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
Nitrate Reductase Activity in Corn Seedlings as Affected by Light and Nitrate Content of Nutrient Media
Richard H. Hageman,Donna Flesher +1 more
TL;DR: It was shown that both light and nitrate are necessary for the formation of nitrate reductase in quantities required by the plant for normal growth.
Journal ArticleDOI
Spectrophotometric Method for Determining Hydroxylamine Reductase Activity in Higher Plants
D. S. Frear,R. C. Burrell +1 more
Journal ArticleDOI
Investigations on the denitrifying process in soil
J. Wijler,C. C. Delwiche +1 more
TL;DR: In this paper, the authors used the heavy isotope of nitrogen, N 15, to determine quantitatively the extent of nitrogen fixation and denitrification in soil, because by conventional methods, only the sum of these two processes their equilibrium state is found.
Journal ArticleDOI
On the Mechanism of the Decomposition of Hydrogen Peroxide by Catalase
David Keilin,E. F. Hartree +1 more
TL;DR: In a previous paper (Keilin and Hartree 1936) it was shown that catalase combines reversibly not only with KCN and H2S but also with NaN3, NH2OH, N2H4, NaF and NO, giving corresponding spectroscopically well defined compounds.