Paiva Selma R, Lima Lucilene A, Figueiredo Maria Raquel, Kaplan Maria Auxiliadora C
Setor de Botânica, Departamento de Biologia Geral, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ, Brasil.
An Acad Bras Cienc. 2011 Dec;83(4):1165-70. doi: 10.1590/s0001-37652011000400004.
Plumbago scandens L. is a Brazilian tropical/subtropical species that occurs along the coast. Chemically it is mainly represented by naphthoquinones, flavonoids, terpenoids and steroids. The aim of the present work is to study quantitative changes in the root metabolic production of Plumbago scandens during different physiologic developmental stages relative to floration. The results indicated the presence of four substances in the extracts: plumbagin, epi-isoshinanolone, palmitic acid and sitosterol, independent on developmental stage. The naphthoquinone plumbagin has always showed to be the major component of all extracts. Naphthoquinones exhibited their highest content during floration, while the content of the two others components decreased during this stage, revealing an inverse profile. The chemical composition changed depending on the plant requirements.
南美紫茉莉是一种分布于巴西沿海的热带/亚热带植物。其化学成分主要包括萘醌、黄酮类化合物、萜类化合物和甾体化合物。本研究旨在探讨南美紫茉莉根代谢产物在不同生理发育阶段（相对于花期）的定量变化。结果表明，提取物中存在四种物质：紫茉莉苷、表异紫罗醇酮、棕榈酸和甾醇，且与发育阶段无关。萘醌类化合物紫茉莉苷一直是所有提取物中的主要成分。萘醌类化合物在花期含量最高，而其他两种成分在此阶段含量下降，呈现出相反的变化趋势。化学成分根据植物的需求而变化。
