PDF(Pubmed)
Abstract：
The species belonging to the genus Pistacia possess ecological, economic, and medicinal value. They show a very high ecological plasticity. This research is a contribution to the study of the intraspecific diversity and variability of 10 populations of Pistacia lentiscus in different bioclimates. Nine locations in Algeria and one site in France have been selected in order to understand the strategies developed by this species under extreme conditions, including altitude and aridity, and to identify the adaptive processes that can be observed based on the morphological and ultrastructural features of the leaf. As a result of this research, we have collected a large quantity of important information on morphological and microphytodermal leaf variability for the ten studied populations. The statistical analyses showed a very important difference in the studied characteristics between these populations. It has been demonstrated that environmental factors also have a significant impact on the heterogeneity of most measured leaf features. Moreover, the observations with the scanning electron microscope (SEM) enabled us to highlight new characteristics of the studied species, such as the glandular trichomes on the leaflets and embedded stomata in the epidermis. These criteria could supplement the existing morphological characteristics used in the systematic classification of the Pistacia genus. Overall, the studied species have shown xeromorphy features, which give them the opportunity to be used in desertification mitigation programs, due to their ability to withstand conditions of extreme aridity.
摘要：
属于黄连木属的物种具有生态，经济,和药用价值。它们表现出很高的生态可塑性。这项研究为研究黄连木10个种群在不同生物物种中的种内多样性和变异性做出了贡献。选择了阿尔及利亚的九个地点和法国的一个地点，以了解该物种在极端条件下制定的策略，包括海拔和干旱，并根据叶片的形态和超微结构特征确定可以观察到的适应过程。作为这项研究的结果，我们已经收集了大量的重要信息的形态和微植物胚叶变异的10个研究群体。统计分析显示，这些种群之间的研究特征存在非常重要的差异。已经证明，环境因素对大多数测量的叶片特征的异质性也有重大影响。此外，扫描电子显微镜（SEM）的观察使我们能够突出所研究物种的新特征，如小叶上的腺毛和表皮中嵌入的气孔。这些标准可以补充黄连木属系统分类中使用的现有形态特征。总的来说,所研究的物种显示出干燥形态的特征，这给了他们在荒漠化缓解计划中使用的机会，由于它们能够承受极端干旱的条件。
