Ten Brazilian medicinal plants used to treat gastritis and ulcers were carefully selected on the basis of ethnopharmacological importance and antiulcerogenic activity previously described. The antioxidant activity of the methanolic extracts was determined in analysis conditions that simulate a real biological activity on inhibition of the oxidative burst induced in neutrophils using Helicobacte...

Bioassay-guided fractionation of an EtOAc/MeOH extract of Adenaria floribunda young leaves using MCF-7, H-460, and SF-268 cancer cell lines yielded four new active compounds named adenaflorins A-D (1-4). Their chemical structures were determined by spectroscopic means. Adenaflorin A (1) was the most cytotoxic.

Harvestmen are solitary, nocturnal foragers that have a variety of feeding habits, ranging from scavenging to predation (see review in Gnaspini 1996). Although harvestmen seem to be generalist omnivorous arthropods, accepting both plant and animal matter, several species show a tendency to carnivory (Bris-Reports of fru-givory in harvestmen are scarce and in general are restricted to captive an...

Lectin of Wisteria floribunda specifically agglutinates group C streptococci. The reaction is strongly inhibited by N-acetyl-d-galactosamine, slightly by lactose, and not at all by galactose. The utility of the simple test of the lectin with group C streptococci is discussed.

CONTEXT  Allanblackia floribunda Oliver (Guttiferae) is an African medicinal plant used traditionally to treat a variety of ailments. OBJECTIVE  We investigated the antitumor, radical scavenging, antimycobacterial, antibacterial and antifungal activities of the root bark extract of A. floribunda and three isolated phenolics, namely 1,7-dihydroxyxanthone (1), morelloflavone (2) and 7'-O-glucos...

Abstract Background Electrical impedance tomography (EIT) has rarely been applied in plant science, particularly to study resistance abiotic and biotic stresses. In this study, we evaluated the freezing of floribunda roses ( Rosa Floribunda) during frost dehardening using EIT technique identify a new method for rapid non-destructive measurement resistance. Results The current was excitation sou...

5