Table 1.

Metabolites identified by GC-MS in response to different CO₂ concentrations and temperatures in leaves of bermudagrass at 28 days of treatments.

Compound	RT	Derivative	m/z	Compound	RT	Derivative	m/z
Pyruvic acid	8.8	O-TMSa,MEOX1b	174	Erythrose	30.306	O-3TMS,MEOX1	205
Lactic acid	9.091	O-2TMS	147	Tagatose	31.15	O-5TMS,MEOX1	103
Propenoic acid	9.819	O-2TMS	147	Pimelic acid	32.978	O-3TMS	300
Alanine	10.24	N,O-TMS	116	Myo-Inositol	33.289	O-6TMS	305
Oxalic acid	11.267	O-2TMS	147	Allose	33.641	O-5TMS,MEOX1	319
Valine	13.331	N,O-TMS	144	Glucopyranose	33.802	O-6TMS	389
Glycerol	14.977	O-2TMS	205	Cellobiose	35.218	O-8TMS	204
Isoleucine	15.47	O-2TMS	117	Gulose	35.932	O-5TMS	204
Proline	15.547	N,O-TMS	142	Maltose	40.354	O-8TMS	204
Glycine	15.785	N,N,O-TMS	174	Galacturonic acid	40.611	O-5TMS	204
Succinic acid	16.059	O-2TMS	147	Mannobiose	40.972	O-8TMS	204
Glyceric Acid	16.4167	O-3TMS	147	Sucrose	42.414	O-8TMS	361
Serine	17.274	N,O,O-TMS	204	Galactinol	47.19	O-9TMS	204
Threonine	17.929	N,O,O-TMS	218	Gentiobiose	49.095	O-8TMS	204
Malic acid	20.565	O-3TMS	147	Psicose	26.779	O-5TMS,MEOX1	103
5-Oxoproline	21.276	O-2TMS	156	Mannopyranose	36.968	O-4TMS	204
Aspartic acid	21.328	O-3TMS	232	Fucose	37.747	O-4TMS	204
GABA	21.528	N,N,O-TMS	174	Glucuronic acid	31.323	O-3TMS	317
Lysine	21.611	N,N,O-TMS	174	Turanose	31.491	O-8TMS	361
Threonic acid	22.286	O-4TMS	292	Gluconic acid	31.59	O-6TMS	333
α-Ketoglutaric acid	22.666	O-2TMS,MEOX1	198	Palmitic acid	32.566	O-TMS	313
Glutamic acid	23.699	N,O,O-TMS	246	Oxaloacetic acid	32.701	O-3TMS	147
Lyxose	24.649	O-4TMS	103	Phosphoric acid	35.269	O-5TMS	357
Mucic acid	27.687	O-6TMS	333
Shikimic acid	27.912	O-4TMS	204
Citric acid	28.12	O-4TMS	273
Fructose	29.109	O-5TMS,MEOX1	307
Galactose	29.47	O-5TMS,MEOX1	319
Glucose	29.611	O-5TMS,MEOX1	319
Mannitol	30.236	O-6TMS	319

RT, retention time; m/z, mass to charge ratio; ^aTrimethylsilyl derivative(s), ^bMethoxime derivative(s).