巴西亚马逊森林中的化学和基因型变化。

Chemical and Genotypic Variations in from the Brazilian Amazon Forest.

机构信息

Programa de Pós-Graduação em Recursos Naturais da Amazônia, Universidade Federal do Oeste do Pará, Santarém 68040-255, PA, Brazil.

Institute of Chemistry, University of São Paulo, São Paulo 05508-000, SP, Brazil.

出版信息

Molecules. 2020 Dec 25;26(1):69. doi: 10.3390/molecules26010069.

has been exploited since the end of the nineteenth century for its essential oil, a valuable ingredient in the perfumery industry. This species occurs mainly in Northern South America, and the morphological similarity among different species often leads to misidentification, which impacts the consistency of products obtained from these plants. Hence, we compared the profiles of volatile organic compounds (essential oils) and non-volatile organic compounds (methanolic extracts) of two populations of from the RESEX and FLONA conservation units, which are separated by the Tapajós River in Western Pará State. The phytochemical profile indicated a substantial difference between the two populations: samples from RESEX present α-phellandrene (22.8%) and linalool (39.6%) in their essential oil composition, while samples from FLONA contain mainly linalool (83.7%). The comparison between phytochemical profiles and phylogenetic data indicates a clear difference, implying genetic distinction between these populations.

自 19 世纪末以来，它的精油就被广泛利用，这种精油是香水行业的一种有价值的成分。该物种主要分布在南美洲北部，不同物种之间的形态相似性常常导致鉴定错误，从而影响了从这些植物中获得的产品的一致性。因此，我们比较了来自 RESEX 和 FLONA 保护单位的两个种群的挥发性有机化合物（精油）和非挥发性有机化合物（甲醇提取物）的图谱，这两个种群被帕拉州西部的塔帕若斯河隔开。植物化学图谱表明，这两个种群之间存在显著差异：来自 RESEX 的样本在其精油组成中含有α-蒎烯（22.8%）和芳樟醇（39.6%），而来自 FLONA 的样本主要含有芳樟醇（83.7%）。植物化学图谱和系统发育数据的比较表明存在明显差异，这意味着这些种群之间存在遗传差异。