نتایج جستجو برای: chemostats
تعداد نتایج: 252 فیلتر نتایج به سال:
To follow and model evolution of a microbial population in the chemostat, parameters are needed that give an indication of the absolute extent of evolution at a high resolution of time. In this study the evolution of the maximum specific growth rate ( micro (max)) and the residual glucose concentration was followed for populations of Escherichia coli K-12 under glucose-limited conditions at dil...
Previous analysis of aerobic, glucose-limited continuous cultures of Escherichia coli revealed that G:C-to-T:A (G:C-->T:A) transversions were the most commonly occurring type of spontaneous mutation. One possible explanation for the preponderance of these mutations was that nutrient limitation repressed MutY-dependent DNA repair, resulting in increased proportions of G:C-->T:A transversions. Th...
Cell growth rate is regulated in response to the abundance and molecular form of essential nutrients. InSaccharomyces cerevisiae(budding yeast), the molecular form of environmental nitrogen is a major determinant of cell growth rate, supporting growth rates that vary at least threefold. Transcriptional control of nitrogen use is mediated in large part by nitrogen catabolite repression (NCR), wh...
Abstract Biological reactors are employed in industrial applications to break down organic waste. We view the cascade of two open loop continuously stirred tank with Haldane growth function as chemostats bacterial inputs. A some reactor parameters is derived, sign which determines maximum number critical points a can have. This allows us determine parameter combinations ensure has only single p...
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