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. Author manuscript; available in PMC: 2011 Nov 1.
Published in final edited form as: Wiley Interdiscip Rev Syst Biol Med. 2010 Nov-Dec;2(6):683–693. doi: 10.1002/wsbm.87

Figure 2. Regulatory networks for N responses in Arabidopsis.

Figure 2

Nitrate and other N sources produced by nitrate reduction by the nitrate assimilatory pathway are able to act as signals that regulate molecular processes and pathways (purple rounded rectangles) leading to regulation of developmental processes (green rounded rectangles). The arrow heads or lines at the end of the edges indicate the direction of information or metabolic flow. 2-OG: 2-oxoglutarate; ASN1: Asparragine synthetase 1; CCA1: Circadian-clock associated 1; CKs: Cytokinins; GDH1: Glutamate dehydrogenase 1; GLN1: Glutamine synthetase 1; GOGAT: Glutamate synthase; IPT3: Isopentenyl transferase 3; NRTs : Nitrate transporters; NIA : Nitrate reductase; NiR: Nitrite reductase. See the text for more details.