rRNA and Poly-β-Hydroxybutyrate Dynamics in Bioreactors Subjected to Feast and Famine Cycles
نویسندگان
چکیده
منابع مشابه
rRNA and poly-beta-hydroxybutyrate dynamics in bioreactors subjected to feast and famine cycles.
Feast and famine cycles are common in activated sludge wastewater treatment systems, and they select for bacteria that accumulate storage compounds, such as poly-beta-hydroxybutyrate (PHB). Previous studies have shown that variations in influent substrate concentrations force bacteria to accumulate high levels of rRNA compared to the levels in bacteria grown in chemostats. Therefore, it can be ...
متن کاملrRNA and Poly- -Hydroxybutyrate Dynamics in Bioreactors Subjected to Feast and Famine Cycles
rRNA and Poly-Hydroxybutyrate Dynamics in Bioreactors Subjected to Feast and Famine Cycles Dominic Frigon,† Gerard Muyzer, Mark van Loosdrecht, and Lutgarde Raskin* Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, and Environmental Biotechnology Group, Department of Biotechnology, Delft University of Technology, Delft, The Netherlands
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In Nature microbial populations are subject to fluctuating nutrient levels. Nutrient abundance fluctuations are important for evolutionary and ecological dynamics in microbial communities since they impact growth rates, population sizes and microbial physiology. Here we use automated continuous-culture devices and single-cell imaging to show that when populations of Escherichia coli are subject...
متن کاملFeast or famine
Lysosomal storage diseases are metabolic disorders characterized by the accumulation of acidic vacuoles, and are usually the consequence of the deficiency of an enzyme responsible for the metabolism of vesicular lipids, proteins or carbohydrates. In contrast, mucolipidosis type IV (MLIV), results from the absence of a vesicular Ca ( 2+) release channel called mucolipin 1/transient receptor pot...
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In the current study, the effect of dietary supplementation of poly-β-hydroxybutyrate (PHB) on growth performance, digestive enzymes activity, body composition, non-specific immune response and diseases resistance of rainbow trout fingerlings were investigated. Five hundred and fifty-two healthy fingerlings (8.2±1.0 g) were randomly distributed in 12 tanks (150 L) at a density of 46 fish/ tank ...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 2006
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.72.4.2322-2330.2006