Allantoic acid

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Related to Allantoic acid: allantoic fluid
(Chem.) See Allantoin.

See also: Allantoic

References in periodicals archive ?
The pathway by which blattabacteria metabolize uric acid begins with the conversion of uric acid to allantoin, followed by allantoic acid, glyoxylate, glycerate, and finally pyruvate (Donnellan and Kilby 1967).
The metabolic products of [N.sub.2] fixation in legumes are reported to be the amide asparagine or the ureides allantoin and allantoic acid (Streeter, 1991).
However, from our data, asparagine is the free amino acid found at the highest concentration, 213 to 290 [micro]mol [g.sup.-1] of dry leaf tissue (with a ratio of 2 moles N for every mole of asparagine), and allantoin and allantoic acid are at lower concentrations, with about 1 to 4 [micro]mol [g.sup.-1] of dry leaf tissue (with a ratio of 4 moles N for every mole of ureide).
The ureides, allantoin and allantoic acid, were first identified as important nitrogenous compounds in soybean in 1970 by Ishizuka.
Only total ureide (sum of allantoin and allantoic acid) was analyzed.
This sensitivity is not universal among grain legumes and appears to be a trait of those species that transport ureides (allantoin and allantoic acid) from the nodules to the shoot (Sinclair and Serraj, 1995).
Two enzymes have been identified for catalyzing allantoic acid breakdown in soybean.
An increase in leaf ureides (allantoin and allantoic acid), the major nitrogen compounds exported from soybean nodules, and a simultaneous decrease in nodule activity is a major feature of the drought-stress response.