Pre_GI: SWBIT SVG BLASTP

Query: NC_017262:623351 Zymomonas mobilis subsp. mobilis ATCC 10988 chromosome, complete

Lineage: Zymomonas mobilis; Zymomonas; Sphingomonadaceae; Sphingomonadales; Proteobacteria; Bacteria

General Information: Country: Mexico; Environment: Food; Isolation: Fermenting Agave juice; Isolation: originally isolated as Pseudomonas lindneri; Temp: Mesophile; Temp: 30C. 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.

Subject: NC_008528:1265542 Oenococcus oeni PSU-1, complete genome

Lineage: Oenococcus oeni; Oenococcus; Leuconostocaceae; Lactobacillales; Firmicutes; Bacteria

General Information: This strain was isolated at Penn State University, USA and is used commercially for malolactic fermentation in wines. Lactic acid bacterium used in wine production. Oenococcus oeni is another member of the lactic acid bacteria and it occurs naturally in marshes and similar environments. It carries out malolactic conversion during secondary fermentation in wine production which is the conversion of malic acid to lactic acid with a concomitant rise in pH, making the wine microbiologically stable and enhancing the sensory properties of the wine (aroma, flavor, and texture). The organism's high tolerance to sulfite and ethanol mean that it will be the predominant organism in the wine at the end of fermentation where it cleans up the remaining sugars and converts the bitter-tasting malic acid.