ureide


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u·re·ide

(yūr'ē-īd),
Any compound of urea in which one or more of its hydrogen atoms have been substituted by acid radicals.

ureide

any compound formed between urea and organic acids.
References in periodicals archive ?
Across all biomass harvests, in the irrigated environment, ureide concentrations ranged from 2.
Leaflets were separated from the petiole, oven-dried (40[degrees]C for 2 d), finely ground, and analyzed for ureide concentration.
Other nonnodulating genotypes have subsequently been isolated and one study showed that, in fact, the nonnodulating mutants contained much lower concentration of ureide in developing pods (Matsumoto et al.
From a plant-breeding standpoint, the leaf color method used in this study for identifying promiscuous genotypes would be most rapid and least expensive compared with other frequently used methods such as acetylene reduction (Sinclair and Serraj, 1995; Giller, 1987; Chowdhury and Doto, 1981) or xylem ureide assay (Herridge and Rose 1994; Kueneman et al.
Because ureide concentration in xylem sap (Serraj and Sinclair, 1996) and stem extracts (de Silva et al.
On the basis of responses to Mn, Vadez and Sinclair (2000) subsequently concluded that these two cultivars, in fact, employed differing catabolic enzymes as originally reported, and that there was genetic variation in the Mn requirement involved in ureide degradation.
The involvement of Mn in the response to water deficit and the regulation of ureide levels in leaves of some soybean cultivars has been documented in experiments in which increased Mn supply increased leaf ureide degradation rates and ameliorated [N.
1999a) proposed that decreased demand for amino acids during water deficit resulted in asparagine accumulation, which has been shown to inhibit leaf ureide breakdown (Lukaszewski et al.
1996) proposed an index based on ureide levels per unit petiole dry weight.
Manganese is required for ureide degradation in leaves, and it was hypothesized that increased leaf [Mn.