Differential patterns of reactive oxygen species and antioxidative mechanisms during atrazine injury and sucrose-induced tolerance in Arabidopsis thaliana plantlets

Table 3 Expression of genes encoding enzymes involved in O₂^.- scavenging after 24 hours of treatment.

			Log₂(ratio)
Accession number	Gene description	Localisation	Treatment comparison
			S/M	MA/M	SA/M
At1g08830	Superoxide dismutase (Cu-Zn) (SODCC)/copper/zinc superoxide dismutase (CSD1)	Cytoplasm	0.80	-0.70	1.22
At2g28190	Superoxide dismutase (Cu-Zn). chloroplast (SODCP)/copper/zinc superoxide dismutase (CSD2)	Chloroplast	-0.73	nde	-0.76
At3g10920	Superoxide dismutase (Mn). mitochondrial (SODA)/manganese superoxide dismutase (MSD1)	Mitochondrion	nde	-1.23	nde
At4g25100	Superoxide dismutase (Fe). chloroplast (SODB)/iron superoxide dismutase (FSD1)	Chloroplast	nde	nde	nde
At5g18100	Superoxide dismutase (Cu-Zn)/copper/zinc superoxide dismutase (CSD3)	Peroxisome	nde	nde	nde
At5g23310	Superoxide dismutase (Fe)/iron superoxide dismutase 3 (FSD3)	Chloroplast	nde	-1.34	nde

Relative expressions of gene are given with their log₂(ratio) for sucrose versus mannitol (S/M), mannitol plus atrazine versus mannitol (MA/M) and sucrose plus atrazine versus mannitol (SA/M) comparison. nde: not differentially expressed. Genes with a Bonferroni P-value higher than 5% were considered as being not differentially expressed as described by Lurin et al. [85].

ISSN: 1471-2229