Evidence against incorporation of exogenous thymidine by sulfate-reducing bacteria
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چکیده
منابع مشابه
Fractionation of Hydrogen Isotopes by Sulfate- and Nitrate-Reducing Bacteria
Hydrogen atoms from water and food are incorporated into biomass during cellular metabolism and biosynthesis, fractionating the isotopes of hydrogen-protium and deuterium-that are recorded in biomolecules. While these fractionations are often relatively constant in plants, large variations in the magnitude of fractionation are observed for many heterotrophic microbes utilizing different central...
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The colony formation of sulfate-reducing bacteria, Desulfovibrio desulfuricans and Desulfotomaculum orientis, on agar plates well fitted the theoretical curve of the FOR model proposed by Hattori (1985) The estimates of A for both strains dropped from 5 to I day-1 with cultivation in a liquid medium or starvation in a buffer solution, while that of tr was not affected so much The estimates of h...
متن کاملEnzymatic recovery of elemental palladium by using sulfate-reducing bacteria
Worldwide usage of platinum group metals is increasing, prompting new recovery technologies. Resting cells of Desulfovibrio desulfuricans reduced soluble Pd2+ to elemental, cell-bound Pd0 supported by pyruvate, formate, or H2 as the electron donor without biochemical cofactors. Pd reduction was O2 insensitive, opening the way for recycling and recovery of Pd under oxic conditions.
متن کاملBioremediation by Sulfate Reducing Bacteria of Acid Mine Drainage
Mining activity produces metal sulfide wastes particularly pyrite which remain in the mine long after operations cease. When water percolates through a mine where oxygen is present, a series of chemical reactions occur which produce extremely low pH and high concentrations of toxic sulfate and metal ions. This toxic leachate can cause severe aquatic habitat degradation downstream of the mine. T...
متن کاملMetabolic Flexibility of Sulfate-Reducing Bacteria
Dissimilatory sulfate-reducing prokaryotes (SRB) are a very diverse group of anaerobic bacteria that are omnipresent in nature and play an imperative role in the global cycling of carbon and sulfur. In anoxic marine sediments sulfate reduction accounts for up to 50% of the entire organic mineralization in coastal and shelf ecosystems where sulfate diffuses several meters deep into the sediment....
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ژورنال
عنوان ژورنال: Limnology and Oceanography
سال: 1990
ISSN: 0024-3590
DOI: 10.4319/lo.1990.35.6.1401