allantoic acid

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Related to allantoic acid: allantoic fluid

al·lan·to·ic ac·id

(ă-lan-tō'ik as'id),
Diureidoacetic acid; a degradation product of allantoin. An important source of nitrogen in plants.
References in periodicals archive ?
On Day 5 following the initiation of the ureide treatment, in situ leaf ureide degradation measurements (Vadez and Sinclair, 2000) were made for plants that had not been subjected to the addition of allantoic acid to the nutrient solution.
In these experiments, however, 3-mM allantoic acid was added to the nutrient solution and the solution lost through transpiration was replenished on each day with the nutrient solution containing ureide.
The addition of 5-mM allantoic acid to the nutrient solution resulted in steady increases of leaf ureide concentration during the following 3 d (Fig.
Leaf ureide concentrations following the addition of 3-mM allantoic acid to the nutrient solution varied considerably among genotypes.
Measurement of ureide concentration in leaves on Days 2 and 3 following the addition of allantoic acid to the hydroponic solution proved to be a relatively simple and an effective method for comparing genotypes.
This result indicates that except for PI 507414, these other genotypes are likely to rely on allantoate amidinohydrolase, which does not require Mn as a cofactor, as the enzyme for allantoic acid catabolism.
Since leaf ureide concentrations in this genotype were sensitive to the Mn treatment, these results indicate a dependence on allantoate amidohydrolase for allantoic acid degradation.