were significantly reduced in the PlusN treatment of both the irrigated and nonirrigated environments, N concentration was not significantly different between N treatments in the irrigated environment (3.
Sinclair and Serraj (1995) reported that warm-season species that accumulated high concentrations of ureides
(>200 mmol [L.
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.
The accumulation of ureides
in response to drought has been noted in previous reports (de Silva et al.
Nevertheless, the accumulation of ureides
when grown on 0.
were extracted by boiling leaf samples in 1 mL of 0.
2] fixation, and increased leaf ureides
would reflect decreased breakdown due to leaf asparagine accumulation.
It is unknown whether soybean germplasm exist that does not transport ureides
like those of grain legume species with [N.
and amides as N sources for soybean seed growth and maturation in vitro.
The rapid decrease in ARA in response to allantoin indicates the inhibitory nature of ureides
on nodule activity.
On Day 14 of the treatment period, the +Mn treatment for KS4895 had a greater concentration of petiole ureides
than the -Mn treatment of KS4895 or either Mn treatment for Jackson.
Role of amides, amino acids, and ureides
, in the nutrition of developing soybean seeds.