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Title: Genome and Transcriptome of Clostridium phytofermentans, Catalyst for the Direct Conversion of Plant Feedstocks to Fuels

Journal Article · · PLoS ONE
 [1];  [1];  [2];  [3];  [1];  [4];  [1];  [4];  [4];  [5];  [5];  [6];  [6];  [5];  [7];  [1];  [8];  [9];  [10];  [11]
  1. Univ. of Massachusetts, Amherst, MA (United States). Dept. of Microbiology
  2. Univ. of Massachusetts, Amherst, MA (United States). Graduate Program in Molecular and Cellular Biology; Univ. of Massachusetts, Amherst, MA (United States). Inst. for Cellular Engineering
  3. National Center for Scientific Research (CNRS), Evry (France). Alternative Energies and Atomic Energy Commission (CEA)-Genoscope. Mixed Research Unit (UMR)-8030
  4. Univ. of Massachusetts, Amherst, MA (United States). Dept. of Microbiology; Univ. of Massachusetts, Amherst, MA (United States). Inst. for Cellular Engineering
  5. USDOE Joint Genome Institute (JGI), Walnut Creek, CA (United States). Genome Biology Program. Production Genomics Facility
  6. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Life Sciences Division
  7. Aix-Marseille Univ. I and II, Marseille (France). National Center for Scientific Research (CNRS). Architecture and Function of Biological Macromolecules. Mixed Research Unit (UMR)-6098
  8. Univ. of Massachusetts, Amherst, MA (United States). Dept. of Biochemistry and Molecular Biology
  9. Harvard Medical School, Boston, MA (United States). Dept. of Genetics
  10. Univ. of Massachusetts, Amherst, MA (United States). Dept. of Microbiology; Univ. of Massachusetts, Amherst, MA (United States). Inst. for Cellular Engineering; Univ. of Massachusetts, Amherst, MA (United States). Dept. of Veterinary and Animal Sciences
  11. Univ. of Massachusetts, Amherst, MA (United States). Dept. of Microbiology; Univ. of Massachusetts, Amherst, MA (United States). Graduate Program in Molecular and Cellular Biology; Univ. of Massachusetts, Amherst, MA (United States). Inst. for Cellular Engineering; Univ. of Massachusetts, Amherst, MA (United States). Graduate Program in Organismal and Evolutionary Biology; Univ. of Massachusetts, Amherst, MA (United States). Dept. of Biology

Clostridium phytofermentans was isolated from forest soil and is distinguished by its capacity to directly ferment plant cell wall polysaccharides into ethanol as the primary product, suggesting that it possesses unusual catabolic pathways. In this paper, the objective of the present study was to understand the molecular mechanisms of biomass conversion to ethanol in a single organism, Clostridium phytofermentans, by analyzing its complete genome and transcriptome during growth on plant carbohydrates. The saccharolytic versatility of C. phytofermentans is reflected in a diversity of genes encoding ATP-binding cassette sugar transporters and glycoside hydrolases, many of which may have been acquired through horizontal gene transfer. These genes are frequently organized as operons that may be controlled individually by the many transcriptional regulators identified in the genome. Preferential ethanol production may be due to high levels of expression of multiple ethanol dehydrogenases and additional pathways maximizing ethanol yield. The genome also encodes three different proteinaceous bacterial microcompartments with the capacity to compartmentalize pathways that divert fermentation intermediates to various products. Finally, these characteristics make C. phytofermentans an attractive resource for improving the efficiency and speed of biomass conversion to biofuels.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Oak Ridge Y-12 Plant (Y-12), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Contributing Organization:
Univ. of Massachusetts, Amherst, MA (United States)
Grant/Contract Number:
AC02-05CH11231; FG02-02ER15330; FG02-02ER1533; 0722802
OSTI ID:
1265527
Alternate ID(s):
OSTI ID: 1260614
Journal Information:
PLoS ONE, Vol. 10, Issue 6; ISSN 1932-6203
Publisher:
Public Library of ScienceCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 16 works
Citation information provided by
Web of Science

References (69)

SEAVIEW and PHYLO_WIN: two graphic tools for sequence alignment and molecular phylogeny journal January 1996
GeneMark: web software for gene finding in prokaryotes, eukaryotes and viruses journal July 2005
Biofuels from microbes journal September 2007
Unravelling Carbon Metabolism in Anaerobic Cellulolytic Bacteria journal January 2006
The CLUSTAL_X windows interface: flexible strategies for multiple sequence alignment aided by quality analysis tools journal December 1997
Unravelling Carbon Metabolism in Anaerobic Cellulolytic Bacteria journal January 2006
Biological conversion assay using Clostridium phytofermentans to estimate plant feedstock quality journal January 2012
The Pfam Protein Families Database journal January 2002
Proteome‐wide systems analysis of a cellulosic biofuel‐producing microbe journal January 2011
CRITICA: coding region identification tool invoking comparative analysis journal April 1999
Involvement of a Bacterial Microcompartment in the Metabolism of Fucose and Rhamnose by Clostridium phytofermentans journal January 2013
Consortia-mediated bioprocessing of cellulose to ethanol with a symbiotic Clostridium phytofermentans/yeast co-culture journal January 2013
Arac/XylS family of transcriptional regulators. journal January 1997
KEGG: Kyoto Encyclopedia of Genes and Genomes journal January 2000
Compartmentalization of Gene Expression during Bacillus subtilis Spore Formation journal June 2004
TIGRFAMs: a protein family resource for the functional identification of proteins journal January 2001
Consolidated bioprocessing of cellulosic biomass: an update journal October 2005
The cellulosome and cellulose degradation by anaerobic bacteria journal September 2001
Bacterial Microcompartments journal January 2007
TransportDB: a comprehensive database resource for cytoplasmic membrane transport systems and outer membrane channels journal January 2007
Heterologous Production, Assembly, and Secretion of a Minicellulosome by Clostridium acetobutylicum ATCC 824 journal March 2005
Whole-genome random sequencing and assembly of Haemophilus influenzae Rd journal July 1995
Bacterial Na+-translocating ferredoxin:NAD+ oxidoreductase journal October 2010
Polysaccharide utilization by gut bacteria: potential for new insights from genomic analysis journal February 2008
KEGG for integration and interpretation of large-scale molecular data sets journal November 2011
3-O-α-d-Glucopyranosyl-l-rhamnose phosphorylase from Clostridium phytofermentans journal March 2012
SMART: identification and annotation of domains from signalling and extracellular protein sequences journal January 1999
Glycoside hydrolase family 9 processive endoglucanase from Clostridium phytofermentans: Heterologous expression, characterization, and synergy with family 48 cellobiohydrolase journal July 2010
Fuel Ethanol from Cellulosic Biomass journal March 1991
InterPro in 2011: new developments in the family and domain prediction database journal May 2012
Identifying bacterial genes and endosymbiont DNA with Glimmer journal January 2007
ProDom and ProDom-CG: tools for protein domain analysis and whole genome comparisons journal January 2000
Consolidated bioprocessing (CBP) of AFEX™-pretreated corn stover for ethanol production using Clostridium phytofermentans at a high solids loading journal February 2012
Assembling Genomic DNA Sequences with PHRAP journal March 2007
KEGG for representation and analysis of molecular networks involving diseases and drugs journal October 2009
Targeted gene inactivation in Clostridium phytofermentans shows that cellulose degradation requires the family 9 hydrolase Cphy3367: Clostridium phytofermentans hydrolase genetics journal December 2009
Characterization of the cellulolytic and hydrogen-producing activities of six mesophilic Clostridium species: Clostridial hydrogen from cellulose journal July 2007
Exploration, normalization, and summaries of high density oligonucleotide array probe level data journal April 2003
Consed: A Graphical Tool for Sequence Finishing journal March 1998
Bacterial Microcompartments journal October 2010
Butanol fermentation research: upstream and downstream manipulations journal January 2004
The Phylogeny of the Genus Clostridium: Proposal of Five New Genera and Eleven New Species Combinations journal October 1994
The PRINTS database: a fine-grained protein sequence annotation and analysis resource--its status in 2012 journal January 2012
Engineering of Clostridium phytofermentans Endoglucanase Cel5A for Improved Thermostability journal May 2010
PROSITE, a protein domain database for functional characterization and annotation journal October 2009
The noncellulosomal family 48 cellobiohydrolase from Clostridium phytofermentans ISDg: heterologous expression, characterization, and processivity journal October 2009
Development of a D-xylose fermenting and inhibitor tolerant industrial Saccharomyces cerevisiae strain with high performance in lignocellulose hydrolysates using metabolic and evolutionary engineering journal January 2013
Hydrogenase journal December 1980
Carbohydrate Utilization Patterns for the Extremely Thermophilic Bacterium Caldicellulosiruptor saccharolyticus Reveal Broad Growth Substrate Preferences journal October 2009
Arac/XylS family of transcriptional regulators journal December 1997
Where asymmetry in gene expression originates: Activation of σF during sporulation journal June 2005
Cellulase, Clostridia, and Ethanol journal March 2005
Clostridium phytofermentans sp. nov., a cellulolytic mesophile from forest soil. journal July 2002
Chapter IV: A Roll Tube Method for Cultivation of Strict Anaerobes book January 1969
Clostridium cellulolyticum : model organism of mesophilic cellulolytic clostridia journal September 2005
InterPro in 2011: new developments in the family and domain prediction database journal November 2011
Characterization of Three β-Galactoside Phosphorylases from Clostridium phytofermentans : DISCOVERY OF d-GALACTOSYL-β1→4-l-RHAMNOSE PHOSPHORYLASE journal June 2009
The Pfam protein families database journal January 2004
Base-Calling of Automated Sequencer Traces Using Phred. II. Error Probabilities journal March 1998
The Pfam Protein Families Database journal January 2000
Characterizing a model human gut microbiota composed of members of its two dominant bacterial phyla journal March 2009
Microbial Cellulose Utilization: Fundamentals and Biotechnology journal September 2002
A Multitask ATPase Serving Different ABC-Type Sugar Importers in Bacillus subtilis journal August 2010
Regulation of endospore formation in Bacillus subtilis journal November 2003
Functional Expression of a Bacterial Xylose Isomerase in Saccharomyces cerevisiae journal February 2009
NADP+ Reduction with Reduced Ferredoxin and NADP+ Reduction with NADH Are Coupled via an Electron-Bifurcating Enzyme Complex in Clostridium kluyveri journal July 2010
Energy conservation in chemotrophic anaerobic bacteria. journal January 1977
Energy conservation in chemotrophic anaerobic bacteria. journal January 1977
A family of bacterial regulators homologous to Gal and Lac repressors. journal August 1992

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Cellulosic ethanol production via consolidated bioprocessing by a novel thermophilic anaerobic bacterium isolated from a Himalayan hot spring journal March 2017
The Hybrid Strategy of Thermoactinospora rubra YIM 77501T for Utilizing Cellulose as a Carbon Source at Different Temperatures journal May 2017

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