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Inter-Population Variability of Terpenoid Composition in Leaves of Pistacia lentiscus L. from Algeria: A Chemoecological Approach

机译:阿尔及利亚黄连木黄连木叶片中萜类成分的种群间变异:化学生态学方法

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摘要

Three different altitudes were selected to study the variability of terpenoid composition from leaves of female plants of Pistacia lentiscus L. throughout the elevation gradient. GC-MS analyses showed that terpenoid contents change with altitude. Forty nine compounds were identified with a high interpopulation variability for low- and midaltitude sites that also exhibited the same major components when data were expressed on dry weight basis. However, Two-Way-ANOVA followed by Tukey’s post hoc test showed that monoterpene hydrocarbons increased with elevation, giving values of 21.7, 37.5 and 221.5 µg g−1 dw for low- mid- and highlands, respectively. On the other hand, applying P.C.A. with data expressed in percentage of the chromatogram of the volatile extract led to the identification of three chemotypes associated with altitudinal levels. In highlands (Group I), the major compounds were β-caryophyllene (12%), δ-cadinene (9.3%) and α-pinene (6.3%) while in midlands (Group II), β-caryophyllene (11.5%), δ-cadinene (8.6%) and caryophyllene oxide (6.8%) were the main components. In lowlands (Group III) δ-cadinene (10.9%), cubebol (10.5%) and β-bisabolene (7.7%) were chiefly present. Hence, the involvement of genetic factors, temperature and drought in the chemical polymorphism of P. lentiscus associated with elevation is discussed in this report.
机译:选择了三种不同的海拔高度,研究了整个海拔梯度上黄连木雌性植物叶片中萜类化合物组成的变化。 GC-MS分析表明,萜类化合物含量随海拔变化而变化。在低海拔和中海拔地区,鉴定出具有高种群间变异性的49种化合物,当以干重为基础表示数据时,这些化合物也表现出相同的主要成分。但是,双向韦诺法分析和随后的Tukey事后测试表明,单萜碳氢化合物随海拔升高而增加,低,中部和高地的值分别为21.7、37.5和221.5 µg g -1 dw。 。另一方面,申请P.C.A.用挥发性提取物色谱图的百分比表示的数据可以鉴定出与海拔水平相关的三种化学型。在高原地区(I组),主要化合物为β-石竹烯(12%),δ-卡丁烯(9.3%)和α-pine烯(6.3%),而在中部地区(II组),β-石竹烯(11.5%),主要成分是δ-卡丁烯(8.6%)和石蒜烯氧化物(6.8%)。在低地(第III组)中,主要存在δ-卡丁烯(10.9%),立方波(10.5%)和β-双丁香烯(7.7%)。因此,在本报告中讨论了遗传因素,温度和干旱在与海拔相关的扁豆体育化学多态性中的参与。

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