Bianchini Ange, Santoni François, Paolini Julien, Bernardini Antoine-François, Mouillot David, Costa Jean
CNRS UMR-6134 SPE, Université de Corse, Laboratoire Chimie des Produits Naturels, Corti.
Chem Biodivers. 2009 Jul;6(7):1014-33. doi: 10.1002/cbdv.200800328.
Composition of Helichrysum italicum subsp. italicum essential oil showed chemical variability according to vegetation cycle, environment, and geographic origins. In the present work, 48 individuals of this plant at different development stages and the corresponding root soils were sampled: i) 28 volatile components were identified and measured in essential oil by using GC and GC/MS; ii) ten elements from plants and soils have been estimated using colorimetry in continuous flux, flame atomic absorption spectrometry, or emission spectrometry (FAAS/FAES); iii) texture and acidity (real and potential) of soil samples were also reported. Relationships between the essential-oil composition, the inorganic plant composition, and the soil characteristics (inorganic composition, texture, and acidity) have been established using multivariate analysis such as Principal Component Analysis (PCA) and partial Redundancy Analysis (RDA). This study demonstrates a high level of intraspecific differences in oil composition due to environmental factors and, more particularly, soil characteristics.
意大利蜡菊亚种意大利蜡菊精油的成分根据植被周期、环境和地理来源呈现出化学变异性。在本研究中，采集了48株处于不同发育阶段的该植物个体及其相应的根际土壤：i) 通过气相色谱（GC）和气相色谱-质谱联用（GC/MS）鉴定并测定了精油中的28种挥发性成分；ii) 使用连续流动比色法、火焰原子吸收光谱法或发射光谱法（FAAS/FAES）对植物和土壤中的十种元素进行了估算；iii) 还报告了土壤样品的质地和酸度（实际酸度和潜在酸度）。利用主成分分析（PCA）和偏冗余分析（RDA）等多变量分析方法，建立了精油成分、植物无机成分与土壤特性（无机成分、质地和酸度）之间的关系。本研究表明，由于环境因素，尤其是土壤特性，该植物种内精油成分存在高度差异。
