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. 2004 Sep;136(1):2512–2522. doi: 10.1104/pp.104.044610

Table III.

Depletion of ammonium in cultures of wild-type and mutant plants

Culture Age Wild Type NR-Null Mutant
0 d 5,503 ± 185 5,503 ± 185
9 d 9.36 ± 1.27 5.95 ± 5.25
10 d 0.00 ± 0.00 0.00 ± 0.00

Seedlings were grown under hydroponic conditions with 2.5 mm (ammonium)2succinate as the sole nitrogen source. Ammonium concentrations (in μm and given as averages of triplicates with ses) were determined at the indicated days.