Results 11 to 20 of about 254 (112)
Acta Biologica Colombiana, 2015 Conociendo las propiedades medicinales de la especie vegetal Psychotria ipecacuanha (Brot.) Stokes, su crítico estado de conservación, así como las dificultades que presenta para la propagación efectiva, el presente estudio tuvo como objetivo evaluar su ...
Catalina Botero Giraldo +2 more
exaly +9 more sources
Three New O-Methyltransferases Are Sufficient for All O-Methylation Reactions of Ipecac Alkaloid Biosynthesis in Root Culture of Psychotria ipecacuanha [PDF]
Journal of Biological Chemistry, 2010 The medicinal plant Psychotria ipecacuanha produces ipecac alkaloids, a series of monoterpenoid-isoquinoline alkaloids such as emetine and cephaeline, whose biosynthesis derives from condensation of dopamine and secologanin. Here, we identified three cDNAs, IpeOMT1-IpeOMT3, encoding ipecac alkaloid O-methyltransferases (OMTs) from P. ipecacuanha.
Taiji Nomura, Toni M Kutchan
exaly +7 more sources
Is a metabolic enzyme complex involved in the efficient and accurate control of Ipecac alkaloid biosynthesis in Psychotria ipecacuanha? [PDF]
Plant Signaling and Behavior, 2010 Ipecac alkaloids produced in the medicinal plant Psychotria ipecacuanha such as emetine and cephaeline possess a monoterpenoid-tetrahydroisoquinoline skeleton, which is formed by condensation of dopamine and secologanin. The condensation products are deglucosylated, and the resulting aglycon is further processed to protoemetine, which is condensed with
Taiji Nomura, Toni M Kutchan
exaly +6 more sources
Emetine and cephaeline content in plants of Psychotria ipecacuanha in Costa Rica
Revista Colombiana de Química, 2020 The objective of this study was to identify the emetic metabolites in different parts of the P. ipecacuanha, a plant with emetic properties. Partial phytochemical analysis was performed to determine the presence of emetine and cephaeline in leaves, stems
María Catalina Rosales López +2 more
doaj +4 more sources
Risk of genetic vulnerability and aspects of the reproductive biology of Psychotria ipecacuanha (Rubiaceae), a threatened medicinal plant species of Brazilian forests [PDF]
Acta Botânica Brasílica, 2019 Psychotria ipecacuanha, commonly known as Ipeca, is a medicinal plant of pharmacological and economic value. The species is distylous; it has populations with two floral morphs, one with long and one with short styles.
Patrícia Campos da Silva +4 more
doaj +4 more sources
Marcadores moleculares en raicilla (Psychotria ipecacuanha)
Tecnología en Marcha, 2005 Se caracterizaron por medio de la técnica de isoenzimas y RAPD 5 ecotipos de (Psychotria ipecacuanha). Los resultados obtenidos son parciales; sin embargo, es clara la presencia de polimorfismos en las diferentes enzimas analizadas. En lo que se refiere
Claudia Zúñiga-Vega +2 more
doaj +9 more sources
Revista Colombiana de Biotecnología, 2014 Título en ingles: Advances in vitro propagation via somatic embryogenesis of Psychotria ipecacuanha (Brot.) Stokes, medicinal plant critically endangered Título corto: Avances en la propagación vía embriogénesis somática de Psychotria ipecacuanha Resumen:
Esther J. Naranjo +2 more
doaj +6 more sources
Acta Agronómica, 2017 Psychotria ipecacuanha is a medicinal plant endangered in Colombia, due to the indiscriminate exploitation suffered several decades ago for its therapeutic importance.
Aura Ines Urrea Trujillo +2 more
doaj +7 more sources
Reproductive studies in ipecac (Psychotria ipecacuanha (Brot.) stockes; Rubiaceae): pollen development and morphology [PDF]
Brazilian Archives of Biology and Technology, 2008 The aim of this work was to carry out the reproductive studies on Brazilian accessions of ipecac, Psychotria ipecacuanha. It presented heterostyly, with brevistylous and longistylous flowers.
Margarete MAGALHÃES Souza +2 more
exaly +4 more sources
Estudo ecogeográfico da poaia [Psychotria ipecacuanha (Brot.) Stokes] [PDF]
Revista Brasileira De Plantas Medicinais, 2009 Este estudo foi conduzido com 13 populações amostradas nos estados RJ, MG, ES e BA para a coleta de dados ecogeográficos da poaia (Psychotria ipecacuanha). Foi conduzida a análise de freqüência de ocorrência de características ambientais, tais como: altitude, pluviosidade, temperaturas máxima, média e mínima absolutas, latitude e longitude.
E R Martins
exaly +12 more sources