Citrate Fermentation by Lactococcus and Leuconostoc spp
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چکیده
منابع مشابه
Citrate Fermentation by Lactococcus and Leuconostoc spp.
Citrate and lactose fermentation are subject to the same metabolic regulation. In both processes, pyruvate is the key intermediate. Lactococcus lactis subsp. lactis biovar diacetylactis homofermentatively converted pyruvate to lactate at high dilution (growth) rates, low pH, and high lactose concentrations. Mixed-acid fermentation with formate, ethanol, and acetate as products was observed unde...
متن کاملMechanism of the citrate transporters in carbohydrate and citrate cometabolism in Lactococcus and Leuconostoc species.
Citrate metabolism in the lactic acid bacterium Leuconostoc mesenteroides generates an electrochemical proton gradient across the membrane by a secondary mechanism (C. Marty-Teysset, C. Posthuma, J. S. Lolkema, P. Schmitt, C. Divies, and W. N. Konings, J. Bacteriol. 178:2178-2185, 1996). Reports on the energetics of citrate metabolism in the related organism Lactococcus lactis are contradictory...
متن کاملUniversity of Groningen Mechanism of the Citrate Transporters in Carbohydrate and Citrate Cometabolism in Lactococcus and Leuconostoc Species
متن کامل
The fermentation of sucrose by Leuconostoc mesenteroides.
The slime forming Leuconostoc mesnreroides is distributed widely in nature and is apparently ubiquitous in sugar factories. Neill, Hehre, Sugg, and Jaffe (1939) found dextran, a fermentation product of L. meenteroides, in all samples of cp sucrose examined. This organism, long a nuisance in the factory, has in recent years attracted wide interest because of the commercial possibilities of the d...
متن کاملTranscriptional control of the citrate-inducible citMCDEFGRP operon, encoding genes involved in citrate fermentation in Leuconostoc paramesenteroides.
In this study we describe the expression pattern of the Leuconostoc paramesenteroides citMCDEFGRP operon in response to the addition of citrate to the growth medium. An 8.8-kb polycistronic transcript, which includes the citMCDEFGRP genes, was identified; its synthesis was dramatically induced upon addition of citrate to the growth medium. We also found that expression of the cit operon is subj...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 1991
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.57.12.3535-3540.1991