Related Experiment Video
Updated: May 26, 2026

Two-Dimensional Visualization and Quantification of Labile, Inorganic Plant Nutrients and Contaminants in Soil
Published on: September 1, 2020
Chemical composition fluctuations in roots of Plumbago scandens L. in relation to floral development
Selma R Paiva1, Lucilene A Lima, Maria Raquel Figueiredo
1Setor de Botânica, Departamento de Biologia Geral, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ, Brasil. selpaiva@vm.uff.br
Abstract:
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.
Related Concept Videos
Biological Clocks and Seasonal Responses
Morphogenesis
Basic Plant Anatomy: Roots, Stems, and Leaves
Water and Mineral Acquisition
