Nascimento Sidney Vasconcelos do, Costa Paulo Henrique de Oliveira, Herrera Hector, Caldeira Cecílio Frois, Gastauer Markus, Ramos Silvio Junio, Oliveira Guilherme, Valadares Rafael Borges da Silva
Instituto Tecnológico Vale, Rua Boaventura da Silva 955, Belém CEP 66050-090, Brazil.
Programa de Pós-Graduacão em Genética e Biologia Molecular, Universidade Federal do Pará, Belém CEP 66075-110, Brazil.
Plants (Basel). 2022 Mar 7;11(5):712. doi: 10.3390/plants11050712.
Kunth is native to ferruginous rocky outcrops (known as ) in the eastern Amazon. Native are considered hotspots of biological diversity and have one of the largest iron ore deposits in the world. There, can grow in post-mining areas where molecular mechanisms and rhizospheric interactions with soil microorganisms are expected to contribute to their establishment in rehabilitating minelands (RM). In this study, we compare the root proteomic profile and rhizosphere-associated bacterial and fungal communities of growing in and RM to characterize the main mechanisms that allow the growth and establishment in post-mining areas. The results showed that proteins involved in response to oxidative stress, drought, excess of iron, and phosphorus deficiency showed higher levels in and, therefore, helped explain its high establishment rates in RM. Rhizospheric selectivity of microorganisms was more evident in The microbial community structure was mostly different between the two habitats, denoting that despite having its preferences, can associate with beneficial soil microorganisms without specificity. Therefore, its good performance in RM can also be improved or attributed to its ability to cope with beneficial soil-borne microorganisms. Native plants with such adaptations must be used to enhance the rehabilitation process.
昆斯原产于亚马逊东部的含铁岩石露头（称为 ）。原生 被认为是生物多样性热点地区，拥有世界上最大的铁矿床之一。在那里， 可以在采矿后的地区生长，预计分子机制以及与土壤微生物的根际相互作用有助于它们在恢复矿区（RM）中的定植。在本研究中，我们比较了在 和RM中生长的 的根蛋白质组图谱以及与根际相关的细菌和真菌群落，以表征使其能够在采矿后地区生长和定植的主要机制。结果表明，参与氧化应激、干旱、铁过量和磷缺乏反应的蛋白质在 和 中水平较高，因此有助于解释其在RM中的高定植率。微生物的根际选择性在 中更为明显。两个栖息地之间的微生物群落结构大多不同，这表明尽管 有其偏好，但它可以与有益的土壤微生物无特异性地关联。因此，它在RM中的良好表现也可以归因于其应对有益土壤传播微生物的能力。必须使用具有这种适应性的原生植物来加强恢复过程。
