Next to carbon (C) catabolite regulation, the nitrogen (N) regulation is also important [170], and the silicon-cell models have been developed based on experimental kinetic data for the enzymes, involved that predict the flux of assimilation of extracellular ammonia into glutamate in E. coli.
The progenitor markers (including Eve) and signaling proteins analyzed (Fig. S1) are under Ras and N regulation [11].
Whether some of them are more specifically involved in N regulation requires further investigation.
Previously we identified regions of the spinach nitrite reductase (NiR) promoter that are involved in N regulation [ 28, 29, 58].
The putative regulatory elements identified in these clusters along with several other known motifs involved in N and C metabolism as well as stress response revealed a complex picture of plant N regulation.
To find key pathways for the N regulation of elongation growth, the 1037 N-responsive DEGs in the EZ of the poplar stem were investigated with the PopNet tool in Popgenie v3.0.
Therefore, although loss of dx alone has little effect on leg development, its loss leaves N regulation balanced on a knife edge that can easily lead to breaching of either upper or lower thresholds of signaling.
Arabidopsis has 30 GATA transcription factor genes [ 39, 59], but only a few of them have been functionally characterized [ 60- 63], and none has been shown to be directly involved in N regulation.
The initial small difference in the N pathway activity between the apical and basal ISC daughter cells is amplified by N feedback regulation: N signaling in the apical cell inhibits Dl expression and Dl accumulation in the basal cell further strengthens N signaling in its apical sibling.
Spatially targeted N-regulations aim at exploiting the considerable spatial differences in the natural N-reduction taking place in groundwater and surface water.
