Table 2.

Fold changes of terpenoid metabolites in Masson pine seedlings under low light, drought, and their combined stresses compared to control. CK: control; LL: low light; DR: drought; and DL (DR + LL): the combined stress of drought and low light. Every treatment included three individual repeats, and 20 leaves were collected from each.

#ID	Metabolites	LL vs.CK	p-Value	DR vs.CK	p-Value	DL vs.CK	p-Value
	Monoterpenoids and derivatives
656		−1.0	0.09	–	–	–	–
974	loliolide	−1.5	0.10	–	–	–	–
665	Safrole	−0.8	0.02	–	–	–	–
	Diterpenoids and derivatives
1442	13-Acetyl-9-Dihydrobaccatin III	−1.4	0.04	−0.7	0.10	−1.2	0.04
631	ent-15-Oxo-16-kauren-19-oic acid	−1.4	0.04	−0.6	0.08	–	–
	Sesquiterpenoids and derivatives
338	3,15-Epoxy-6-caryophyllene	−1.1	0.10	–	–	–	–
525	gamma-Eudesmol rhamnoside	−2.7	0.01	–	–	–	–
640	Dihydroisoalantolactone	−1.1	0.04	−0.8	0.08	−0.8	0.08
442	Dihydronootkatone	−1.1	0.03	−0.9	0.06	−1.2	0.03
94	Isocurcumenol	–	–	−1.5	0.01	−0.8	0.07
1417	(−)-Obtusadiene	–	–	−0.5	0.02	–	–
1650	Taraxacolide 1-O-β-D-glucopyranoside	–	–	0.6	0.05	–	–
91	(+)-4,11-Eudesmadien-3-one	–	–	0.7	0.03	–	–
86	β-Atlantone	−0.6	0.06	−0.9	0.03	–	–
219	β-Sinensal	−0.6	0.05	−0.8	0.03	–	–
919	Citroside A	−1.5	0.05	–	–	–	–
612	Cacalol	–	–	–	–	1.1	0.07
	Triterpenoids and derivatives
976	Prosapogenin	–	–	–	–	−0.7	0.07
1205	Ganoderic acid Mj	–	–	0.5	0.03	–	–
1445	Pristimerol	0.3	0.03	0.6	0.01	–	–
411	Betavulgaroside II	−1.8	0.08	–	–	–	–
1372	25-Acetyl-6,7-didehydrofevicordin F 3-glucoside	−1.6	0.01	–	–	–	–
584	Lucidenic acid M	−1.4	0.06	–	–	–	–
1667	Notoginsenoside T2	−0.8	0.03	–	–	–	–
1135	Periandrin V	−2.6	0.00	–	–	–	–
821	Dukunolide B	0.6	0.04	0.8	0.02	–	–
	Tetraterpenoids and derivatives
1194	3-Hydroxy-beta-zeacarotene	−2.4	0.08	–	–	–	–
1519	Cucurbitaxanthin A	−0.9	0.10	–	–	–	–
1609	3’-Hydroxy-6,6-caroten-3-one	–	–	–	–	0.4	0.02