Dodoš Tanja, Janković Smiljana, Marin Petar D, Rajčević Nemanja
Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia.
Plants (Basel). 2021 Mar 9;10(3):511. doi: 10.3390/plants10030511.
The essential oil (EO) composition of plants is highly variable. Recent studies suggest that there is an even difference in the EO composition from different plant organs within the same plant. This study aims to examine the chemical profile of EOs and the micromorphological characteristics of different organs of three species. The relationship between the number of glandular trichomes and EOs profile and relative yield is also investigated. Individuals from five populations were visualized using a scanning electron microscope, while EOs of leaves, calyces, corollas, and whole aerial parts were isolated using simultaneous distillation and extraction and analyzed using gas chromatography/mass spectrometry. Three types of glandular trichomes were detected. Peltate trichomes were present on all plant organs of studied species, while two types of capitate trichomes show different organ and species preferences. The EOs profiles differed across the plant parts, but showed a species specific composition. Univariate and multivariate statistics were used to show a correlation between the peltate trichomes and EO yield, and chemophenetic significance of EO profiles.
植物精油(EO)的成分高度可变。最近的研究表明,同一植物不同器官的精油成分存在差异。本研究旨在研究三种植物不同器官的精油化学特征和微观形态特征。同时还研究了腺毛数量与精油成分及相对产量之间的关系。使用扫描电子显微镜对来自五个种群的个体进行观察,同时采用同时蒸馏萃取法分离叶片、花萼、花冠和地上部分的精油,并通过气相色谱/质谱联用仪进行分析。共检测到三种类型的腺毛。盾状腺毛存在于所有研究物种的植物器官上,而两种头状腺毛则表现出不同的器官和物种偏好。不同植物部位的精油成分不同,但呈现出物种特异性组成。采用单变量和多变量统计方法来显示盾状腺毛与精油产量之间的相关性,以及精油成分的化学分类学意义。