Antibacterial Activity of Glycosylated Flavonoids Isolated from Ocotea notata Leaves.

Research into natural products has led to the discovery of new drugs. This work shows relevant data on the antibacterial activity of Ocotea notata leaves. Dichloromethane fraction (DF) from leaves of O.

Effects of UV-B radiation on secondary metabolite production, antioxidant activity, photosynthesis and herbivory interactions in Nymphoides humboldtiana (Menyanthaceae).

Ultraviolet B-light (UV-B) can exert indirect effects on plant-herbivore interactions by inducing changes in constitutive and induced chemical defenses, since it modulates physiological aspects of plants. This study evaluated the action of UV-B radiation on photosynthesis and production of secondary metabolites in Nymphoides humboldtiana and the cascade effects on the relationship of this macrophyte with a generalist herbivore, the gastropod mollusk Biomphalaria glabrata. After 13 days of UV-B exposition under laboratory conditions, the floating macrophyte N.

The Hydroalcoholic Extract of Leaves of Mandevilla moricandiana Induces NO-Mediated Vascular Relaxation.

Natural products extracted from plants represent a valuable source of new bioactive substances. Many studies describe the potential of plant products for the treatment of cardiovascular diseases. Species of the genus have been studied for their biological activities, mainly as antioxidant, anti-inflammatory, and vasorelaxant.

Antimycobacterial and nitric oxide production inhibitory activities of Ocotea notata from Brazilian restinga.

The genus Ocotea (Lauraceae) is distributed mainly in tropical and subtropical regions. Some species of this genus as O. puberula and O.