Results 1 to 10 of about 1,091 (176)
Determination of Ureides Content in Plant Tissues [PDF]
Bio-Protocol, 2020 The ureides allantoin and allantoate are the main organic nitrogen compounds transported in several legumes, predominantly from N2 fixation. Moreover, recent studies point out a remarkable role for allantoin during several stress responses of plants ...
Ignacio Lescano
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Nitrogen Metabolism in Non-Nodulated and Nodulated Soybean Plants Related to Ureide Synthesis
Nitrogen, 2023 Soybean plants can fix atmospheric N2 in the root nodule, a symbiotic organ with rhizobia. The primary forms of N transported from N2 fixation are ureides, allantoate, and allantoin, supplemented with asparagine.
Takuji Ohyama +4 more
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Effects of Nodulation on Metabolite Concentrations in Xylem Sap and in the Organs of Soybean Plants Supplied with Different N Forms [PDF]
Metabolites, 2023 The effects of nodulation on N metabolism in soybean plants supplied with various forms of N are not fully understood. Ureides are the principal forms of N transported from nodules, but nitrate and asparagine are the primary N compounds transported from ...
Takuji Ohyama +3 more
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Allantoate transport in Saccharomyces cerevisiae. [PDF]
Journal of Bacteriology, 1979 Allantoate uptake appears to be mediated by an energy-dependent active transport system with an apparent Michaelis constant of about 50 microM. Cells were able to accumulate allantoate to greater than 3,000 times the extracellular concentration. The rate of accumulation was maximum at pH 5.7 to 5.8.
V, Turoscy, T G, Cooper
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Enzymic degradation of allantoate in developing soybeans. [PDF]
Plant Physiology, 1985 A Mn(2+)-dependent enzymic breakdown of allantoate has been detected in crude and partially purified extracts of developing soybeans. The products detected were CO(2), NH(3), glyoxylate, labile glyoxylate derivatives, and low levels of urea. Urea is initially produced at less than 10% the rate of urease-independent CO(2) release indicating that the ...
D D Randall +2 more
exaly +3 more sources
Asparagine and boric Acid cause allantoate accumulation in soybean leaves by inhibiting manganese-dependent allantoate amidohydrolase. [PDF]
Plant Physiology, 1992 Our previous work demonstrated substantial accumulation of allantoate in leaf tissue of nodulated soybeans (Glycine max L. Merr., cv Williams) in response to nitrogen fertilization. Research was continued to determine the effect of nitrate and asparagine on ureide assimilation in soybean leaves.
D D Randall +2 more
exaly +3 more sources
Acta Agriculturae Slovenica, 2022 Ureidic legumes such as common bean (Phaseoulus valgaris L.) plants export nitrogen from the nodules to shoots and leaves as ureides during symbiotic biological nitrogen fixation. Common bean gene encoding allantoinase (allantoin amidohydrolase, EC 3.5.2.
Motlalepula PHOLO-TAIT +7 more
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A rice XANTHINE DEHYDROGENASE gene regulates leaf senescence and response to abiotic stresses
Crop Journal, 2022 Xanthine dehydrogenase, a member of the molybdenum enzyme family, participates in purine metabolism and catalyzes the generation of ureides from xanthine and hypoxanthine.
Jiangmin Xu +11 more
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Molecules, 2023 Allantoinase (ALLase; EC 3.5.2.5) possesses a binuclear metal center in which two metal ions are bridged by a posttranslationally carbamylated lysine. ALLase acts as a key enzyme for the biogenesis and degradation of ureides by catalyzing the conversion ...
Yen-Hua Huang +7 more
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Harnessing natural diversity to probe metabolic pathways. [PDF]
PLoS Genetics, 2005 Analyses of cellular processes in the yeast Saccharomyces cerevisiae rely primarily upon a small number of highly domesticated laboratory strains, leaving the extensive natural genetic diversity of the model organism largely unexplored and unexploited ...
Oliver R Homann +3 more
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