Population Variability of Nonacosan-10-ol and n-Alkanes in Needle Cuticular Waxes of Macedonian Pine (Pinus peuce Griseb.)
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Bojović, Srđan R.
Marin, Petar D.
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This is the first report on population variability of nonacosan-10-ol and n-alkanes in needle epicuticular waxes of Macedonian pine (Pinus peuce Griseb.) Hexane extracts of needle samples, originating from two natural populations in Montenegro (Zeletin and Sjekirica) and from one population in Serbia (Mokra Gora) were analyzed by gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS). The amount of nonacosan-10-ol varied individually from 41.3 to 72.31% (average 55.9%), with the Sjekirica population being statistically divergent (64.4% on average). The results showed n-alkanes in epicuticular waxes ranging from C18 to C33. The most abundant alkanes were C29, C25, C27, and C23 (15.5, 11.1, 10.6, and 10.5% on average, resp.). The carbon preference index of Pinus peuce ranged from 1.0 to 4.3 (1.9 on average). Average chain length ranged from 18.4 to 27.7 (average 25.7). A high level of inidividual quantitative variation in all of these hydrocarbon parameters was also det...ected. These results were compared with published data on other species from the Pinus genus.
Кључне речи:Pinus peuce / Nonacosan-10-ol / Needle cuticular wax / Essential oils / Chemotaxonomy
Извор:Chemistry and Biodiversity, 2012, 9, 6, 1155-1165
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