Results 101 to 110 of about 2,510 (201)

The antibacterial activity of alkaloids obtained from Tabernaemontana catharinensis A.DC. [PDF]

, 2003
Se estudió la actividad antibacteriana de extractos secos metanólicos y fracción alcaloidea obtenidos de la corteza del tronco de Tabernaemontana catharinensis A. DC., por el método de difusión de Kirby-Bauer.
Battista, G. de, Bargardi, S., Guida, A.
core   +1 more source

Insecticidal activity of a Tabernaemontana arborea root bark alkaloid extract against Culex quinquefasciatus larvae

Industrial Crops and Products
The (sub-)tropical mosquito species Culex quinquefasciatus Say (Diptera: Culicidae) is a major vector for various parasitic and viral zoonotic diseases that pose a significant threat to human health.
Felix Krengel, Roman Pavela, Antonio Carrillo-Bolea, Jonathan Dickinson, Patricia Guevara-Fefer   +4 more
doaj   +1 more source

Tabernaemontana balansae Pitard

, 2005
Tabernaemontana balansae Pitard in Lecomte Fl. Gén. Indo-Chine 3: 1148 (1933). LECTOTYPE. — Balansa 2102 (P), Vietnam, Hà Tây, near Tu Phap, designated here. Balansa 2102 (HM) was designated by Lý, Feddes Repert. 97: 451 (1986) but as this specimen could not be located at HM the later designation above should stand until such a time as it is found.
Middleton, David J., Regalado Jr, Jacinto C.   +1 more
openaire   +2 more sources

Atividade alelopática de extratos aquosos de plantas medicinais na germinação de Lactuca sativa L. e Bidens pilosa L. Allelopathic activity of aqueous extracts of medicinal plants on the germination of Lactuca sativa L. and Bidens pilosa L.

Revista Brasileira de Plantas Medicinais, 2011
O potencial alelopático de quatro diferentes extratos de plantas medicinais (Eclipta alba, Gomphrena globosa, Tabernaemontana catharinensis e Tithonia diversifolia) foi avaliado na germinação de Bidens pilosa e Lactuca sativa.
L.L. Alves, P.V.A. Oliveira, S.C. França, P.L.C. Alves, P.S. Pereira   +4 more
doaj   +1 more source

Triterpenes from (Rubiaceae) as Inhibitors of Acetylcholinesterase

Natural Product Communications, 2009
Seventy-six plant extracts from the Panamanian flora have been screened for acetylcholinesterase (AChE) inhibitors by thin-layer chromatography (TLC) bioautography.
Angela I. Calderón, Johayra Simithy, Giuliana Quaggio, Alex Espinosa, Jose Luis López-Pérez, Mahabir P. Gupta   +5 more
doaj   +1 more source

Chemical Constituents Antioxidant and Anticholinesterasic Activity of Tabernaemontana catharinensis

The Scientific World Journal, 2013
The present work aimed to analyze the alkaloid content of the ethanolic extract of Tabernaemontana catharinensis (Apocynaceae family) and its fractions as well as to evaluate their antioxidant and anticholinesterasic activities.
Carla Nicola, Mirian Salvador, Adriana Escalona Gower, Sidnei Moura, Sergio Echeverrigaray   +4 more
doaj   +1 more source

An iboga alkaloid chemotaxonomic marker from endemic Tabernaemontana ternifolia with antitubercular activity

, 2019
Coronaridine (1) was isolated from the CH2Cl2 root extract of Tabernaemontana ternifolia. The structure of 1 was established from 1D- and 2D-NMR and HR-ESIMS experiments, and by comparison with reported spectroscopic data.
John R. Cort (596123), Scott G. Franzblau (380600), Syed G. A. Moinuddin (5827865), Alicia M. Aguinaldo (5827874), Rhea C. Garcellano (5827862), Rui Ma (239028)   +5 more
core   +1 more source

In vitro bioactivities of Tabernaemontana divaricata andTabernaemontana divaricata ‘Flore Pleno’ variant / Muhammad Nazzim Muaz Abdul Halim

, 2022
Two Tabernaemontana species, Tabernaemontana divaricata (TD) and Tabernaemontana divaricata ‘Flore Pleno’ variant (TDF) were chosen to be studied for their bioactivities in relation to wound healing properties.
Muhammad Nazzim Muaz, Abdul Halim
core   +1 more source

Apocynaceae s. str. do Parque Nacional da Serra da Canastra, Minas Gerais, Brasil

Rodriguésia
Este trabalho apresenta o levantamento das espécies de Apocynaceae s. str. no Parque Nacional da Serra da Canastra, localizado no sudoeste de Minas Gerais. Foram encontradas 30 espécies, distribuídas em 13 gêneros.
Rosemeri Morokawa, André Olmos Simões, Luiza Sumiko Kinoshita   +2 more
doaj   +1 more source

A new natural auaternary indole slkaloid isolated from Tabernaemontana laeta Mart. (Apocynaceae)

Journal of the Brazilian Chemical Society, 2001
A new natural quaternary alkaloid, Nb-methylvoachalotine (1), was obtained from the root bark of Tabernaemontana laeta together with three dimeric indole alkaloids, conodurine (2), voacamine (3) and tabernamine (4), and the monomeric indole alkaloids 19S-
Medeiros Walter L. B., Vieira Ivo José C., Mathias Leda, Braz-Filho Raimundo, Schripsema Jan   +4 more
doaj