Jovanović Snežana Č, Zlatković Bojan K, Stojanović Gordana S
Department of Chemistry, Faculty of Science and Mathematics, University of Niš, Višegradska Street No. 33, RS-18000 Niš
Department of Biology and Ecology, Faculty of Science and Mathematics, University of Niš, Višegradska Street No. 33, RS-18000 Niš, (phone: +381-18533014; fax: +381-18533015).
Chem Biodivers. 2015 May;12(5):767-80. doi: 10.1002/cbdv.201400251.
For the first time, the n-alkane distribution and variability of the epicuticular waxes within 22 Sedum taxa was reported with focus on the chemotaxonomy of native Sedum representatives from the central Balkan Peninsula, compared to their relations with four other species of the Crassulaceae family. By GC/MS and GC-FID identification and quantification, it was established that n-alkanes C27 , C29 , C31 , C33 , and C35 were the dominant constituents of the examined epicuticular wax samples. Applying multivariate statistical analyses including agglomerative hierarchical clustering (AHC) and principal component analysis (PCA), the relation according to the n-alkane composition between the examined samples was established. It was shown that the n-alkane variability of the central Balkan Sedum species was considerable and that n-alkanes might not be very reliable taxonomic markers for these species.
首次报道了22种景天属植物表皮蜡质的正构烷烃分布及变异性，重点研究了巴尔干半岛中部原生景天属植物的化学分类，并将其与景天科其他四个物种的关系进行了比较。通过气相色谱/质谱联用仪（GC/MS）和气相色谱-氢火焰离子化检测器（GC-FID）进行鉴定和定量分析，确定正构烷烃C27、C29、C31、C33和C35是所检测表皮蜡质样品的主要成分。应用包括凝聚层次聚类分析（AHC）和主成分分析（PCA）在内的多元统计分析方法，确定了所检测样品之间基于正构烷烃组成的关系。结果表明，巴尔干半岛中部景天属物种的正构烷烃变异性相当大，正构烷烃可能不是这些物种非常可靠的分类标记。
