Table 1. Oxidative stress-related gene ontology (GO) terms over-represented among genes upregulated by excess light in D3 and/or D4 but not T2.

GO Cat.	GO Term	Description	D3	D4
P	GO:0006950	Response to oxidative stress	Y	Y
P	GO:0034599	Cellular response to oxidative stress	Y	Y
P	GO:0000302	Response to reactive oxygen species	Y	Y
P	GO:0034614	Cellular response to reactive oxygen species	Y	Y
P	GO:0042542	Response to hydrogen peroxide	Y
P	GO:0070301	Cellular response to hydrogen peroxide		Y
P	GO:0042744	Hydrogen peroxide catabolic process		Y
P	GO:0006800	Reactive oxygen species metabolic process		Y
F	GO:0016209	Antioxidant activity	Y	Y
F	GO:0004601	Peroxidase activity	Y	Y
F	GO:0004364	Glutathione transferase activity	Y	Y
F	GO:0004602	Glutathione peroxidase activity	Y
P	GO:0009812	Flavonoid metabolic process	Y	Y
P	GO:0009813	Flavonoid biosynthetic process	Y	Y
P	GO:0009699	Phenylpropanoid biosynthetic process	Y	Y
P	GO:0009698	Phenylpropanoid metabolic process	Y	Y

‘Y' indicates that the specified GO term is over-represented (false discovery rate <0.05; Fisher's exact test) among the upregulated genes in that species. GO categories are ‘Biological Process' (P) and ‘Molecular Function' (F).