The ionome is the elemental composition of a living organism, its tissues, cells or cell compartments. The ionomes of roots, stems and leaves of 14 native Brazilian forest species were characterised to examine the relationships between plant and organ ionomes and the phylogenetic and ecological affiliations of species. The null hypothesis that ionomes of Brazilian forest species and their organs do not differ was tested. Concentrations of mineral nutrients in roots, stems and leaves were determined for 14 Brazilian forest species, representing seven angiosperm orders, grown hydroponically in a complete nutrient solution. The 14 species could be differentiated by their ionomes and the partitioning of mineral nutrients between organs. The ionomic differences between the 14 species did not reflect their phylogenetic relationships or successional ecology. Differences between shoot ionomes and root ionomes were greater than differences in the ionome of an organ when compared among genotypes. In conclusion, differences in ionomes of species and their organs reflect a combination of ancient phylogenetic and recent environmental adaptations. This article is protected by copyright. All rights reserved.

中文翻译：

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系统发育和生态学对 14 种巴西本土物种根、芽和植物离子组的影响

离子体是生物体、其组织、细胞或细胞区室的元素组成。对 14 种巴西本土森林物种的根、茎和叶的离子组进行表征，以检查植物和器官离子组之间的关系以及物种的系统发育和生态隶属关系。检验了巴西森林物种的离子组及其器官没有差异的零假设。测定了 14 种巴西森林物种的根、茎和叶中矿物质营养素的浓度，这些物种代表了七个被子植物目，在完整的营养液中以水培方式生长。这 14 个物种可以通过它们的离子组和器官之间矿质营养素的分配来区分。14 个物种之间的离子组差异并未反映它们的系统发育关系或演替生态学。当在基因型之间进行比较时，茎离体和根离体之间的差异大于器官离体的差异。总之，物种及其器官的离子组的差异反映了古代系统发育和最近环境适应的结合。本文受版权保护。版权所有。