Ait Elallem Khadija, Ben Bakrim Widad, Yasri Abdelaziz, Boularbah Ali
Laboratoire Bioressources et Sécurité Sanitaire des Aliments, Faculté des Sciences et Techniques, Université Cadi Ayyad, Marrakech 40000, Morocco.
Biomass Valorization and Biorefinery Laboratory, Biodiversity & Plant Sciences Division, Mohammed VI Polytechnic University, Benguerir 43150, Morocco.
Plants (Basel). 2024 Sep 22;13(18):2656. doi: 10.3390/plants13182656.
Revegetation emerges as a promising approach to alleviate the adverse impacts of mining residues. However, it is essential to evaluate the characteristics of these materials and select suitable plant species to ensure successful ecosystem restoration. This study aimed to investigate the effects of phosphate-mine residues (MR) on the growth, biochemical properties, and essential oil concentration of L., L., L., and L. The results showed that L. appeared to be particularly well-suited to thriving in MR soil. Our finding also revealed that L., L., and L. grown in MR exhibited significantly lower growth performance (lower shoot length, smaller leaves, and altered root structure) and higher antioxidant activities, with an alterations of photosynthetic pigment composition. They showed a decrease in total chlorophylls when grown on MR (0.295, 0.453, and 0.562 mg g FW, respectively) compared to the control (0.465, 0.807, and 0.808 mg g FW, respectively); however, they produced higher essential oil content (1.8%, 3.06%, and 2.88%, respectively). The outcomes of this study could offer valuable insights for the advancement of revegetation technologies and the utilization of plant products derived from phosphate-mine residues.
植被恢复成为减轻采矿废渣负面影响的一种有前景的方法。然而，评估这些材料的特性并选择合适的植物物种以确保生态系统成功恢复至关重要。本研究旨在调查磷矿废渣（MR）对薄荷（Mentha arvensis L.）、留兰香（Mentha spicata L.）、罗勒（Ocimum basilicum L.）和迷迭香（Rosmarinus officinalis L.）生长、生化特性和精油含量的影响。结果表明，薄荷似乎特别适合在MR土壤中茁壮成长。我们的研究还表明，在MR中生长的留兰香、罗勒和迷迭香表现出显著较低的生长性能（茎长较短、叶片较小和根系结构改变）和较高的抗氧化活性，光合色素组成也发生了变化。与对照（分别为0.465、0.807和0.808 mg g鲜重）相比，它们在MR上生长时总叶绿素含量降低（分别为0.295、0.453和0.562 mg g鲜重）；然而，它们产生了更高的精油含量（分别为1.8%、3.06%和2.88%）。本研究结果可为植被恢复技术的进步以及磷矿废渣衍生植物产品的利用提供有价值的见解。
