Table 2. Discriminative metabolites whose detected levels decreased upon P depletion, predicted by OPLS-DA.

Retention time (min)	m/z	Lipid	Fold change in 1st trifoliate leaf (−P/+P)	Fold change in 2nd trifoliate leaf (−P/+P)
4.58	786.6006	PC_36:2 ([M+H]+)	0.375	0.283
4.87	788.6161	PC_36:1 ([M+H]+)	0.396	0.325
5.03	814.6317	PC_38:2 ([M+H]+)	0.397	0.338
4.70	744.5537	PE_36:2 ([M+H]+)	0.400	0.352
4.45	760.5849	PC_34:1 ([M+H]+)	0.404	0.380
4.29	716.5227	PE_34:2 ([M+H]+)	0.447	0.401
4.02	782.5691	PC_36:4 ([M+H]+)	0.533	0.408
4.07	714.5070	PE_34:3 ([M+H]+)	0.561	0.622
4.18	758.5695	PC_34:2 ([M+H]+)	0.564	0.504
3.62	778.5381	PC_36:6 ([M+H]+)	0.607	0.612
3.80	780.5537	PC_36:5 ([M+H]+)	0.611	0.541
4.11	740.5237	PE_36:4 ([M+H]+)	0.626	0.524
3.97	756.5535	PC_34:3 ([M+H]+)	0.651	0.713
6.23	871.5726	pheophytin a ([M+H]+)	0.839	0.833
3.99	549.4887	unknown	0.576	0.554