Book ChapterDOI
Enzymes of Inorganic Nitrogen Metabolism
E. J. Hewitt,D. J. D. Nicholas +1 more
- pp 67-172
TLDR
The enzymes considered in this chapter include nitrate reduct enzyme, nitrite reductase, hyponitrite reduCTase, hydroxylamine reductases, enzymes of denitrification, and some other enzymes such as aldehyde oxidase with related properties.Abstract:
The enzymes considered in this chapter include nitrate reductase, nitrite reductase, hyponitrite reductase, hydroxylamine reductase, enzymes of denitrification, and some other enzymes such as aldehyde oxidase with related properties. The properties of the various enzymes are described in relation to the different plants and micro-organisms from which they have been obtained1.read more
Citations
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Journal ArticleDOI
Studies of nitrate reductase in marine phytoplankton1
TL;DR: In this article, the enzyme nitrate reductase was found to be active in marine phytoplankton when growing on ammonium or when the nitrogen source was depleted.
Journal ArticleDOI
Nitrate, Nitrite and Ammonia Assimilation by Leaves : Effect of Light, Carbon Dioxide and Oxygen
D. T. Canvin,Craig A. Atkins +1 more
TL;DR: The assimilation of nitrate, nitrite and ammonia in barley, wheat, corn and bean leaves was studied using 15N-labelled molecules and either leaf chamber experiments with the uptake of the nitrogen species in the transpiration stream, or vacuum-infiltration experiments.
Journal ArticleDOI
Some Characteristics of Nitrate Reductase From Higher Plants
TL;DR: It is concluded that nitrate reductase is a single moiety with the ability to utilize either NADH or FMNH(2) as cofactor and that in vivo NADH is the electron donor and that nitrates reductases in higher plants should be designated NADH:nitrate reduCTase (E.C.6.1).
Journal ArticleDOI
Ferredoxin-dependent photosynthetic reduction of nitrate and nitrite by particles of anacystis nidulans
TL;DR: In its presence, the alga particles catalyze the gradual photoreduction of nitrate to nitrite and ammonia, a process that can thus be considered as one of the most simple and relevant examples of Photosynthesis.
Journal ArticleDOI
Inorganic nitrogen assimilation of ditylum brightwellii, a marine plankton diatom1,2
Richard W. Eppley,Jane N. Rogers +1 more
TL;DR: Ammonium and nitrate are accumulated in the vacuolated cells of the diatom and these intracellular pools serve as substrate for the assimilatory enzymes, while nitrite is either not accumulated or is concentrated, in a very small cellular compartment.
References
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Journal ArticleDOI
Interference by Azide with Diazotization Procedures used in Biological Assay Systems
TL;DR: In this paper, it was shown electrophoretically the presence of p-nitroaniline in the ether extract and that sodium azide at the above concentration has no inhibitory effect on the nitro-reductase system.
Journal ArticleDOI
Research on glutamine synthesis and glutaminic acid dehydrogenase in Allomyces arbuscula
Journal ArticleDOI
Measurement of inhibition by azide in biochemical assay systems involving nitrite estimation by diazotization.
E. J. Hewitt,D. G. Hallas +1 more
TL;DR: It is suggested that the reported inhibition by azide of numerous enzyme systems in which nitrite production has been measured might require re-investigation.
Journal ArticleDOI
Ammonia dehydrogenase, hydroxylamine dehydrogenase, hyponitrite dehydrogenase and nitrite dehydrogenase
Kazuo Yamafuji,Yutaka Osajima +1 more
TL;DR: This work has demonstrated that the dehydrogenating system in the cyclic processes can be separated from the reducing one, and that each dehydrogenase behaves specifically towards different inhibitors.
Journal ArticleDOI
A manometric determination of nitrate reductase activity.
TL;DR: A manometric procedure for evaluating nitrite has been devised and applied to a determination of nitrate reductase activity in a halophilic vibrio in the presence of high concentrations of salt and pigmented addenda.