Journal Article

Mass Spectrometry of Flavonoid Vicenin-2, Based Sunlight Barriers in Lychnophora species

Gouveia, Dayana Rubio, Lopes, Norberto Peporine, Turatti, Izabel Cristina Casanova, Silva, Denise Brentan, Ernst, Madeleine, Teixeira, Simone Pádua

2014

Overview

Lychnophora salicifolia plants collected from four different places in Brazil (three states: Goias, Minas Gerais and Bahia) revealed a conserved accumulation of vicenin-2, a di- C -glycosyl flavonoid. Quantitative studies by UPLC-MS/MS showed high concentration of vicenin-2 in leaves from sixty specimens of six Lychnophora species. So the tissue distributions of vicenin-2 were evaluated in wild Lychnophora leaves (Asteraceae) by laser based imaging mass spectrometry (IMS) to propose its distributions and possible functions for the species analyzed. Mass spectrometric imaging revealed that vicenin-2, unlike other flavonoids, was produced at the top of the leaves. The combination of localization and UV absorption properties of vicenin-2 suggests that it could act as a UV light barrier to protect the plants, since plants are sessile organisms that have to protect themselves from harsh external conditions such as intense sunlight.

• Publisher: Nature Publishing Group UK,Nature Publishing Group
• Subject: 140/58 / 639/638/11/296 / 639/638/403/349 / 704/158 / Apigenin - chemistry / Asteraceae - chemistry / Chromatography, High Pressure Liquid / Flavonoids / Flavonoids - chemistry / Glucosides - chemistry / Humanities and Social Sciences / Leaves / Localization / Mass Spectrometry / Mass spectroscopy / multidisciplinary / Plant Extracts - chemistry / Plant Leaves - chemistry / Plant protection / Quantitative research / Science / Scientific imaging / Species / Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization / Sunlight / Ultraviolet radiation