Results 161 to 170 of about 14,145 (207)

The impact of carbon and nitrogen catabolite repression in microorganisms

Microbiological Research, 2021
Organisms have cellular machinery that is focused on optimum utilization of resources to maximize growth and survival depending on various environmental and developmental factors. Catabolite repression is a strategy utilized by various species of bacteria and fungi to accommodate changes in the environment such as the depletion of resources, or an ...
Saurabh Jyoti Sarma
exaly   +3 more sources

Experimental evolution reveals an effective avenue to release catabolite repression via mutations in XylR

Proceedings of the National Academy of Sciences of the United States of America, 2017
Significance Lignocellulosic biomass is a promising renewable feedstock for microbial production of fuels and chemicals. D-glucose and D-xylose are the most abundant sugars in lignocellulosic materials.
Christian Sievert, Reed A Cartwright, Xuan Wang   +2 more
exaly   +2 more sources

Catabolite Repression in Enterococcus faecalis

Systematic and Applied Microbiology, 2003
Metabolism of citrate, pyruvate and sugars by Enterococcus faecalis E-239 and JH2-2 and an isogenic, catabolite derepressed mutant of JH2-2, strain CL4, was investigated. The growth rates of E. faecalis E-239 on citrate and pyruvate were 0.58 and 0.63 h(-1), respectively, indicating that both acids were used as energy sources.
Mary C, Rea, Timothy M, Cogan
openaire   +2 more sources

Biochemical modeling of microbial memory effects and catabolite repression on soil organic carbon compounds

Soil Biology and Biochemistry, 2019
Microbial decomposition of Soil Organic Matter (SOM) is largely controlled by environmental and edaphic factors such as temperature, pH, and moisture. However, microbial metabolism is controlled by catabolite repression, which leads microbes to grow on ...
Daniele La Cécilia, William J Riley, Federico Maggi   +2 more
exaly   +2 more sources

Catabolite repression 1985

Biochimie, 1985
The present status of catabolite repression is summarized with respect to the involvement of cyclic AMP and other mediators. A model is presented which may account for the relationship between positive control of gene expression exerted by cAMP and its receptor, CAP, and negative control of catabolite repression mediated by specific metabolites.
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Hypothesis for catabolite repression

Journal of Theoretical Biology, 1971
Abstract Attention is drawn to the abundance of proteins in Escherichia coli , whose N-terminal amino acid is alanine or serine. In the chain as synthesized, the first amino acid is formylmethionine and these serine and alanine residues must be in the second position. The role of formylmethione as initiator is well established.
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The kinetics of catabolite repression inEscherichia coli

Folia Microbiologica, 1969
Glucose and its close metabolic derivatives were compared for their effectiveness in bringing about catabolite repression inEscherichia coli. The findings indicate that catabolite repression is established most rapidly when glucose-6-phosphate serves as source of carbon; they also demonstrate that regulation by catabolite repression is exerted at the ...
J Janecek, H V Rickenberg, Janecek J
exaly   +3 more sources

Catabolite repression of amylase synthesis in yeast

Biotechnology and Bioengineering, 1987
AbstractAmylase synthesis by the yeasts Saccharomycopsis fibuligera and Schwanniomyces castellii and alluvius is repressed by glucose. Steady state continuous culture data for amylase activity, E, biomass concentration, X, and reducing sugar concentration, S, were fitted to the three‐parameter catabolite repression model and biomass productivity, DX,
A B, Pasari, R A, Korus, R A, Williams, R C, Heimsch   +3 more
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Hexokinases and catabolite repression inCandida utilis

Folia Microbiologica, 1994
Like Saccharomyces cerevisiae, Candida utilis IGC 3092 has two hexokinases. Their kinetic behavior suggests that they are slightly different from those of S. cerevisiae, and although they are insensitive to xylose, they are affected by trehalose 6-P and ADP. Unlike some other yeast species, C.
A E, Espinel, J M, Peinado
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Carbon catabolite repression: not only for glucose

Current Genetics, 2019
Most organisms prefer to utilize glucose as a carbon source. Accordingly, the expression of genes involved in the catabolism of other carbon sources is repressed by the presence of glucose in a process known as (carbon) catabolite repression. However, much less is known about the relationships between "poor" carbon sources.
Kobi Simpson-Lavy, Martin Kupiec
openaire   +2 more sources