. 2018 Jan 23;19(2):249. doi: 10.3390/ijms19020249

Table 1.

Chemical composition of cuticular waxes detected on wheat leaves and stems.

#	IUPAC Name (Synonym)	Retention Index	ANOVA p-Value ^†		Association	Reference
#	IUPAC Name (Synonym)	Retention Index	Tissue	Cultivar	Association	Reference
Alkanes
1	Eicosane	2000	^‡	0.6	Plant–insect int.	[10]
2	Tricosane	2300	0.13	^‡	Chemotaxonomy	[24]
3	4-Methyldocosane	2334	0.33	^‡
4	6-Methyldocosane	2336	^‡	^‡
5	Pentacosane	2500	^‡	0.77	Chemotaxonomy	[24]
6	Hexacosane	2600	^‡	0.17	Chemotaxonomy	[24]
7	5-Methylpentacosane	2641	^‡	0.63
8	7-Methylpentacosane	2645	^‡	0.63
9	Heptacosane	2700	^‡	0.56	Chemotaxonomy	[24]
10	4-Methylhexacosane	2727	^‡	0.4
11	12-Methyloctacosane	2912	^‡	^‡
12	14-Methyloctacosane	2915	^‡	^‡
13	Triacontane	3000	^‡	^‡	Chemotaxonomy	[24]
14	Hentriacontane	3100	0.12	0.05	Plant–insect int.	[10]
15	7-Methylhentriacontane	3111	^‡	^‡
16	13-Methylhentriacontane	3124	^‡	^‡
17	Tetratriacontane	3400	0.27	^‡	Chemotaxonomy	[24]
18	Pentatriacontane	3500	0.61	0.16	Chemotaxonomy	[24]
19	Tetracontane	4000	^‡	^‡	Plant–insect int.	[36]
20	Dotetracontane	4200	^‡	^‡
Fatty acids
21	Heptanoic acid (enanthic acid)	1044	0.25	0.3
22	Tetradecanoic acid (myristic acid)	1499	^‡	0.68	Antibiotic	[37]
23	Hexadecenoic acid	1602	0.51	0.57
24	Hexadecanoic acid (palmitic acid)	1623	^‡	0.9	Plant–insect int.	[10]
25	(9Z,12Z,15Z)-Octadeca-9,12,15-trienoic acid (α-linolenic acid)	1755	^‡	0.13	Oil production	[38]
26	Octadecanoic acid (stearic acid)	1765	0.25	0.77	Plant–insect int.	[39]
27	10-Methylheptadecanoic acid	1768	0.12	0.61
28	Nonadecanoic acid	1825	0.67	0.3	Plant–insect int.	[40]
29	Eicosanoic acid (arachidic acid)	1911	^‡	0.52
30	Docosanoic acid (behenic acid)	2103	^‡	0.05	Oil production	[41]
31	Tricosanoic acid	2166	^‡	0.77
32	Tetracosanoic acid (lignoceric acid)	2246	^‡	0.09	Major wax precursor	[42]
33	Hexacosanoic acid (cerotic acid)	2404	^‡	0.06	Allelopathy	[43]
34	Heptacosanoic acid	2497	0.07	0.17
35	Octacosanoic acid (montanic acid)	2563	^‡	0.46
36	25-Methylheptacosanoic acid	2569	0.07	0.17
37	Nonacosanoic acid	2647	0.61	0.25
38	23-Triacontenoic acid	2728	^‡	0.54
39	12-Methylnonacosanoic acid	2731	^‡	0.77
40	Triacontanoic acid (melissic acid)	2741	^‡	0.32
41	Hentriacontanoic acid	2796	^‡	0.32
42	Tetratriacontanoic acid (geddic acid)	3037	^‡	^‡	Plant–insect int.	[18]
Ketones
43	Nonane-4,6-dione	1124	^‡	0.33
44	Nonacosane-12,14-dione	2689	^‡	0.41	Major leaf wax	[44]
45	Triacontane-12,14-dione	2698	^‡	0.21
46	Hentriacontane-14,16-dione	2735	^‡	0.39	Glaucousness	[45]
47	Tritriacontan-3-one	2839	0.93	^‡
48	Pentatriacontan-2-one	2881	^‡	0.54
Primary alcohols
49	Docosan-1-ol (behenyl alcohol)	2044	^‡	^‡
50	Tricosan-1-ol	2112	0.79	^‡
51	Hexacosan-1-ol	2325	^‡	^‡	Plant–insect int.	[10]
52	Heptacosan-1-ol	2404	0.9	^‡
53	Octacosan-1-ol	2467	^‡	0.77	Plant–insect int.	[10]
54	6-Methylheptacosan-1-ol	2498	^‡	^‡
55	Triacontan-1-ol (melissyl alcohol)	2668	^‡	0.63
56	Hentriacontan-1-ol	2703	^‡	0.25
57	22-Methylhentriacontan-1-ol	2780	^‡	0.41
58	Tritriacontan-1-ol	2855	^‡	^‡

^† Each p-value was calculated using one-way ANOVA (factors of cultivar and tissue) and adjusted by a Benjamini–Hochberg correction. The Association column refers to biological function with which metabolites are associated. Abbreviations/Notations: # = compound ID; ^‡ = p < 0.05; int. = interaction.