Factors Affecting the Methanogenic Activity of Methanothrix soehngenii VNBF
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چکیده
منابع مشابه
Factors Affecting the Methanogenic Activity of Methanothrix soehngenii VNBF.
Methane production by Methanothrix soehngenii VNBF grown on acetate (50 mM) as the sole carbon and energy source was influenced by the addition of Fe, trace elements, and pesticides. The addition of Fe and trace elements significantly enhanced the rate of CH(4) production. The addition of pesticides in the early growth phase caused complete inhibition. However, less inhibition was noted when pe...
متن کاملCloning, expression, and sequence analysis of the genes for carbon monoxide dehydrogenase of Methanothrix soehngenii.
The cdhA and cdhB genes that code for the large and the small subunits of carbon monoxide dehydrogenase (CDH), respectively, were isolated from a genomic library of Methanothrix soehngenii DNA in Escherichia coli, using polyclonal antibodies raised against purified CDH. After introduction in E. coli or Desulfovibrio vulgaris, the cdh genes appeared to be expressed irrespective of their orientat...
متن کاملComparison of acetate utilization among strains of an aceticlastic methanogen, Methanothrix soehngenii.
The kinetics of acetate utilization by concentrated suspensions of cells was examined in five strains of Methanothrix soehngenii. The rate of acetate utilization by all strains was dependent on the initial acetate concentration and followed simple Michaelis-Menten kinetics. The ability to utilize acetate differed among the various strains of M. soehngenii and was highest in the strain designate...
متن کاملMethanogenesis in an Upflow Anaerobic Sludge Blanket Reactor at pH 6 on an Acetate-Propionate Mixture.
High-rate anaerobic digestion can be applied in upflow anaerobic sludge blanket reactors for the treatment of various wastewaters. In upflow anaerobic sludge blanket reactors, sludge retention time is increased by a natural immobilization mechanism (viz. the formation of a granular type of sludge). When this sludge is cultivated on acid-containing wastewater, the granules mainly consist of an a...
متن کاملFactors affecting aspartase activity.
Depue, Robert H. (Hahnemann Medical College, Philadelphia), and Albert G. Moat. Factors affecting aspartase activity. J. Bacteriol. 82:383-386. 1961.-Cells of Escherichia coli grown in a glucose-mineral salts medium contain about one-fifth the amount of aspartase activity observed in cells grown in a yeast extract-peptone medium. The aspartase activity of the cells grown in glucose-salts medium...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 1987
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.53.12.2978-2982.1987