Results 1 to 10 of about 1,853 (161)
Determination of Ureides Content in Plant Tissues. [PDF]
Bio Protoc, 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 other than legumes.
Lescano I.
europepmc +6 more sources
Effect of Nitrogen Source on Ureides in Soybean [PDF]
Plant Physiology, 1984 In field-grown soybeans (Glycine max L. Merr. cv Harosoy), the percentage of N in the xylem as ureides increased with increasing N(2) fixation. During a 9-week collection period, the ureide content varied from 9.0 to 69.2% of the xylary N. Between 9 and 11 weeks (early pod fill), there was a good correlation (r = 0.93) between C(2)H(2) reduction and ...
David L Mcneil
exaly +3 more sources
Enzymes and cellular interplay required for flux of fixed nitrogen to ureides in bean nodules [PDF]
Nature Communications, 2022 Luisa Voß +2 more
exaly +2 more sources
Ureide Permease 5 (AtUPS5) Connects Cell Compartments Involved in Ureide Metabolism [PDF]
Plant Physiology, 2019 Allantoin is a purine oxidative product involved in long distance transport of organic nitrogen in nodulating legumes and was recently shown to play a role in stress tolerance in other plants. The subcellular localization of enzymes that catalyze allantoin synthesis and degradation indicates that allantoin is produced in peroxisomes and degraded in the
Ignacio Lescano +6 more
openaire +3 more sources
Gastrointestinal handling of glycosyl [13C]ureides [PDF]
European Journal of Clinical Nutrition, 2003 Lactose [(13)C]ureide has been proposed as a noninvasive marker for oro-caecal transit time in adults and children. The present study investigates the handling of lactose [(13)C]ureide ((13)C LU) and glucose [(13)C]ureide ((13)C GU) by the gastrointestinal tract and describes the metabolic fates of these substrates and describes the extent of tracer ...
D J, Morrison +3 more
openaire +2 more sources
Update on ureide degradation in legumes [PDF]
Journal of Experimental Botany, 2005 Warm season N2-fixing legumes move fixed N from the nodules to the aerial portions of the plant primarily in the form of ureides, allantoin and allantoate, oxidation products of purines synthesized de novo in the nodule. Ureides are also products of purine turnover in senescing tissues, such as seedling cotyledons.
Christopher D, Todd +5 more
openaire +2 more sources
Glycosyl ureides in ruminant nutrition [PDF]
British Journal of Nutrition, 1982 1. Glucosyl urea, lactosyl urea and galactosyl urea were prepared from pure sugars and urea and their purity confirmed by determination of their melting points, specific rotations and by mass spectrometry.2. Using whey as a lactose source, a range of conditions were examined for the preparation of lactosyl urea on a laboratory scale. Yields of 60% were
R J, Merry, R H, Smith, A B, McAllan
openaire +2 more sources
The metabolic fate of doubly labelled lactose-[13C, 15N]ureide after pre-dosing with different ureides [PDF]
European Journal of Clinical Nutrition, 2010 To date, the measurement of the orocaecal transit time (OCTT) with lactose-[(13)C]ureide usually requires a pre-dosing with the analogous substrate in its unlabelled form.In this study, the enzyme induction provoked by different unlabelled sugar ureides in OCTT measurements when using doubly labelled lactose-[(13)C, (15)N]ureide (DLLU) was evaluated ...
Wutzke, Klaus D., Mix, Johanna
openaire +3 more sources
, 2014 Citation: 'ureides' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.U06577 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms. Requests for commercial usage
openaire +1 more source
Ureide Catabolism of Soybeans [PDF]
Plant Physiology, 1987 Allantoin catabolism studies have been extended to intact leaf tissue of soybean (Glycine max L. Merr.). Phenyl phosphordiamidate, one of the most potent urease inhibitors known, does not inhibit (14)CO(2) release from [2,7-(14)C]allantoin (urea labeled), but inhibits urea dependent CO(2) release >/=99.9% under similar conditions. Furthermore, (14)CO(2)
R G, Winkler +3 more
openaire +2 more sources