms developed with the 11 most predominant congeners from this commercial mixture and their resulting dechlorination intermediates. Most of the polychlorinated biphenyl (PCB) congeners were dechlorinated in the meta position, and the major products were tetrachlorobiphenyls with unflanked chlorines. Using PCR primers specific for the 16S rRNA genes of known PCB-dehalogenating bacteria, we detected three phylotypes within the microbial community that had the capability to dechlorinate PCB congeners present in Aroclor 1260 and identified their selective activities. Phylotype DEH10, which has a high level of sequence identity to Dehalococcoides spp., removed the double-flanked chlorine in 234-substituted congeners and exhibited a preference for para-flanked meta-chlorines when no double-flanked chlorines were available. Phylotype SF1 had similarity to the o-17/DF-1 group of PCB-dechlorinating bacteria. Phylotype SF1 dechlorinated all of the 2345-substituted congeners, mostly in the double-flanked meta position and 2356-, 236-, and 235-substituted congeners in the ortho-flanked meta position, with a few exceptions. A phylotype with 100% sequence identity to PCB-dechlorinating bacterium o-17 was responsible for an ortho and a double-flanked meta dechlorination reaction. Most of the dechlorination pathways supported the growth of all three phylotypes based on competitive PCR enumeration assays, which indicates that PCB-impacted environments have the potential to sustain populations of these PCB-dechlorinating microorganisms. The results demonstrate that the variation in dechlorination patterns of congener mixtures typically observed at different PCB impacted sites can potentially be mediated by the synergistic activities of relatively few dechlorinating species.
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