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Nitrate reductase for nitrate analysis in water
Environmental Chemistry Letters, 2006 Nitrate analysis in water is one of the most frequently applied methods in environmental chemistry. Current methods for nitrate are generally based on toxic substances. Here, we show that a viable alternative method is to use the enzyme nitrate reductase.
Wilbur H Campbell, Campbell Wilbur H
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Nitrate reductase regulation: Effects of nitrate and light on nitrate reductase mRNA accumulation
Molecular Genetics and Genomics, 1989Regulation of nitrate reductase mRNA by light and nitrate was studied in barley seedlings using a partial cDNA clone as a probe. Nitrate reductase mRNA was detected in roots and leaves within 40 min after supplying nitrate to the roots and reached peak accumulation at 2 h in the roots and at 12 h in the leaves.
Robert L Warner +2 more
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A method for the determination of nitrate reductase
Journal of Proteomics, 1981A procedure for the assay of nitrate reductase based on Szekely's diaminodiphenylsulphone method of nitrate determination (Szekely, E. (1967) Talanta 14, 941-950) is described. The method is simple and sensitive, allowing determination of 1 microgram of nitrate in a volume of 1 ml or less.
R M Daniel
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Plant Science Letters, 1983
Summary Cells of Chlorella vulgaris (Cambridge culture collection, strain 211/12) grown in chemostat under conditions of nitrate limitation, exhibit very high levels of nitrate reductase activity. Similar levels of activity were found in cells grown in chemostat with a limited nitrogen source constituted by 75% ammonium plus 25% nitrate. By contrast,
Di Martino Rigano V +4 more
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Summary Cells of Chlorella vulgaris (Cambridge culture collection, strain 211/12) grown in chemostat under conditions of nitrate limitation, exhibit very high levels of nitrate reductase activity. Similar levels of activity were found in cells grown in chemostat with a limited nitrogen source constituted by 75% ammonium plus 25% nitrate. By contrast,
Di Martino Rigano V +4 more
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Nitrate reductase transcript is expressed in the primary response of maize to environmental nitrate
Plant Molecular Biology, 1992 The nitrate induction of NADH:nitrate reductase mRNA in maize roots, scutella and leaves was investigated in the presence and absence of inhibitors of protein synthesis.
M G Redinbaugh +2 more
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Dissimilatory nitrate reductases in bacteria
Biochimica et Biophysica Acta (BBA) - Gene Structure and Expression, 1999184 ref.
Philippot, Laurent, L., Hojberg, O.
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Molecular and General Genetics MGG, 1981
The existence of a nitrate-reductase operon in the tryptophane region was deduced from the effects of prophage insertion in each of chlI and chlC genes and from transposition of the Mu-mediated host DNA fragments of F-prime. This operon appears to be polarized from chlC to chlI and the gene order in the region is trp -- chlI -- chlC -- purB.
V, Bonnefoy-Orth +3 more
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The existence of a nitrate-reductase operon in the tryptophane region was deduced from the effects of prophage insertion in each of chlI and chlC genes and from transposition of the Mu-mediated host DNA fragments of F-prime. This operon appears to be polarized from chlC to chlI and the gene order in the region is trp -- chlI -- chlC -- purB.
V, Bonnefoy-Orth +3 more
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The Prokaryotic Nitrate Reductases
2007This chapter reviews the structural organization and bioenergetics of the four prokaryotic NO3 reductases and the eukaryotic enzyme and explores the possible mechanisms of NO3 transport. The membrane-bound NO3- reductase with the active site facing the cytoplasm is usually a three-subunit enzyme composed of NarGHI.
Richardson, David J. +2 more
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The nitrate reductase of Chlorella pyrenoidosa
Biochimica et Biophysica Acta (BBA) - Enzymology, 1971Abstract 1. 1. A nitrate reductase (NADH:nitrate oxidoreductase, EC 1.6.6.1), which catalyzes the reduction of nitrate to nitrite by NADH, has been found to be present in fresh extracts of nitrate-grown Chlorella pyrenoidosa in the form of a precursor of low activity.
B, Vennesland, C, Jetschmann
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Properties of a nitrate reductase of Chlorella
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1972Abstract 1. An NADH-nitrate oxidoreductase (EC 1.6.6.1) of Chlorella has the unusual property of existing in cell-free extracts mainly in the form of an inactive precursor which can be activated by a variety of procedures. This enzyme is associated with a cytochrome of the b type. 2. The inhibitors, azide, cyanate, thiocyanate and nitrite, react
L P, Solomonson, B, Vennesland
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