Cited by 660Microbial Metabolic Engineering and BioproductionAnaerobic Digestion and Biogas ProductionBiofuel production and bioconversion

Clostridium ljungdahlii represents a microbial production platform based on syngas

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Köpke, Michael, Held, Claudia, Hujer, Sandra, Liesegang, Heiko, Wiezer, Arnim, Wollherr, Antje, Ehrenreich, Armin, Liebl, Wolfgang +2 more·2010·Proceedings of the National Academy of Sciences

Abstract

Clostridium ljungdahlii is an anaerobic homoacetogen, able to ferment sugars, other organic compounds, or CO(2)/H(2) and synthesis gas (CO/H(2)). The latter feature makes it an interesting microbe for the biotech industry, as important bulk chemicals and proteins can be produced at the expense of CO(2), thus combining industrial needs with sustained reduction of CO and CO(2) in the atmosphere. Sequencing the complete genome of C. ljungdahlii revealed that it comprises 4,630,065 bp and is one of the largest clostridial genomes known to date. Experimental data and in silico comparisons revealed a third mode of anaerobic homoacetogenic metabolism. Unlike other organisms such as Moorella thermoacetica or Acetobacterium woodii, neither cytochromes nor sodium ions are involved in energy generation. Instead, an Rnf system is present, by which proton translocation can be performed. An electroporation procedure has been developed to transform the organism with plasmids bearing heterologous genes for butanol production. Successful expression of these genes could be demonstrated, leading to formation of the biofuel. Thus, C. ljungdahlii can be used as a unique microbial production platform based on synthesis gas and carbon dioxide/hydrogen mixtures.

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Authors
Köpke, M., Held, C., Hujer, S., Liesegang, H., Wiezer, A., Wollherr, A., Ehrenreich, A., Liebl, W., Gottschalk, G., & Dürre, P.
Affiliations
  • Universität Ulm (DE)
  • University of Göttingen (DE)
  • Technical University of Munich (DE)
Corresponding author
Dürre, Peter
Venue
Proceedings of the National Academy of Sciences
Published
2010-07-02
Volume
107
Issue
29
Pages
13087-13092
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1992994412
Cited by
660
References
38
Citations by year
2026: 29 · 2025: 26 · 2024: 34 · 2023: 37 · 2022: 39 · 2021: 45 · 2020: 49 · 2019: 55 · 2018: 39 · 2017: 50 · 2016: 58 · 2015: 49 · 2014: 46 · 2013: 43 · 2012: 31
FWCI
13.54
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • GRO (submittedVersion)
Funders
Bundesministerium für Bildung und Forschung
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial Metabolic Engineering and Bioproduction
  • Physical Sciences › Engineering › Building and Construction › Anaerobic Digestion and Biogas Production
  • Physical Sciences › Engineering › Biomedical Engineering › Biofuel production and bioconversion
Keywords
Clostridium ljungdahlii, homoacetogenesis, syngas fermentation, anaerobic metabolism, proton translocation, genome sequencing, heterologous expression, butanol production, electroporation, CO2 reduction, biofuels
MeSH terms
Ethanol, Bacterial Proteins, Clostridium, DNA, Bacterial, Energy Metabolism, Molecular Sequence Data, Recombination, Genetic, Substrate Specificity, Blotting, Northern, Gene Expression Regulation, Bacterial, Genome, Bacterial, Metabolic Networks and Pathways, Biofuels

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