Chemical composition fluctuations in roots of Plumbago scandens L. in relation to floral development

Anais da Academia Brasileira de Ciências

Selma R. Paiva²  Lucilene A. Lima¹  Maria Raquel Figueiredo¹  Maria Auxiliadora C. Kaplan¹ 

[1] ,Universidade Federal Fluminense Instituto de Biologia Departamento de Biologia GeralNiterói RJ ,Brasil

关键词: GC;    plant physiology;    Plubaginaceae;    secondary metabolites;    CG;    fisiologia vegetal;    Plumbaginaceae;    metabólitos secundários;   

DOI  :  10.1590/S0001-37652011000400004

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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