Apresentamos aqui o levantamento das Apocynaceae de Vitória da Conquista, Bahia, Brasil. São reconhecidos 18 gêneros e 26 espécies nativas, incluindo 11 ocorrências novas para município: Asclepias curassavica, Aspidosperma polyneuron, Blepharodon ampliflorum, Ditassa grandiflora, D. lenheirensis, Himatanthus bracteatus, Ibatia ganglinosa, Macropharynx peltata, Oxypetalum arachnoideum, Petaloste...

A busca por produtos naturais que possam substituir preservantes da madeira sintéticos é crescente. Dentre estes produtos, estão os óleos essenciais (OEs). Portanto, o objetivo deste estudo foi avaliar a atividade antifúngica dos OEs de Blepharocalyx salicifolius, Nectandra grandiflora, megapotamica e Piper gaudichaudianum, sobre fungos apodrecedores Trametes versicolor Gloeophyllum trabeum. Os...

Amaryllidaceae are known as ornamental plants, furthermore some species of this family contain galanthamine, an acetylcholinesterase inhibitor approved for the treatment of Alzheimer ́s disease, and other alkaloids with interesting pharmacological activity. The chemical composition of alkaloids from Zephyranthes grandiflora Lindl. was analyzed by GC/MS. Seven known compounds, belonging to five s...

Three isoflavanoids, isovestitol (1), medicarpin (2), and sativan (3), along with another known compound, betulinic acid (4), were isolated from the root of Sesbania grandiflora. The structures of the isolated compounds were characterised by means of spectroscopic techniques (UV, IR, MS, 1H- and 13C-NMR, DEPT, COSY, HMQC, HMBC, and MS analysis). All the tested compounds 1-4 exhibited antituberc...

Two new species of Oreocharis Benth. from Fan Si Pan, the highest mountain in Vietnam (Sa Pa) are described and illustrated. Oreocharis grandiflora W.H.Chen, Q.H.Nguyen & Y.M.Shui, is similar to O. flavida Merr. from Hainan province, China, but differs mainly by its larger and infundibuliform corolla, stamens adnate to the base of the corolla tube and stamens coherent in two pairs. The second, ...

The enzyme, ß-glucogallin: 1,2,3,6-tetra-O-galloyl-ß-D-glucose 4-O-galloyltransferase, which catalyzes the last common step in the biosynthesis of the two subclasses of hydrolyz­ able tannins, i.e. gallotannins and ellagitannins, was purified 868-fold from leaves of peduncu­ late oak ( Quercus robur, syn. Q. pedunculata) to apparent homogeneity. Polyclonal antibod­ ies against this pivotal enzy...