Results 41 to 50 of about 78,037 (160)

The pathway of nitrogen assimilation in plants

open access: yesPhytochemistry, 1976
Abstract The major route of nitrogen assimilation has been considered for many years to occur via the reductive amination of α-oxoglutarate, catalysed by glutamate dehydrogenase. However, recent work has shown that in most bacteria an alternative route via glutamine synthetase and glutamine: 2-oxoglutarate aminotransferase (glutamate synthase ...
Miflin, B. J., Lea, P. J.
openaire   +1 more source

Nitrogen assimilation in soybean nodules [PDF]

open access: yesSoil Science and Plant Nutrition, 1980
In order to elucidate the pathways to assimilate the ammonia produced by Na-fixation in soybean nodules, UN-labeled compounds were administered to intact nodules or nodule slices pretreated with va...
Takuji Ohyama, Kikuo Kumazawa
openaire   +1 more source

Quantifying the fate of wastewater nitrogen discharged to a Canadian river

open access: yesFACETS, 2019
Addition of nutrients, such as nitrogen, can degrade water quality in lakes, rivers, and estuaries. To predict the fate of nutrient inputs, an understanding of the biogeochemical cycling of nutrients is needed. We develop and employ a novel, parsimonious,
Jason J. Venkiteswaran   +2 more
doaj   +1 more source

Alternate wetting and drying and nitrogen fertilizations under different soil conditions alter carbohydrate and nitrogen metabolisms in rice

open access: yesApplied Biological Chemistry
Rice (Oryza sativa L.), a key staple crop, contributes over 20% of the daily caloric intake for more than 3.5 billion people worldwide. The continuous growth of the global population necessitates a steady increase in rice production, promoting ...
Kyoung Rok Geem   +2 more
doaj   +1 more source

Improving Simulations of Rice Growth and Nitrogen Dynamics by Assimilating Multivariable Observations into ORYZA2000 Model

open access: yesAgronomy
The prediction of crop growth and nitrogen status is essential for agricultural development and food security under climate change scenarios. Crop models are powerful tools for simulating crop growth and their responses to environmental variables, but ...
Jinmin Li   +5 more
doaj   +1 more source

Nitrogen assimilation in soybean nodules [PDF]

open access: yesSoil Science and Plant Nutrition, 1981
Abstract The ureides, allantoin and allantoic acid, have been found to exist in a wide variety of plant species usually in very small amounts, but in some species they play an important role in the storage and transport of nitrogen (19). In soybean plants, a very high content of allantoin has been demonstrated in the stems or shoots, only when the ...
Takuji Ohyama, Kikuo Kumazawa
openaire   +1 more source

Nitrogen assimilation in Citrus based on CitEST data mining

open access: yesGenetics and Molecular Biology, 2007
Assimilation of nitrate and ammonium are vital procedures for plant development and growth. From these primary paths of inorganic nitrogen assimilation, this metabolism integrates diverse paths for biosynthesis of macromolecules, such as amino acids and ...
Ester Wickert   +3 more
doaj   +1 more source

Effects of fertilisers on pulse crop productivity and nitrogen assimilation on acid soil

open access: yesPlant, Soil and Environment, 2019
This research aimed to compare the productivity of three species of pulse plants (Vicia faba L., Pisum sativum L., Lupinus angustifolium L.) in acidic sandy loam soil and to determine the influence of NPK (N0P0K0, N0P27K73, N30P27K73) fertilisers on ...
Liudmila Tripolskaja, Rita Asakaviciute
doaj   +1 more source

Proteomic and Transcriptomic Analyses of “Candidatus Pelagibacter ubique” Describe the First PII-Independent Response to Nitrogen Limitation in a Free-Living Alphaproteobacterium

open access: yesmBio, 2013
Nitrogen is one of the major nutrients limiting microbial productivity in the ocean, and as a result, most marine microorganisms have evolved systems for responding to nitrogen stress.
Daniel P. Smith   +7 more
doaj   +1 more source

Alleviation of Nitrogen and Sulfur Deficiency and Enhancement of Photosynthesis in Arabidopsis thaliana by Overexpression of Uroporphyrinogen III Methyltransferase (UPM1)

open access: yesFrontiers in Plant Science, 2018
Siroheme, an iron-containing tetrapyrrole, is the prosthetic group of nitrite reductase (NiR) and sulfite reductase (SiR); it is synthesized from uroporphyrinogen III, an intermediate of chlorophyll biosynthesis, and is required for nitrogen (N) and ...
Sampurna Garai, Baishnab C. Tripathy
doaj   +1 more source

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