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. 2024 Sep 2;246:43–70. doi: 10.3897/phytokeys.246.126310

Table 1.

Percentage (mean ± SD) of each compound as part of the headspace of Ericainfundibuliformis. Compounds are grouped by major compound class (cf. Knudsen and Tollsten 1993) and sorted within class according to the Kovats Retention Index (KRI). CAS number is provided for compounds that could be identified. In case a compound could be identified without information of which the particular stereoisomer was present, no CAS number is provided. Compound names in cells with light grey shading were also found in E.cylindrica. Sample sizes of percentages are only given in case a compound was not found in all samples within a particular batch. Mass spectra of compounds for which the KRI is marked with an asterisk are provided in Suppl. material 1.

Compound name KRI CAS number Stetteynsberg day (n = 3) Stetteynsberg evening (n = 3) Agtertafelberg evening (n = 4)
Aliphatics
Aliphaticalcohols
(E)-Hex-3-en-1-ol 1364 928-97-2 1.57 ± 2.50 0.02 ± 0.02 (2) 1.46 ± 0.63
Oct-1-en-3-ol 1426 3391-86-4 0.02 ± 0.02 0.02 ± 0.02 (2) 0.67 ± 0.30
4-Hexen-3-ol 1754 4798-58-7 0.03 ± 0.02 (2) 0.04 ± 0.03 (2) 0.18 ± 0.13
Aliphaticaldehydes
(E)-Hex-2-enal 1213 6728-26-3 0.09 ± 0.10
(E)-4-Oxohex-2-enal 1568 20697-55-6 0.51 ± 0.83 0.65 ± 0.50
Aliphaticalkanes
Tetradecane 1400 629-59-4 0.06 ± 0.13 (1)
Pentadecane 1500 629-62-9 0.12 ± 0.24 (1)
Hexadecane 1600 544-76-3 0.14 ± 0.29 (1)
Heptadecane 1700 629-78-7 0.05 ± 0.11 (1)
Octadecane 1800 593-45-3 0.03 ± 0.05 (2)
Aliphaticesters
(E)-Hex-4-en-1-yl acetate 1302 72237-36-6 1.05 ± 0.77 0.95 ± 0.69
(E)-3-Hexen-1-yl butyrate 1445 53398-84-8 0.40 ± 0.58 0.39 ± 0.23
(Z)-3-hexenyl 2-methylbutyrate 1460 53398-85-9 0.03 ± 0.04 0.03 ± 0.01
(Z)-3-Hexenyl hexanoate 1638 31501-11-8 0.03 ± 0.02
Benzenoids
Benzaldehyde 1503 100-52-7 0.11 ± 0.04 3.20 ± 5.47 0.18 ± 0.09
Phenylethyl alcohol 1881 60-12-8 0.02 ± 0.00 0.19 ± 0.31 0.03 ± 0.01
Isoprenoids
Irregularterpene
6-Methyl-5-hepten-2-one 1322 110-93-0 0.10 ± 0.05 0.04 ± 0.07 (1) 0.96 ± 0.67
Monoterpenes
β-Myrcene 1163 123-35-3 1.13 ± 0.44 0.65 ± 0.57 (2) 0.95 ± 0.36
(Z)-Ocimene 1231 3338-55-4 5.36 ± 1.59 1.20 ± 1.05 (2) 3.79 ± 0.40
(E)-Ocimene 1251 3779-61-1 80.0 ± 5.02 89.1 ± 3.15 82.9 ± 2.06
2,6-Dimethylocta-2,4,6-triene stereoisomer 1 1367 0.39 ± 0.40 0.15 ± 0.07
2,6-Dimethylocta-2,4,6-triene stereoisomer 2 1384 0.47 ± 0.81 (1)
2,6-Dimethyl-1,3,5,7-octatetraene stereoisomer 1 1423 0.05 ± 0.06 0.09 ± 0.10 (2) 0.28 ± 0.18
2,6-Dimethyl-1,3,5,7-octatetraene stereoisomer 2 1435 0.35 ± 0.28 0.34 ± 0.38 (2) 1.58 ± 0.48
(Z)-Furan linalool oxide stereoisomer 1453 0.03 ± 0.01 0.01 ± 0.02 (1)
Myroxide stereoisomer 1469 0.06 ± 0.05 (2) 0.04 ± 0.03 (2) 0.10 ± 0.04
Linalool 1520 78-70-6 6.49 ± 5.66 4.01 ± 2.81
Cinerone stereoisomer 1542* 0.04 ± 0.03 (2) tr (1) 0.12 ± 0.09
Pinocarvone 1561 30460-92-5 0.03 ± 0.03 (2) 0.07 ± 0.10 (2)
α-Terpineol 1672 98-55-5 0.02 ± 0.01
Pinocarveol 1685 5947-36-4 0.06 ± 0.01 0.01 ± 0.01 (1) 0.07 ± 0.04
p-Mentha-1,5-dien-8-ol 1695 1686-20-0 tr (2) 0.01 ± 0.01 (2) 0.02 ± 0.02 (3)
2,6-dimethylocta-3,5,7-trien-2-ol stereoisomer 1 1770 tr (2) 0.03 ± 0.02 (2) 0.08 ± 0.07 (3)
2,6-dimethylocta-3,5,7-trien-2-ol stereoisomer 2 1787 0.11 ± 0.10 (2) 0.22 ± 0.19 (2) 0.59 ± 0.28
2,6-Dimethyl-3,7-octadiene-2,6-diol 1900* 13741-21-4 0.02 ± 0.01 (2)
Miscellaneous compounds
3-Methyl-2-(2-methyl-2-butenyl)-furan 1389 15186-51-3 0.10 ± 0.06 0.03 ± 0.03 (2) 0.11 ± 0.04
5,5-dimethyl-2(rH)-furanone 1583 20019-64-1 0.03 ± 0.02 (2) 0.02 ± 0.02 (2) 0.01 ± 0.03 (1)
5-Methyl-5-vinyldihydrofuran-2(3H)-one 1648 1073-11-6 0.01 ± 0.01 (2) 0.01 ± 0.01 (1)
Nitrogen-containing compounds
3-Methylpyrazole 1654 1453-58-3 tr (2) 0.02 ± 0.01 (2) 0.16 ± 0.08
Benzyl isocyanide 1657 10340-91-7 0.08 ± 0.03 0.02 ± 0.02 (2) 0.01 ± 0.00
Unknown compounds
m/z: 53,81,82,54,50,55 1121* 0.46 ± 0.17 0.18 ± 0.31 (1) 0.32 ± 0.16
m/z: 91,96,119,67,95,41 1358* 0.07 ± 0.02 0.06 ± 0.05 (2) 0.36 ± 0.20
m/z: 73,56,59,86,72,55 1464* 0.05 ± 0.04 0.03 ± 0.04 (2)
m/z: 91,107,43,92,65,79 1490* 0.03 ± 0.03 (2) 0.01 ± 0.01 (2) 0.13 ± 0.11
m/z: 55,43,32,83,41,42 1501 0.02 ± 0.02 (3)
m/z: 95,93,123,67,91,81 1511* 0.03 ± 0.02 (2) 0.01 ± 0.01 (1) 0.06 ± 0.01
m/z: 57,85,86,43,55,72 1524* 0.28 ± 0.22
m/z: 95,93,79,41,55,69 1525 0.06 ± 0.00
m/z: 82,83,55,41,53,39 1546 0.01 ± 0.01 (2)
m/z: 43,71,57,70,41,55 1551 0.01 ± 0.02 (1)
m/z: 108,82,79,42,80,81 1650* 0.03 ± 0.01
m/z: 57,71,43,41,55,85 1666 0.01 ± 0.03 (1)
m/z: 60,91,73,107,79,150 1700* 0.03 ± 0.00 0.01 ± 0.01 (2) 0.09 ± 0.05
m/z: 83,55,84,57,82,112 1730 0.05 ± 0.10 (1)
m/z: 57,43,71,55,84,41 1742 0.01 ± 0.03 (1)
m/z: 82,67,71,43,81,79 1771* 0.04 ± 0.01 tr (1) 0.02 ± 0.05 (1)
m/z: 95,54,43,59,81,67 1844* 0.01 ± 0.02 (1) tr (2) 0.04 ± 0.02
m/z: 95,43,55,59,81,67 1848* tr (1) tr (2) 0.02 ± 0.00
m/z: 43,95,110,59,81,71 1890* 0.04 ± 0.01
m/z: 57, 85, 43, 41, 55, 39 1925* 0.18 ± 0.20 0.01 ± 0.02 (2) 0.51 ± 0.46 (3)
m/z: 153,109,83,69,43,32 1940* tr (2)
m/z: 71,43,41,39,53,69 1941* tr (2) tr (2) 0.01 ± 0.01 (3)
m/z: 59,71,43,53,55,113 1946* 0.01 ± 0.00 (2) 0.03 ± 0.02
m/z: 59,42,71,55,41,113 1951* tr (1) 0.06 ± 0.05 (3)
m/z: 97,72,43,68,95,79 1964* 0.07 ± 0.07 (2) 0.02 ± 0.02 (2) 0.11 ± 0.04
m/z: 43,125,83,107,81,55 1971* 0.01 ± 0.02 (3)
m/z: 43,57,69,41,55,91 1972 tr (1)
m/z: 97,67,41,72,68,43 1987* 0.01 ± 0.01 (2) 0.01 ± 0.01 (2) 0.06 ± 0.03
m/z: 59,43,71,113,73,83 1993* 0.04 ± 0.02
m/z: 71,59,43,85,113,73 2004* 0.02 ± 0.01
m/z: 79,91,150,39,107,32 2030* 0.02 ± 0.00 0.01 ± 0.01 (2) 0.04 ± 0.01
m/z: 58,43,71,59,55,445 2104 tr (1)
m/z: 43,111,32,41,91,93 2124* tr (1) 0.01 ± 0.00 (2) 0.16 ± 0.13
m/z: 79,108,77,39,80,82 2127* tr (1) tr (2) 0.02 ± 0.00
m/z: 43,95,59,41,55,79 2134* tr (1) tr (2) tr (1)
m/z: 121,149,138,194,93,65 2137 tr (1)
m/z: 43,95,32,55,97,59 2141* tr (1) 0.01 ± 0.01 (2)
m/z: 95,43,97,41,83,59 2150* tr (1) 0.02 ± 0.02 (2) 0.02 ± 0.01
m/z: 109,79,81,152,67,121 2154* tr (1) 0.01 ± 0.01 (2) 0.03 ± 0.02
m/z: 74,87,43,41,55,75 2196 tr (1)
m/z: 88,43,100,41,54,30 2236 tr (1)
m/z: 69,93,41,81,79,91 2257 0.01 ± 0.01 (2)
Aliphaticalcohols 1.63 ± 2.50 0.09 ± 0.08 2.32 ± 0.96
Aliphaticaldehydes 0.51 ± 0.83 0 0.75 ± 0.59
Aliphaticalkanes 0 0 0.42 ± 0.83
Aliphaticesters 1.53 ± 1.41 0 1.39 ± 0.91
Benzenoid compounds 0.14 ± 0.04 3.40 ± 5.79 0.22 ± 0.10
Irregularterpene 0.10 ± 0.05 0.04 ± 0.07 0.96 ± 0.67
Monoterpenes 93.55 ± 5.46 95.19 ± 4.57 89.77 ± 1.97
Miscellaneous compounds 0.15 ± 0.03 0.06 ± 0.06 0.13 ± 0.05
nitrogen-containing compounds 0.08 ± 0.04 0.04 ± 0.03 0.17 ± 0.07
Unknown compounds 1.13 ± 0.33 0.49 ± 0.50 2.87 ± 0.75