noun chem. any of a class of organic compounds derived from urea by replacing one or more of its hydrogen atoms by organic groups. any of a class of derivatives of urea and carboxylic acids, in which one or more of the hydrogen atoms have been replaced by acyl groups: includes the cyclic ureides, such as alloxan.

What is Ureides in biology?

Ureides are a group of compounds that are acyl derivatives of urea. Soybean plant export fixed nitrogen as ureides. ... Ureides are synthesized in the nitrogen fixation process, has more nitrogen than to carbon, may accumulate in the plant and cause a feedback inhibition of nitrogen fixation under drying conditions or.

What are Ureides in plants?

Ureides are stored and assimilated mainly in the shoot. The precise pathways, localization and regulation of ureide assimilation are poorly understood and require further investigation. Similarities exist between the properties of the enzymes involved in ureide assimilation in higher plants and in micro-organisms.