The relevance of carbon dioxide metabolism in Streptococcus thermophilus
نویسندگان
چکیده
منابع مشابه
Carbon Dioxide Fixation by Extracts of Streptococcus
sence of exogenously added glutamate and pyridoxal-5'-phosphate and produced radioactive aspartate in the presence of these components. Reduced nicotinamide adenine dinucleotide or reduced nicotinamide adenine dinucleotide phosphate could not be substituted for adenosine triphosphate (ATP); phosphoenolpyruvate even in the presence of nucleoside diphosphates could not replace pyruvate plus ATP; ...
متن کاملStreptococcus thermophilus.
Streptocus tmophilus, as a species designation (Orla-Jensen, 1919), has included those members of the nonhemolytic streptococci that possess the unusual combination of characteristics of extreme salt sensitivity, nonobligate thermophily, a rigorous fermentative pattern with respect to certain sugars (Sherman, 1937), and, based upon attempts to culture on synthetic media, a notoriety for nutriti...
متن کاملEffects of carbon dioxide on the growth and amino acid metabolism of Streptococcus bovis.
The position of Streptococcus bovis among the Lacobactriacae is of interest because of the extremely simple nitrogen requirements of this organism in contrast with the other streptococci which have been investigated. Niven, Washburn, and White (1948) studied the nutritive requirements of fifteen strains of S. bovis and found that all but two grew in a medium containing arginine as the sole sour...
متن کاملGalactokinase activity in Streptococcus thermophilus.
ATP-dependent phosphorylation of [14C]galactose by 11 strains of Streptococcus thermophilus indicated that these organisms possessed the Leloir enzyme, galactokinase (galK). Activities were 10 times higher in fully induced, galactose-fermenting (Gal+) strains than in galactose-nonfermenting (Gal-) strains. Lactose-grown, Gal- cells released free galactose into the medium and were unable to util...
متن کاملGalactose transport in Streptococcus thermophilus.
Although Streptococcus thermophilus accumulated [14C]lactose in the absence of an endogenous energy source, galactose-fermenting (Gal+) cells were unable to accumulate [14C]galactose unless an additional energy source was added to the test system. Both Gal+ and galactose-nonfermenting (Gal-) strains transported galactose when preincubated with sucrose. Accumulation was inhibited 50 or 95% when ...
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ژورنال
عنوان ژورنال: Microbiology
سال: 2009
ISSN: 1350-0872,1465-2080
DOI: 10.1099/mic.0.024737-0