Doghbage Abdelghafour, Belhadj Safia, Belhouadjeb Fathi Abdellatif, Boukerker Hassen, Mevy Jean Philippe, Gauquelin Thierry, Tonetto Alain, Merdas Saifi, Touati Bakria, Saimi Fethi, Rahem Rafik, Derridj Arezki, Hassen Feriel Foulla, Soufan Walid
Faculté des Sciences Biologiques et Agronomiques, Université Mouloud Mammeri de Tizi-Ouzou, Tizi Ouzou 15000, Algeria.
Centre de Recherche en Agropastoralisme (CRAPAST), Djelfa 17000, Algeria.
Life (Basel). 2023 Jul 24;13(7):1617. doi: 10.3390/life13071617.
The species belonging to the genus 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 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 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.
该属的物种具有生态、经济和药用价值。它们表现出很高的生态可塑性。本研究有助于对处于不同生物气候条件下的该属10个种群的种内多样性和变异性进行研究。为了了解该物种在包括海拔和干旱等极端条件下所形成的策略，并基于叶片的形态和超微结构特征来识别可观察到的适应过程，在阿尔及利亚选取了9个地点，在法国选取了1个地点。作为这项研究的结果，我们收集到了大量有关所研究的10个种群叶片形态和微植物表皮变异性的重要信息。统计分析表明这些种群在所研究的特征方面存在非常显著的差异。已证明环境因素对大多数所测量的叶片特征的异质性也有显著影响。此外，通过扫描电子显微镜（SEM）观察使我们能够突出所研究物种的新特征，例如小叶上的腺毛和表皮中嵌入的气孔。这些标准可以补充该属系统分类中现有的形态特征。总体而言，所研究的物种呈现出旱生形态特征，由于它们有能力耐受极端干旱条件，这使它们有机会被用于荒漠化缓解项目。
