Results 71 to 80 of about 478 (121)

Enzymes of ammonia assimilation and ureide biogenesis in developing pigeonpea (Cajanus cajan L.) nodules [PDF]

open access: yes, 1985
Ammonia assimilatory and ureide biogenic enzymes were measured in the cytosol fraction of pigeonpea nodules during the period 15-120 days after sowing. The activity of enzymes involved in the initial assimilation of ammonia, i.e.
Singh, Randhir, Amarjit,
core   +2 more sources

Application of Nitrate, Ammonium, or Urea Changes the Concentrations of Ureides, Urea, Amino Acids and Other Metabolites in Xylem Sap and in the Organs of Soybean Plants (Glycine max (L.) Merr.)

open access: yes, 2021
Soybean (Glycine max (L.) Merr.) plants form root nodules and fix atmospheric dinitrogen, while also utilizing the combined nitrogen absorbed from roots.
Kuni Sueyoshi   +9 more
core   +1 more source

Ureide Metabolism in Non-nodulated Phaseolus vulgaris L [PDF]

open access: yes, 2017
The distribution of ureide-N was studied throughout vegetative and reproductive growth of non-nodulated Phaseolus vulgaris L. (bushbean) grown in nitrate nutrient solution.
THOMAS, R. J.   +2 more
core  

Allantoate Amidohydrolase OsAAH is Essential for Preharvest Sprouting Resistance in Rice

open access: yesRice
Preharvest sprouting (PHS) is an undesirable trait that decreases yield and quality in rice production. Understanding the genes and regulatory mechanisms underlying PHS is of great significance for breeding PHS-resistant rice.
Ting Xie   +10 more
doaj   +1 more source

Nitrogen Metabolism of Stizolobium aterrimum Grown in Soil Under Toxic Concentrations of Copper (Cu)

open access: yesHorticulturae
Copper (Cu) is a naturally occurring element in soils, and at adequate concentrations, it is essential for plant survival. However, excessive Cu can lead to contamination, impairing soil quality and affecting the development of living organisms.
Beatriz Gonçalves Pereira Costa   +8 more
doaj   +1 more source

Hidden Nickel Deficiency? Nickel Fertilization via Soil Improves Nitrogen Metabolism and Grain Yield in Soybean Genotypes

open access: yesFrontiers in Plant Science, 2018
Nickel (Ni)—a component of urease and hydrogenase—was the latest nutrient to be recognized as an essential element for plants. However, to date there are no records of Ni deficiency for annual species cultivated under field conditions, possibly because ...
Douglas Siqueira Freitas   +7 more
doaj   +1 more source

Solute transport within the legume nodule

open access: yes, 1996
"The hypothesis that primary C and N (sucrose and ureides) transport solutes may play a role as osmotica in the control of oxygen diffusion into the infected zone of the legume nodule was considered" -- p ...
SM Brown (9897308), Brown, Sharon M
core   +1 more source

Allocation of reserve nitrogen compounds during germination of Canavalia brasiliensis seeds

open access: yesBiotemas, 2013
Canavalia brasiliensis, commonly known as “feijão-bravo-do-ceará”, is an herbaceous plant with a great potential for biomass production and rusticity within the period of low water availability, coupled with the great effectiveness of nitrogen fixation ...
Leandro Ferreira Aguiar   +3 more
doaj  

Identification and Quantitation of Asparagine and Citrulline Using High-Performance Liquid Chromatography (HPLC)

open access: yes, 2007
High-performance liquid chromatography (HPLC) analysis was used for identification of two problematic ureides, asparagine and citrulline. We report here a technique that takes advantage of the predictable delay in retention time of the co-asparagine ...
Bruce W. Wood   +2 more
core   +1 more source

Xylem sap nitrogen compounds of some Crotalaria species

open access: yesScientia Agricola, 1999
Thirteen species of Crotalaria were analysed for nitrogen compounds in the xylem root bleeding sap. Amino acids were the main form of organic nitrogen found, but only traces of ureides were present. Of the four species analysed for amino acid composition,
Vitória Angela Pierre, Sodek Ladaslav
doaj  

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