Inorganic nitrogen assimilation

papers submitted by contributors to the 6th International Symposium on Inorganic Nitrogen Assimilation, held in Reims, France, from 8-12 July 2001
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Oxford University Press , Oxford
Nitrogen -- Metabolism., Plants -- Assimilation., Plants, Effect of nitroge
Statementeditors, Peter J. Lea, Jean-Franc̦ois Morot-Gaudry, Bertrand Hirel.
SeriesJournal of experimental botany -- v. 53, no. 370.
ContributionsLea, Peter J., Morot-Gaudry, Jean-Francois., Hirel, Bertrand.
The Physical Object
Paginationp. 773-987 :
ID Numbers
Open LibraryOL16032213M

The major forms of inorganic nitrogen are N 2 gas, nitrate, nitrite, and ammonium. Organic nitrogen occurs in many forms, including amino acids, proteins, nucleic acids, nucleotides, and urea. The major fluxes in the nitrogen cycle include denitrification (using nitrate to oxidize organic C, yielding N 2), oxidation of ammonium to nitrate by chemosynthetic bacteria, assimilation of.

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Nitrogen assimilation is the formation of organic nitrogen compounds like amino acids from inorganic nitrogen compounds present in the environment.

Organisms like plants, fungi and certain bacteria that cannot fix nitrogen gas (N 2) depend on the ability to assimilate nitrate or ammonia for their needs.

Other organisms, like animals, depend entirely on organic nitrogen from their food. Ammonia assimilation is the uptake of NH 3 or NH 4 + by an organism into its biomass in the form of an organic nitrogen compound.

For organisms that can directly assimilate reduced inorganic nitrogen, this is an efficient process to incorporate nitrogen into biomass. Inorganic nitrogen assimilation in Chlamydomonas Article Literature Review (PDF Available) in Journal of Experimental Botany 58(9) February with Reads How we measure 'reads'.

Inorganic Nitrogen in Plants and Microorganisms summarizes new experimental data, ideas and conclusions on the whole metabolic spectrum: transport through the cell membranes, - the distribution within plant organs, - nitrate and nitrite reduction with their complicated genetic and physiological regulation, - the assimilation of ammonium and dinitrogen.

At a meeting of the Federation of European Societies of Plant Physiology in in Strasbourg the idea of having a special meeting on inorganic nitrogen metabolism on a more or less Inorganic nitrogen assimilation book level was born.

Originally it was planned to limit its content to the inorganic nitrogen metabolism of. NITRATE ASSIMILATION. The assimilation of NO 3 − involves just a few steps: uptake, reduction to nitrite, reduction to NH 4 + then incorporation into amino acids (Figure 1).Though simple, this pathway often provides the bulk of net nitrogen input, and, as a result, is tightly regulated to insure that NO 3 − assimilation is integrated into overall metabolism and growth of the by: Nitrate and ammonium are the main forms of inorganic nitrogen available to plants.

The present study aimed to investigate the metabolic changes caused by ammonium and nitrate nutrition in maritime pine (Pinus pinaster Ait.). Seedlings were grown with five solutions containing different proportions of nitrate and ammonium.

Their nitrogen status was characterized through analyses of their. Learn nitrogen assimilation with free interactive flashcards. Choose from 89 different sets of nitrogen assimilation flashcards on Quizlet.

INTRODUCTION.

Details Inorganic nitrogen assimilation EPUB

The assimilation of inorganic nitrogen into organic form has marked effects on plant productivity, biomass, and crop yield (Hageman and Lambert, ; Lawlor et al., ).As such, a tremendous amount of biochemical and physiological studies have been performed on nitrogen assimilatory enzymes from a variety of plant species, especially crops and by:   Major forms of inorganic N in soil are nitrate and ammonium, which plants absorb from roots.

In addition, some plants such as leguminous plants can fix atmospheric N2 symbiotically in association with nitrogen-fixing soil bacteria, rhizobia.

Ammonium is a key component in the assimilation of nitrogen into organic compounds, whether the N is First published: 06 Jun, Assimilation of nitrate and various other inorganic nitrogen compounds by different yeasts was investigated.

Nitrate, nitrite, hydroxylamine, hydrazine, ammonium sulphate, urea and L-asparagine. The activities of key enzymes in N assimilation (NR, PEPc and CA) were also measured to determine whether the activities and regulation of these could account for changes in N and C acquisition and assimilation.

Materials and Methods Growth conditions Seedlings (14 d Cited by: Start studying Chapter 22 - Nitrogen Assimilation, Biosynthetic Use, and Excretion. Learn vocabulary, terms, and more with flashcards, games, and other study tools.

Inorganic Nitrogen Metabolism Softcover reprint of the original 1st ed. Edition. the Federation of European Societies of Plant Physiology in in Strasbourg the idea of having a special meeting on inorganic nitrogen metabolism on a more or less European level was born.

the present state of research on nitrogen assimilation by Author: Wolfram R. Ullrich. experiment begun by Lawes and Gilbert init considers inorganic nitrogen assimilation followed by amino acid and protein biosynthesis and ends with a discussion of novel amino acids. Following this introductory paper, the book has six main sections.

The first on. Inorganic nitrogen assimilation in yeasts: alteration in enzyme activities associated with changes in cultural conditions and growth phase.

Bacteriol 25–Cited by:   Introduction. Nitrogen is quantitatively the most essential nutrient for plants and a major limiting factor in plant productivity. The major form of inorganic nitrogen that is available for the growth of rice plants in paddy soil is the ammonium ion (NH 4 +).The ammonia (NH 3) gas molecule is a weak base that protonates rapidly to form the NH 4 + ion with a dissociation constant of 10 − Cited by: Thus, what resulted was a Symposium, or rather an Advanced Course, on Inorganic Nitrogen Metabolism, including, in addition to algal biochemistry and physiology, some coverage of nitrogen- fIxing bacteria, a large area that could only be touched on during the course and in which newer ideas from molecular biology are much involved, and, to some.

The incorporation of inorganic nitrogen into cell material is known as nitrogen assimilation. Usually, ammonium is the preferred inorganic nitrogen source for microorganisms. Ammonium assimilation requires the transport of this ion into the cells and its further incorporation into carbon skeletons, mainly through the glutamine synthetase.

NITRATE ASSIMILATION. The assimilation of NO 3 − involves just a few steps: uptake, reduction to nitrite, reduction to NH 4 + then incorporation into amino acids ().Though simple, this pathway often provides the bulk of net nitrogen input, and, as a result, is tightly regulated to insure that NO 3 − assimilation is integrated into overall metabolism and growth of the by: Nitrogen fixation, in which nitrogen gas is converted into inorganic nitrogen compounds, is mostly (90 percent) accomplished by certain bacteria and blue-green algae.A much smaller amount of free nitrogen is fixed by abiotic means (e.g., lightning, ultraviolet radiation, electrical equipment) and by conversion to ammonia through the Haber-Bosch process.

Dissolved Inorganic Nitrogen. Nitrogen is a nutrient of great environmental concern, because when in excess it is responsible for eutrophication. All living organisms need nutrients to grow and the nutrients need to be in the water to support the food chain. However, nutrients in excess disturb the natural food chain because some organisms.

Other articles where Nitrogen assimilation is discussed: nitrogen cycle: Nitrates and ammonia resulting from nitrogen fixation are assimilated into the specific tissue compounds of algae and higher plants. Animals then ingest these algae and plants, converting them into their own body compounds.

Nitrogen Assimilation by Plants: Physiological, Biochemical, and Molecular Aspects - CRC Press Book This publication contains the most important information acquired over the last twenty years in the area of nitrogen metabolism and envisages new strategies to improve plant species of agronomic value by devising new techniques for growing them.

pathway of nitrogen assimilation in plants Inorganic nitrogen is assimilated into the amino acids this review we discuss mainly nitrogen assimilation in crop plants and. Introduction: Nitrogen N compounds are found in all plant tissues. Nitrogen fixation by free‐living organisms is compared with the process of symbiotic nitrogen fixation.

Inorganic nitrogen metabolism is discussed with regard to the nitrification and denitrification processes. The various mechanisms of assimilation of inorganic nitrogen by microorganisms are described in detail.

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Wikimedia Commons has media related to Inorganic nitrogen compounds. For the phosphorus analogues, please see Category:Inorganic phosphorus compounds.

Subcategories.

Description Inorganic nitrogen assimilation FB2

This category has the following 5 subcategories, out of 5 total. I Inorganic amines‎ (9 P) Inorganic imides‎ (1 P) M. Book Description. This publication contains the most important information acquired over the last twenty years in the area of nitrogen metabolism and envisages new strategies to improve plant species of agronomic value by devising new techniques for growing them.The assimilation of inorganic nitrogen by Scopulariopsis brevicaulis and some physiologically similar species has been studied.

Their failure to assimilate completely from ammonium sulphate has been shown to be due to the fall in pH of the medium induced by the initial uptake of ammonia.

2. Complete assimilation of ammonia takes place in the.Sulfur is an essential element for growth and physiological functioning of r, its content strongly varies between plant species and it ranges from to 6% of the plants' dry weight.

Sulfates taken up by the roots are the major sulfur source for growth, though it has to be reduced to sulfide before it is further metabolized. Root plastids contain all sulfate reduction enzymes.