Results 321 to 330 of about 579,869 (390)
Some of the next articles are maybe not open access.
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
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, 1999184 ref.
Philippot, Laurent, L., Hojberg, O.
openaire +4 more sources
Nitrate reductases inEscherichia coli
Antonie van Leeuwenhoek, 1994Escherichia 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.
V, Bonnefoy, J A, Demoss
openaire +2 more sources
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
openaire +4 more sources
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
openaire +4 more sources
Bacterial dimethyl sulphoxide reductases and nitrate reductases
Biochemical Society Transactions, 1991interactions which can be done when more structural information is available, but they do provide order of magnitude estimates of interaction strengths. Evidently, considerable rearrangement of charge driven by reduction significantly raises the effective dielectric. It seems likely that centres S-2 and FR-2 are apparently low-potential clusters merely
McEwan, Alastair G. +6 more
openaire +3 more sources
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
openaire +3 more sources
Nitrate reductase regulation: Effects of nitrate and light on nitrate reductase mRNA accumulation
Molecular and General Genetics MGG, 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.
James M. Melzer +2 more
openaire +1 more source
Histochemical localization of nitrate reductase
Histochemistry, 1981NADH-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.
K C, Vaughn, S O, Duke
openaire +2 more sources
Environmental Science and Technology
The recently proposed partial denitrification (PD), terminating nitrate reduction to nitrite, has been regarded as a promising alternative to nitrite supplying for anammox bacteria.
Zhi-Bin Wang +8 more
semanticscholar +1 more source
The recently proposed partial denitrification (PD), terminating nitrate reduction to nitrite, has been regarded as a promising alternative to nitrite supplying for anammox bacteria.
Zhi-Bin Wang +8 more
semanticscholar +1 more source
Reductive activation of nitrate reductases
Dalton Transactions, 2005Protein film voltammetry of Paracoccus pantotrophus respiratory nitrate reductase (NarGH) and Synechococcus elongatus assimilatory nitrate reductase (NarB) shows that reductive activation of these enzymes may be required before steady state catalysis is observed.
Field, Sarah J. +9 more
openaire +3 more sources