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Publikováno v:
Journal of bacteriology, Vol. 178, no. 24, p. 7311-5 (1996)
We have examined the metabolic consequences of knocking out the two ldh genes in Lactobacillus plantarum using 13C nuclear magnetic resonance. Unlike its wild-type isogenic progenitor, which produced lactate as the major metabolite under all conditio
Autor:
Timothy C. Flynn, Walter G. Niehaus
Publikováno v:
Journal of Bacteriology. 176:651-655
Cryptococcus neoformans, an encapsulated yeast that is an opportunistic pathogen of AIDS patients, produced and secreted mannitol when incubated with an appropriate carbon source. Glucose, fructose, and mannose were good growth substrates and were co
Publikováno v:
Journal of Bacteriology. 175:2137-2142
Bacillus licheniformis NCIB 6346 showed active accumulation of glucose which was inhibited by agents which affect the transmembrane proton gradient. Phosphotransferase (PTS) activity, identified as phosphoenolpyruvate-dependent phosphorylation of glu
Autor:
V. Jarlier, Hiroshi Nikaido
Publikováno v:
Journal of Bacteriology. 172:1418-1423
In order to define the permeability barrier to hydrophilic molecules in mycobacteria, we used as a model a smooth, beta-lactamase-producing strain of Mycobacterium chelonei. The rates of hydrolysis of eight cephalosporins by intact and sonicated cell
Autor:
J S Hong, Michael A. Lieberman
Publikováno v:
Journal of Bacteriology. 125:1024-1031
The temperature-sensitive Escherichia coli mutant ecfts metC (Lieberman and Hong, 1974), previously shown to be defective in the coupling of metabolic energy to active transport, is also altered in a wide variety of cellular activities at the nonperm
Autor:
Julie Chao, Carolyn J. Weathersbee
Publikováno v:
Journal of Bacteriology. 117:181-188
Cyclic adenosine 3′, 5′-monophosphate (AMP) stimulates maltodextrin phosphorylase synthesis in Escherichia coli cells induced with maltose. A maximal effect occurs at 2 to 3 mM cyclic AMP. The action of cyclic AMP is specific, inasmuch as adenosi
Autor:
Susan J. Curtis
Publikováno v:
Journal of Bacteriology. 120:295-303
In Escherichia coli ML 308-225, d -ribose is transported into the cell by a constitutive active transport system of high activity. The activity of this transport system is severely reduced in cells subjected to osmotic shock, and the system is not pr
Autor:
Michael Artman, Seymour Werthamer
Publikováno v:
Journal of Bacteriology. 120:980-983
Cyclic guanosine 3′,5′-monophosphate inhibits the synthesis of β-galactosidase and tryptophanase in cultures of Escherichia coli growing in minimal media with glucose or glycerol as the carbon source. Cyclic guanosine 3′,5′-monophosphate act
Autor:
R J Kadner, H H Winkler
Publikováno v:
Journal of Bacteriology. 123:985-991
The source of metabolic energy for the accumulation of methionine in cells of Escherichia coli was shown to differ from that for proline uptake. In contrast to proline uptake, methionine accumulation was sensitive to arsenate, and relatively resistan
Autor:
G. W. Claus, S. A. White
Publikováno v:
Journal of Bacteriology. 150:934-943
By using membrane-bound dehydrogenases, Gluconobacter oxydans characteristically accomplishes single-step oxidation of many polyols and quantitative release of the oxidation product into the medium. These cells typically differentiate by forming intr