Clostridium autoethanogenum | |
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Scientific classification ![]() | |
Domain: | Bacteria |
Kingdom: | Bacillati |
Phylum: | Bacillota |
Class: | Clostridia |
Order: | Eubacteriales |
Family: | Clostridiaceae |
Genus: | Clostridium |
Species: | C. autoethanogenum |
Binomial name | |
Clostridium autoethanogenum Abrini et al. 1994 |
Clostridium autoethanogenum is an anaerobic bacterium that produces ethanol from carbon monoxide, in so-called syngas fermentation, being one of the few known microorganisms to do so. It is gram-positive, spore-forming, rod-like, motile, and was first isolated from rabbit feces. Its type strain is strain JA1-1. [1] Its genome has been sequenced, [2] and the genes required for utilizing carbon monoxide as a sole carbon and energy source have been determined. [3]
As a chemoautotrophic gas-fermenting organism, it possesses the Wood-Ljungdahl carbon fixation pathway, which allows the conversion of C1-gases into the biomass precursor acetyl-CoA and other specific products, while generating ATP for growth. [4]
This species is the key to the technology developed by Lanzatech to produce ethanol on a commercial scale from waste carbon monoxide gas of factory emissions. [5] On a laboratory scale, reports include production of butanol, 3-hydroxybutyrate, ethylene glycol and other compounds. [4]