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. 2015 Dec 11;170(2):989–999. doi: 10.1104/pp.15.01776

Table I. Overrepresented functional categories in nitrate-specific and ammonium-specific transcriptional responses.

Functional Category Observed Frequency Expected Frequency P Value
Induced by nitrate
 Detoxification by modification 10.7% 0.1% 4.05E-11
 Cytokinin response 8.9% 0.1% 1.27E-06
 Cell growth/morphogenesis 12.5% 0.9% 3.60E-05
 Oxygen and radical detoxification 12.5% 0.9% 5.83E-05
 Electron transport 16.1% 2.5% 5.50E-04
Repressed by nitrate
 Metabolism of stilbenes, flavonoids 6.5% 0.2% 2.48E-03
 Oxygen and radical detoxification 10.9% 0.9% 3.68E-03
Induced by ammonium
 Lipid binding 16.7% 0.5% 1.13E-05
 Lipid/fatty acid transport 10.0% 0.4% 8.73E-03
Repressed by ammonium
 Cellular sensing and response to external stimulus 42.1% 4.7% 5.18E-05
 Nitrogen, sulfur, and selenium metabolism 15.8% 0.6% 7.87E-03