Table 2 Relative and total amounts of n-alkanes (straight chain saturated hydrocarbons) and n-alkenes (straight chain unsaturated hydrocarbons) in the investigated orchid species. Compounds are ordered in retention times. Total amounts are given in ng per single labellum
| Â | Orchis italica | Orchis provincialis | Orchis mascula | Orchis quadripunct. | Orchis anthropoph. | Serapias lingua | Serapias cordigera | Serapias parviflora | Ophrys sphegodes | Anacamptis papilionacea |
|---|---|---|---|---|---|---|---|---|---|---|
Alkane | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Heneicosane (C21) | 1.71 | 0.70 | 0.66 | 1.19 | 1.58 | 1.20 | 14.58 | 0.72 | 5.27 | 2.04 |
Docosane (C22) | 0.79 | 0.00 | 0.00 | 0.36 | 0.75 | 0.29 | 1.19 | 0.00 | 1.76 | 0.20 |
Tricosane (C23) | 37.05 | 0.85 | 5.53 | 14.86 | 10.82 | 6.13 | 8.01 | 1.47 | 28.41 | 8.35 |
Tetracosane (C24) | 1.98 | 0.47 | 1.72 | 2.21 | 0.92 | 1.63 | 0.58 | 1.38 | 2.51 | 0.49 |
Pentacosane (C25) | 16.88 | 12.07 | 39.38 | 29.62 | 24.47 | 14.28 | 2.72 | 16.84 | 11.08 | 15.79 |
Hexacosane (C26) | 1.64 | 5.41 | 2.73 | 2.63 | 1.25 | 2.20 | 0.26 | 3.54 | 0.72 | 0.63 |
Heptacosane (C27) | 20.65 | 46.00 | 35.32 | 32.51 | 26.92 | 15.00 | 2.62 | 33.73 | 5.19 | 22.07 |
Octacosane (C28) | 1.38 | 6.54 | 1.40 | 2.66 | 0.83 | 0.90 | 0.35 | 3.86 | 0.42 | 1.02 |
Nonacosane (C29) | 8.14 | 27.97 | 12.42 | 9.21 | 8.00 | 3.76 | 1.96 | 31.73 | 2.12 | 12.89 |
Sum (%) | 90.22 | 100.00 | 99.17 | 95.26 | 75.54 | 45.38 | 32.27 | 93.29 | 57.49 | 63.49 |
Total amount (ng) | 266.78 | 123.80 | 206.31 | 119.22 | 118.68 | 834.06 | 1210.49 | 147.82 | 513.69 | 418.86 |
Alkene | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
7-Heneicosene | 0.00 | 0.00 | 0.46 | 0.00 | 0.00 | 0.54 | 28.43 | 0.00 | 0.13 | 0.35 |
11-Tricosene | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.16 |
9-Tricosene | 0.00 | 0.00 | 0.00 | 0.00 | 1.26 | 1.59 | 2.41 | 0.00 | 1.15 | 0.63 |
7-Tricosene | 0.60 | 0.00 | 0.00 | 0.00 | 2.04 | 2.89 | 29.03 | 0.00 | 0.90 | 1.02 |
11-Pentacosene | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 4.43 | 0.45 | 0.00 | 0.00 | 3.02 |
9-Pentacosene | 0.42 | 0.00 | 0.00 | 0.00 | 8.50 | 0.00 | 0.83 | 0.00 | 13.06 | 0.34 |
7-Pentacosene | 0.80 | 0.00 | 0.00 | 0.00 | 1.38 | 13.07 | 5.31 | 0.00 | 2.11 | 0.42 |
5-Pentacosene | 5.44 | 0.00 | 0.00 | 0.51 | 1.11 | 0.99 | 0.67 | 0.00 | 0.44 | 10.71 |
11-Heptacosene | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.38 | 0.14 | 0.00 | 6.58 | 8.89 |
9-Heptacosene | 0.78 | 0.00 | 0.19 | 1.62 | 7.68 | 6.17 | 0.00 | 0.56 | 10.00 | 0.86 |
7-Heptacosene | 0.64 | 0.00 | 0.00 | 0.00 | 1.08 | 9.02 | 0.30 | 1.11 | 1.15 | 0.76 |
5-Heptacosene | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
11-Nonacosene | 0.15 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 3.83 | 7.95 |
9-Nonacosene | 0.46 | 0.00 | 0.19 | 1.17 | 1.41 | 8.18 | 0.10 | 3.31 | 3.18 | 0.85 |
7-Nonacosene | 0.50 | 0.00 | 0.00 | 1.44 | 0.00 | 7.37 | 0.07 | 1.74 | 0.00 | 0.55 |
5-Nonacosene | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
Sum (%) | 9.78 | 0.00 | 0.83 | 4.74 | 24.46 | 54.62 | 67.73 | 6.71 | 42.51 | 36.51 |
Total amount (ng) | 28.93 | 0.00 | 1.73 | 5.94 | 38.44 | 1003.87 | 2540.77 | 10.64 | 379.86 | 240.84 |
| Â | Anacamptis morio | Nigritella rhellicani | Gymnadenia conopsea | Gymnadenia odoratissima | Dactylorhiza maculata | Himantogl. hircinum | Platanthera bifolia | Neotinea ustuata | Neotinea lactea | Â |
Alkane | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Heneicosane (C21) | 0.21 | 1.98 | 0.00 | 10.54 | 0.00 | 0.45 | 0.00 | 0.55 | 0.00 | Â |
Docosane (C22) | 0.15 | 0.00 | 0.00 | 1.61 | 0.00 | 0.15 | 0.00 | 0.35 | 0.00 | Â |
Tricosane (C23) | 10.88 | 13.21 | 6.42 | 39.17 | 4.03 | 2.40 | 1.46 | 10.34 | 5.67 | Â |
Tetracosane (C24) | 3.43 | 2.33 | 0.00 | 1.70 | 0.00 | 0.93 | 1.06 | 1.45 | 0.00 | Â |
Pentacosane (C25) | 38.64 | 15.57 | 9.35 | 14.41 | 5.35 | 33.99 | 18.14 | 10.52 | 14.06 | Â |
Hexacosane (C26) | 3.17 | 0.00 | 0.00 | 1.39 | 0.00 | 2.54 | 2.95 | 1.59 | 6.11 | Â |
Heptacosane (C27) | 28.30 | 13.44 | 0.00 | 0.00 | 4.78 | 41.16 | 31.79 | 15.13 | 39.84 | Â |
Octacosane (C28) | 1.89 | 0.00 | 3.38 | 0.00 | 2.97 | 1.29 | 6.11 | 1.35 | 9.75 | Â |
Nonacosane (C29) | 9.91 | 4.53 | 25.44 | 0.00 | 33.56 | 13.23 | 23.23 | 7.26 | 24.56 | Â |
Sum (%) | 96.58 | 51.06 | 44.59 | 68.82 | 50.69 | 96.14 | 84.74 | 48.54 | 100.00 | Â |
Total amount (ng) | 299.09 | 25.20 | 11.80 | 30.87 | 12.89 | 388.24 | 15.96 | 43.35 | 8.87 | Â |
Alkene | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
7-Heneicosene | 0.98 | 0.00 | 0.00 | 0.00 | 0.00 | 0.42 | 0.00 | 0.00 | 0.00 | Â |
11-Tricosene | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 42.69 | 0.00 | Â |
9-Tricosene | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.09 | 0.00 | 0.00 | 0.00 | Â |
7-Tricosene | 1.44 | 0.00 | 0.00 | 0.00 | 0.00 | 0.22 | 0.00 | 0.47 | 0.00 | Â |
11-Pentacosene | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 5.42 | 0.00 | Â |
9-Pentacosene | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.31 | 0.00 | 0.00 | 0.00 | Â |
7-Pentacosene | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.65 | 0.00 | 0.00 | 0.00 | Â |
5-Pentacosene | 1.00 | 4.15 | 17.40 | 12.32 | 13.85 | 0.00 | 0.00 | 0.00 | 0.00 | Â |
11-Heptacosene | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | Â |
9-Heptacosene | 0.00 | 5.64 | 0.00 | 0.00 | 0.00 | 0.52 | 1.20 | 0.00 | 0.00 | Â |
7-Heptacosene | 0.00 | 26.08 | 0.00 | 0.00 | 0.00 | 0.88 | 0.00 | 0.00 | 0.00 | Â |
5-Heptacosene | 0.00 | 0.00 | 33.35 | 15.69 | 35.46 | 0.00 | 0.00 | 0.00 | 0.00 | Â |
11-Nonacosene | 0.00 | 0.00 | 4.65 | 0.00 | 0.00 | 0.00 | 0.00 | 0.92 | 0.00 | Â |
9-Nonacosene | 0.00 | 6.54 | 0.00 | 0.00 | 0.00 | 0.33 | 9.63 | 0.00 | 0.00 | Â |
7-Nonacosene | 0.00 | 6.53 | 0.00 | 0.00 | 0.00 | 0.43 | 4.43 | 1.97 | 0.00 | Â |
5-Nonacosene | 0.00 | 0.00 | 0.00 | 3.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | Â |
Sum (%) | 3.42 | 48.94 | 55.41 | 31.18 | 49.31 | 3.86 | 15.26 | 51.46 | 0.00 | Â |
Total amount (ng) | 10.60 | 24.15 | 14.67 | 13.99 | 12.54 | 15.58 | 2.87 | 45.96 | 0.00 | Â |