NITRATE REDUCTION II
نویسندگان
چکیده
منابع مشابه
Nitrate Storage and Dissimilatory Nitrate Reduction by Eukaryotic Microbes
The microbial nitrogen cycle is one of the most complex and environmentally important element cycles on Earth and has long been thought to be mediated exclusively by prokaryotic microbes. Rather recently, it was discovered that certain eukaryotic microbes are able to store nitrate intracellularly and use it for dissimilatory nitrate reduction in the absence of oxygen. The paradigm shift that th...
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Denitrification and dissimilatory nitrate reduction to ammonium (DNRA) are processes occurring simultaneously under oxygen-limited or anaerobic conditions, where both compete for nitrate and organic carbon. Despite their ecological importance, there has been little investigation of how denitrification and DNRA potentials and related functional genes vary vertically with sediment depth. Nitrate ...
متن کاملEnzymic Assimilation of Nitrate in Tomato Plants. II. Reduction of Nitrite to Ammonia.
It is generally assumed at present that nitrate is reduced to the level of amino-nitrogen or ammonia, via nitrite (20, 21, 32). Support for this assumption comes from the demonstration of a widespread occurrence of nitrate reductase in higher plants (27). However, as was pointed out previously (27), a final decision as to the validity of this assumption awaits the characterization of an enzyme ...
متن کاملSynthesis of palladium nanoparticles by sonochemical reduction of palladium(II) nitrate in aqueous solution.
The sonochemical synthesis of stable palladium nanoparticles has been achieved by ultrasonic irradiation of palladium(II) nitrate solution. The starting solutions were prepared by the addition of different concentrations of palladium(II) nitrate in ethylene glycol and poly(vinylpyrrolidone) (PVP). The resulting mixtures were irradiated with ultrasonic 50 kHz waves in a glass vessel for 180 min....
متن کاملNitrate Reduction and Assimilation in Chlorella
1. Nitrate reduction and assimilation have been studied in Chlorella pyrenoidosa under growth conditions by observing effects on the CO(2)/O(2) gas exchange quotient. 2. During assimilation of glucose in the dark, nitrate reduction is noted as an increase in the R.Q. to about 1.6 caused by an increased rate of carbon dioxide production. 3. During photosynthesis at low light intensity nitrate re...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1957
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.74.1.60-66.1957