Adaptation of maize source leaf metabolism to stress related disturbances in carbon, nitrogen and phosphorus balance

Table 5 GO term enrichment in transcript groups significantly regulated by low temperature, low N or low P stress

Stress	Regulation	Process	Function	Compartment
LOW T	down	anion transport	heme binding	none significant
		phosphate transport	tetrapyrrole binding
		organic acid transport	phosphoric ester hydrolase
		amino acid phosphorylation	anion transmembrane transporter
		protein modification	phosphate transmembrane transporter
		lipid metabolism	protein kinase activity
		carbohydrate metabolism	transcription factor regulation
		gene expression	oxidoreductase regulation
		regulation of nitrogen metabolism	lipase activity
			sugar binding
	up	translation	glycosyl bond hydrogenase	ribosome
		protein metabolism		cytoplasm
		nitrogen compound metabolism
		gene expression
		polysaccharide metabolism
LOW N	down	nitrogen compound metabolism	phosphoric ester hydrolase	none significant
		phosphate transport	phosphate transmembrane transport
		oligosaccharide biosynthesis	phosphatase
		trehalose biosynthesis	heme binding
		amine metabolism	tetrapyrrole binding
	up	none significant	glycosyl group transferase	none significant
			enzyme regulator activity
			nucleoside-triosephosphatase regulation
LOW P	down	none significant	none significant	none significant
	up	response to oxidative stress	oxidoreductase	cell wall
		lipid metabolism	heme binding
		polysaccharide metabolism	tetrapyrrole binding
		nitrogen compound metabolism	antioxidant activity
		phosphate transport	lipase activity
		cell wall degradation	phosphoric ester hydrolase
		alcohol metabolism	phosphate transmembrane transport
			phosphatase activity
			chitinase activity

Analysis was performed using the AgriGO webtool [36]. The results were summarized to avoid repetition.

ISSN: 1471-2164