Species from the Garcinia genus (Clusiaceae family) are used in treatment of many diseases and metabolic disorders frequently associated with oxidative stress. The characteristic metabolites found this xanthones benzophenones, which have antioxidant properties, among relevant biological potentials. This review provides a specific vision about activity species, reporting vitro vivo assays, descr...

As part of our ongoing research on antioxidant agents from Brazilian flora, we screened the free radical scavenging activity of two extracts and eight fractions of Kielmeyera variabilis (Clusiaceae) using DPPH· (2,2-diphenyl-1-picrylhydrazyl-hydrate) and ABTS·+ [2,2'-azinobis(3-ethylenebenzothiazoline-6-sulfonic acid)] colorimetric assays. The ethyl acetate and n-butanol fractions of the leaves...

Horizontal gene transfer (HGT) between sexually unrelated species has recently been documented for higher plants, but mechanistic explanations for HGTs have remained speculative. We show that a parasitic relationship may facilitate HGT between flowering plants. The endophytic parasites Rafflesiaceae are placed in the diverse order Malpighiales. Our multigene phylogenetic analyses of Malpighiale...

CHEMICAL COMPOSITION AND PHOTOPROTECTIVE ANTIRADICAL ACTIVITIES OF THE BRANCHES Platonia insignis (CLUSIACEAE). The chemical study of the branches enabled isolation biflavonoid morelloflavone and identification, by mass spectrometry, over 14 polyphenols, including seven biflavonoids three derivatives, two benzophenones, one xanthone. in vitro biological tests solar photoprotection antiradical a...