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Does Nitrate Reductase Play a Role in Silver Nanoparticle Synthesis? Evidence for NADPH as the Sole Reducing Agent

ACS Sustainable Chemistry and Engineering, 2019
A leading hypothesis for silver nanoparticle biosynthesis suggests that the enzyme nitrate reductase plays a key role in the process, assisted by the coenzyme nicotinamide adenine dinucleotide phosphate (NADPH).
S. Hietzschold   +4 more
semanticscholar   +1 more source

Dissimilatory nitrate reductases in bacteria

Biochimica et Biophysica Acta (BBA) - Gene Structure and Expression, 1999
184 ref.
Philippot, Laurent, L., Hojberg, O.
openaire   +4 more sources

Nitrate reductase regulation: Effects of nitrate and light on nitrate reductase mRNA accumulation

Molecular and General Genetics MGG, 1989
Regulation 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.
James M. Melzer   +2 more
openaire   +2 more sources

Nitrate reductase and cytochrome bnitrate reductase structural genes as parts of the nitrate reductase operon

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.
Violaine Bonnefoy-Orth   +3 more
openaire   +3 more sources

A rapid, simple spectrophotometric method for simultaneous detection of nitrate and nitrite.

Nitric oxide, 2001
Numerous methods are available for measurement of nitrate (NO(-)(3)). However, these assays can either be time consuming or require specialized equipment (e.g., nitrate reductase, chemiluminescent detector).
K. Miranda, M. Espey, D. Wink
semanticscholar   +1 more source

Histochemical localization of nitrate reductase

Histochemistry, 1981
NADH-dependent nitrate reductase (E.C. 1.6.6.1) was ultrastructurally localized in norflurazon-treated and control soybean cotyledons [Glycine max (L.) Merr.] by a method based upon the increase in osmiophilia due to the formation of an azo dye. The reaction product was observed in small vesicles throughout the cytoplasm.
S. O. Duke, Kevin C. Vaughn
openaire   +3 more sources

Nitrate reductases inEscherichia coli

Antonie van Leeuwenhoek, 1994
Escherichia coli expresses two different membrane-bound respiratory nitrate reductases, nitrate reductase A (NRA) and nitrate reductase Z (NRZ). In this review, we compare the genetic control, biochemical properties and regulation of these two closely related enzyme systems.
Violaine Bonnefoy, John A. Demoss
openaire   +3 more sources

The nitrate reductase of Chlorella pyrenoidosa

Biochimica et Biophysica Acta (BBA) - Enzymology, 1971
Abstract 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.
Birgit Vennesland, Claus Jetschmann
openaire   +3 more sources

Properties of a nitrate reductase of Chlorella

Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1972
Abstract 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
Birgit Vennesland, Larry P. Solomonson
openaire   +3 more sources

The Prokaryotic Nitrate Reductases

2007
This 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
openaire   +3 more sources

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