Table I.

Summary of LC-MS-MS analysis of oxidation products from labeled ABA supplied to B. napus siliques

Supplied ABA	Retention Time	Deuterated Metabolites	Prominent Ions (m/z) (Abundance)
	min
[5, 8′-2H4]ABA	9.3	[5, 8′, 8′-2H3]PA	282 ([M-H]−, 5), 206 (53), 170 (26), 139 (100), 137 (7)
	10.4	[5, 8′, 8′, 8′-2H4]7′-OH ABA	283 ([M-H]−, 17), 221 (65), 209 (57), 154 (100)
	11.5	[5, 8′, 8′, 8′-2H4]neoPA	283 ([M-H]−, 9), 209 (100), 142 (21), 140 (38)
[8′, 9′-2H6]ABA	9.3	[8′, 8′, 9′, 9′, 9′-2H5]PA	284 ([M-H]−, 8), 208 (38), 173 (21), 142 (100), 140 (6)
	10.4	[8′, 8′, 8′, 9′, 9′, 9′-2H6]7′-OH ABA	285 ([M-H]−, 8), 223 (60), 211 (38), 157 (100)
	11.5	[8′, 8′, 8′, 9′, 9′-2H5]neoPA	284 ([M-H]−, 24), 208 (100), 142 (54), 140 (28)