Lysogeny in Leuconostoc oenos

Leuconostoc oenos sp.nov.

Nineteen strains of Gram-positive cocci isolated from wine and belonging to the genus Leuconostoc were examined and are considered to form a new species which is named Leuconostoc oenos. These strains differ from other leuconostocs because they grow better in a medium containing tomato juice than in yeast glucose citrate broth normally used in this laboratory for the genus. Furthermore, they gr...

Characterization of Leuconostoc oenos Isolated from Oregon Wines.

This study was designed to characterize isolates of Leuconostoc species from Oregon wines. Gram-positive cocci were isolated, and their biochemical properties and abilities to decompose malic acid were determined. All of the isolates were heterofermentative, catalase negative, and facultatively anaerobic and occurred in pairs and chains. They produced acid from glucose, fructose, mannose, ribos...

Biochemical basis for glucose-induced inhibition of malolactic fermentation in Leuconostoc oenos.

The sugar-induced inhibition of malolactic fermentation in cell suspensions of Leuconostoc oenos, recently reclassified as Oenococcus oeni (L. M. T. Dicks, F. Dellaglio, and M. D. Collins, Int. J. Syst. Bacteriol. 45:395-397, 1995) was investigated by in vivo and in vitro nuclear magnetic resonance (NMR) spectroscopy and manometric techniques. At 2 mM, glucose inhibited malolactic fermentation ...

Citrate and Sugar Cofermentation in Leuconostoc oenos, a C Nuclear Magnetic Resonance Study

Uniport of monoanionic L-malate in membrane vesicles from Leuconostoc oenos.

L-malate transport was studied in membrane vesicles from Leuconostoc oenos MLE(-) (mutant lacking malolactic enzyme) which were fused with liposomes containing beef heart cytochrome c oxidase as a proton-motive-force-generating system. In these hybrid membranes, accumulation of L-malate was observed in response to a pH gradient (delta pH), with the inside alkaline, but was strongly inhibited by...