Query: NC_007912:1924392 Saccharophagus degradans 2-40, complete genome Lineage: Saccharophagus degradans; Saccharophagus; Alteromonadaceae; Alteromonadales; Proteobacteria; Bacteria General Information: This strain is a marine gamma-proteobacterium that was isolated from decaying Spartina alterniflora, a salt marsh cord grass, in the Chesapeake Bay, USA. Saccharophagus degradans 2-40 has been used to produce ethanol from plant material and may be useful for the production bioethanol. Bacterium able to degrade complex carbohydrates. Saccharophagus degradans is capable of degrading insoluble complex carbohydrates through the collective action of enzyme complexes found on its cell surfaces, utilizing the degradation products as a carbon source. This organism may be useful in bioremediation. The degradative enzymes this organism produces are typically exoenzymes that are collected and organized into large surface complexes termed cellulosomes.
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General Information: Country: United Kingdom; Isolation: Sick cider; Temp: Mesophile. The natural habitat of this organism includes sugar-rich plant saps where the bacterium ferments sugar to ethanol. The high conversion of sugars to ethanol makes this organism useful in industrial production systems, particularly in production of bioethanol for fuel. A recombinant strain of this bacterium is utilized for the conversion of sugars, particularly xylose, which is not utilized by another common sugar-fermenting organism such as yeast, to ethanol. Since xylose is a common breakdown product of cellulose or a waste component of the agricultural industry, it is an attractive source for ethanol production. Zymomonas mobilis was chosen for this process as it is ethanol-tolerant (up to 120 grams of ethanol per litre) and productive (5-10% more ethanol than Saccharomyces). This bacterium ferments using the Enter-Doudoroff pathway, with the result that less carbon is used in cellular biomass production and more ends up as ethanol, another factor that favors this organism for ethanol production.