Aluminum (Al) is the most plentiful metal present in the Earth’s crust, and when present in acidic soils (pH < 5.0), it becomes soluble and toxic to most plant species. Species from acidic and aluminum-rich soil regions, such as Brazilian Cerrado, developed mechanisms allowing for their growth in these conditions. Some can accumulate Al in their tissues, especially in the leaves. However, the possible functions of Al in these plants are unknown. This study investigated the impact of Al on the organogenesis and production of phenolic compounds in extracts from cotyledonary leaf segments of two Al-accumulator species, Qualea grandiflora Mart. and Vochysia tucanorum Mart. (Vochysiaceae). The addition of Al at 320 μM in the absence of 6-benzylaminopurine (BAP) resulted in the regeneration of both species’ adventitious roots in cotyledonary leaf segments. In contrast, adding BAP without Al did not generate regeneration responses. However, shoot regeneration and development occurred when 0.44 and 0.88 μM BAP was added to the culture medium with 320.0 μM Al. Both species exhibited a noteworthy phenolic content, further enhanced by adding Al and, or, BAP. The antioxidant capacity of extracts also demonstrated a significant increase from the addition of Al and, or, BAP in both species. These findings have important significance for the cultivation and propagation of these species and demonstrate a close relationship between Al and the evolution of these plants. This study is the first to relate Al with phenolic content and antioxidant activity in these two Cerrado plant species, filling a gap in existing research.

铝 (Al) 是地壳中含量最丰富的金属，当存在于酸性土壤（pH < 5.0）中时，它会变得可溶并对大多数植物物种产生毒性。来自酸性和富含铝的土壤地区的物种，例如巴西塞拉多，发展出了允许它们在这些条件下生长的机制。有些可以在其组织中积累铝，特别是在叶子中。然而，铝在这些植物中可能的功能尚不清楚。本研究调查了铝对两种铝积累物种Qualea grandiflora Mart子叶叶段提取物中酚类化合物的器官发生和生产的影响。和Vochysia tucanorum市场。（Vochysiaceae）。在不存在 6-苄氨基嘌呤 (BAP) 的情况下添加 320 μM Al 会导致两个物种子叶叶段中的不定根再生。相比之下，添加不含 Al 的 BAP 不会产生再生反应。然而，当向含有320.0μM Al的培养基中添加0.44和0.88μM BAP时，芽再生和发育发生。这两种物质都表现出值得注意的酚类含量，通过添加 Al 和/或 BAP 进一步提高了酚类含量。两种物种中添加 Al 和/或 BAP 后，提取物的抗氧化能力也显着提高。这些发现对于这些物种的栽培和繁殖具有重要意义，并证明了铝与这些植物的进化之间的密切关系。