Table 1. The 41 metabolites identified by GC-MS at 28 d heat stress and there respective retention times (RT).

	Metabolite	RT
1	Acetic acid	9.33
2	Aconitic acid	26.36
3	Citric acid	27.84
4	Galacturonic acid	46.26
5	Glucaric acid	27.78
6	Gluconic acid	31.66
7	Glyceric Acid	16.28
8	Malic acid	20.37
9	Oxalic acid	11.06
10	Phosphoric acid	12.07
11	Pyruvic acid	8.62
12	Arabinofuranose	26.61
13	Cellobiose	43.45
14	Fructose	28.91
15	Galactinol	46.99
16	Galactose	29.27
17	Glucose	29.41
18	Glycerol	14.79
19	Gulose	34.87
20	Lactose	34.36
21	L-Threitol	26.15
22	Lyxose	24.79
23	Maltose	40.17
24	Mannobiose	42.54
25	Melibiose	48.91
26	Myo-inositol	33.09
27	Sorbitol	30.05
28	Sorbopyranose	27.71
29	Sucrose	42.22
30	Trehalose	43.69
31	Xylulose	22.44
32	Alanine	10.05
33	Aspartic acid	21.13
34	GABA	21.32
35	Glutamic acid	23.50
36	Glycine	10.57
37	Isoleucine	15.28
38	Proline	15.35
39	Serine	17.08
40	Threonine	17.75
41	Valine	13.14