skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Metagenomic and Metatranscriptomic Analyses Reveal the Structure and Dynamics of a Dechlorinating Community Containing Dehalococcoides mccartyi and Corrinoid-Providing Microorganisms under Cobalamin-Limited Conditions

Journal Article · · Applied and Environmental Microbiology
DOI:https://doi.org/10.1128/AEM.03508-16· OSTI ID:1372982

ABSTRACT The aim of this study is to obtain a systems-level understanding of the interactions betweenDehalococcoidesand corrinoid-supplying microorganisms by analyzing community structures and functional compositions, activities, and dynamics in trichloroethene (TCE)-dechlorinating enrichments. Metagenomes and metatranscriptomes of the dechlorinating enrichments with and without exogenous cobalamin were compared. Seven putative draft genomes were binned from the metagenomes. At an early stage (2 days), more transcripts of genes in theVeillonellaceaebin-genome were detected in the metatranscriptome of the enrichment without exogenous cobalamin than in the one with the addition of cobalamin. Among these genes, sporulation-related genes exhibited the highest differential expression when cobalamin was not added, suggesting a possible release route of corrinoids from corrinoid producers. Other differentially expressed genes include those involved in energy conservation and nutrient transport (including cobalt transport). The most highly expressed corrinoidde novobiosynthesis pathway was also assigned to theVeillonellaceaebin-genome. Targeted quantitative PCR (qPCR) analyses confirmed higher transcript abundances of those corrinoid biosynthesis genes in the enrichment without exogenous cobalamin than in the enrichment with cobalamin. Furthermore, the corrinoid salvaging and modification pathway ofDehalococcoideswas upregulated in response to the cobalamin stress. This study provides important insights into the microbial interactions and roles played by members of dechlorinating communities under cobalamin-limited conditions. IMPORTANCEThe key chloroethene-dechlorinating bacteriumDehalococcoides mccartyiis a cobalamin auxotroph, thus acquiring corrinoids from other community members. Therefore, it is important to investigate the microbe-microbe interactions betweenDehalococcoidesand the corrinoid-providing microorganisms in a community. This study provides systems-level information, i.e., taxonomic and functional compositions and dynamics of the supportive microorganisms in dechlorinating communities under different cobalamin conditions. The findings shed light on the important roles ofVeillonellaceaespecies in the communities compared to other coexisting community members in producing and providing corrinoids forDehalococcoidesspecies under cobalamin-limited conditions.

Research Organization:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
OSTI ID:
1372982
Report Number(s):
PNNL-SA-126554
Journal Information:
Applied and Environmental Microbiology, Vol. 83, Issue 8; ISSN 0099-2240
Publisher:
American Society for Microbiology
Country of Publication:
United States
Language:
English

References (53)

A History of the Production and Use of Carbon Tetrachloride, Tetrachloroethylene, Trichloroethylene and 1,1,1-Trichloroethane in the United States: Part 1--Historical Background; Carbon Tetrachloride and Tetrachloroethylene journal January 2000
Chlorinated Solvents in Groundwater of the United States journal January 2007
Chlorinated Ethene Source Remediation: Lessons Learned journal May 2012
Cleaning up with genomics: applying molecular biology to bioremediation journal October 2003
Isolation of a Bacterium That Reductively Dechlorinates Tetrachloroethene to Ethene journal June 1997
Dehalococcoides mccartyi gen. nov., sp. nov., obligately organohalide-respiring anaerobic bacteria relevant to halogen cycling and bioremediation, belong to a novel bacterial class, Dehalococcoidia classis nov., order Dehalococcoidales ord. nov. and family Dehalococcoidaceae fam. nov., within the phylum Chloroflexi journal April 2012
Complete Detoxification of Vinyl Chloride by an Anaerobic Enrichment Culture and Identification of the Reductively Dechlorinating Population as a Dehalococcoides Species journal February 2003
Stable Carbon Isotope Fractionation of Chloroethenes by Dehalorespiring Isolates journal June 2007
Versatility in Corrinoid Salvaging and Remodeling Pathways Supports Corrinoid-Dependent Metabolism in Dehalococcoides mccartyi journal August 2012
Growth of a Dehalococcoides-Like Microorganism on Vinyl Chloride and cis-Dichloroethene as Electron Acceptors as Determined by Competitive PCR journal February 2003
Genome Sequence of the PCE-Dechlorinating Bacterium Dehalococcoides ethenogenes journal January 2005
Design and Verification of a Pangenome Microarray Oligonucleotide Probe Set for Dehalococcoides spp. journal June 2011
Comparative genomics of two newly isolated Dehalococcoides strains and an enrichment using a genus microarray journal January 2011
Identification of a Chlorobenzene Reductive Dehalogenase in Dehalococcoides sp. Strain CBDB1 journal October 2007
Transcriptomic microarray analysis of corrinoid responsive genes in Dehalococcoides ethenogenes strain 195 journal May 2009
Transcription and mass-spectroscopic proteomic studies of electron transport oxidoreductases in Dehalococcoides ethenogenes journal September 2006
Selective Utilization of Exogenous Amino Acids by Dehalococcoides ethenogenes Strain 195 and Its Effects on Growth and Dechlorination Activity journal September 2011
Investigation of Carbon Metabolism in "Dehalococcoides ethenogenes" Strain 195 by Use of Isotopomer and Transcriptomic Analyses journal June 2009
Incomplete Wood-Ljungdahl pathway facilitates one-carbon metabolism in organohalide-respiring Dehalococcoides mccartyi journal April 2014
Organic cofactors in the metabolism of Dehalococcoides mccartyi strains journal April 2013
Phylogenetic Analysis of TCE-Dechlorinating Consortia Enriched on a Variety of Electron Donors journal November 2005
Microbial composition of chlorinated ethene-degrading cultures dominated by Dehalococcoides: Quantitative PCR of dechlorinating cultures journal December 2006
Molecular Characterization of a Dechlorinating Community Resulting from In Situ Biostimulation in a Trichloroethene-Contaminated Deep, Fractured Basalt Aquifer and Comparison to a Derivative Laboratory Culture journal December 2004
Microbial production of vitamin B 12 journal March 2002
Unexpected Specificity of Interspecies Cobamide Transfer from Geobacter spp. to Organohalide-Respiring Dehalococcoides mccartyi Strains journal July 2012
The corrinoid cofactor of reductive dehalogenases affects dechlorination rates and extents in organohalide-respiring Dehalococcoides mccartyi journal November 2015
Influence of Vitamin B12 and Cocultures on the Growth of Dehalococcoides Isolates in Defined Medium journal March 2007
Temporal Expression of Respiratory Genes in an Enrichment Culture Containing Dehalococcoides ethenogenes journal August 2006
Transcriptional Analysis of a Dehalococcoides-Containing Microbial Consortium Reveals Prophage Activation journal December 2011
Comparative Genomics of "Dehalococcoides ethenogenes" 195 and an Enrichment Culture Containing Unsequenced "Dehalococcoides" Strains journal March 2008
Global gene expression of Dehalococcoides within a robust dynamic TCE-dechlorinating community under conditions of periodic substrate supply journal February 2013
Multi-omics of permafrost, active layer and thermokarst bog soil microbiomes journal March 2015
Metagenome, metatranscriptome and single-cell sequencing reveal microbial response to Deepwater Horizon oil spill journal June 2012
Microbial community gene expression in ocean surface waters journal March 2008
Comparative metagenomic and metatranscriptomic analyses of microbial communities in acid mine drainage journal December 2014
A novel metatranscriptomic approach to identify gene expression dynamics during extracellular electron transfer journal March 2013
Metagenomic analysis of a stable trichloroethene-degrading microbial community journal March 2012
Microbial ecology of chlorinated solvent biodegradation: Microbial ecology of PCE degradation journal March 2014
Genome sequences of rare, uncultured bacteria obtained by differential coverage binning of multiple metagenomes journal May 2013
Characterization of four TCE-dechlorinating microbial enrichments grown with different cobalamin stress and methanogenic conditions journal May 2013
Identification of specific corrinoids reveals corrinoid modification in dechlorinating microbial communities: Corrinoids in dechlorinating communities journal June 2014
The Many Faces of Vitamin B12: Catalysis by Cobalamin-Dependent Enzymes journal June 2003
Identification of phenolyl cobamide from the homoacetogenic bacterium Sporomusa ovata journal December 1989
Sustainable Growth of Dehalococcoides mccartyi 195 by Corrinoid Salvaging and Remodeling in Defined Lactate-Fermenting Consortia journal January 2014
Tetrachloromethane-Degrading Bacterial Enrichment Cultures and Isolates from a Contaminated Aquifer journal July 2015
Identification of microorganisms involved in reductive dehalogenation of chlorinated ethenes in an anaerobic microbial community journal October 2005
Nutrient cross-feeding in the microbial world journal July 2014
Nocturnal Production of Endospores in Natural Populations of Epulopiscium-Like Surgeonfish Symbionts journal October 2005
Updates on the sporulation process in Clostridium species journal May 2015
Recent progress in Bacillus subtilis sporulation journal January 2012
Anaerobic biosynthesis of the lower ligand of vitamin B 12 journal August 2015
Linear amplification for deep sequencing journal June 2011
CheckM: assessing the quality of microbial genomes recovered from isolates, single cells, and metagenomes journal May 2015

Cited By (5)

Synthetic microbial consortia for biosynthesis and biodegradation: promises and challenges journal July 2019
Growth of Dehalococcoides mccartyi species in an autotrophic consortium producing limited acetate journal August 2018
Sustained Dechlorination of Vinyl Chloride to Ethene in Dehalococcoides -Enriched Cultures Grown without Addition of Exogenous Vitamins and at Low pH journal August 2019
An integrative overview of genomic, transcriptomic and proteomic analyses in organohalide respiration research journal January 2018
An integrated meta-omics approach reveals substrates involved in synergistic interactions in a bisphenol A (BPA)-degrading microbial community journal February 2019