Results 21 to 30 of about 12,097 (227)
Semi-syntheses and interrogation of indole-substituted Aspidosperma terpenoid alkaloids.
Organic and biomolecular chemistry, 2022 We demonstrated here a series of Aspidosperma terpenoid alkaloids can be quickly prepared using semisynthesis from naturally sourced tabersonine, featuring multiple oxygen-based substituents on the indole ring such as hydroxy and methoxy groups.
Jinfeng Kang +4 more
semanticscholar +1 more source
Antimalarial plants used by indigenous people of the Upper Rio Negro in Amazonas, Brazil [PDF]
, 1906 Ethnopharmacological relevanceThis is the first intercultural report of antimalarial plants in this region. The aim of this study was to document the medicinal plants used against malaria by indigenous people in the Upper Rio Negro region and to review ...
Kffuri, Carolina Weber +4 more
core +1 more source
Activity of alkaloids from Aspidosperma nitidum against Leishmania (Leishmania) amazonensis
Scientific Reports, 2022 This study evaluated the morphological changes caused by fractions and subfractions, obtained from barks of Aspidosperna nitidum , against L . ( L .) amazonensis promastigotes. The ethanolic extract (EE) obtained through the maceration of trunk barks was
Andreza do Socorro Silva da Veiga +10 more
semanticscholar +1 more source
Acta Botânica Brasílica, 2018 As a result of systematic study of the Neotropical genus Aspidosperma (Apocynaceae), we reestablish the species A. centrale and A. duckei, and report A. steinbachii and A. tambopatense as new records for Brazil. We provide taxonomic descriptions of these
Andreza Stephanie de Souza Pereira +3 more
doaj +1 more source
Richness and Composition of Mycorrhizal Fungi Varies by Flood Level and River Basin in Oligotrophic Amazonian Seasonally Flooded Forests. [PDF]
Ecol EvolConceptual representation of topographic gradients in Amazonian igapó forests. High, medium, and low igapós differ in elevation and flood duration, with low igapós experiencing the longest periods of inundation. Fungal mycelia and DNA symbols indicate sampling of root‐associated mycorrhizal communities across the gradient, used to assess the influence ...
Pombo MM +6 more
europepmc +2 more sources
Characterization and selection of excavation sites by Campephilus leucopogon in two forest regions in Northwestern Argentina [PDF]
, 2016 Los pájaros carpinteros (Aves, Picidae) son considerados especies ingenieras de ecosistemas, y son sensibles a cambios en la composición y estructura de los bosques. El noroeste Argentino contiene la mayor superficie de bosque nativo del país.
Albanesi, Sebastian Alejandro +4 more
core +1 more source
Research, Society and Development, 2021 Protocolos de testes de germinação e tetrazólio padronizados são importantes para a análise de sementes, inclusive para a espécie Aspidosperma pyrifolium, esseencia florestal de valor econômico e ainda pouco estudada segundo a literatura, sendo, portanto,
M. Cunha +4 more
semanticscholar +1 more source
RESISTÊNCIA NATURAL DE SEIS ESPÉCIES DE MADEIRAS DA REGIÃO AMAZÔNICA A FUNGOS APODRECEDORES, EM ENSAIOS DE LABORATÓRIO [PDF]
Ciência Florestal, 2006 O presente trabalho avaliou a resistência natural das madeiras de Aspidosperma desmanthum (Araracanga), Parinari excelsa (Parinari), Mouriri callocarpa (Miraúba), Marmaroxylon racemosum (Angelim-rajado), Peltogyne paniculata (Roxinho) e Astronium sp ...
Ailton Teixeira do Vale +3 more
doaj +2 more sources
Ciencia Amazónica (Iquitos), 2012 A fin de evaluar el potencial antimalárico de remedios tradicionales utilizadas en el Perú por las poblaciones indígenas y mestizas del río Nanay en Loreto, fueron entrevistados sobre el uso medicina tradicional para el tratamiento de la malaria.
Lastenia Ruiz Mesía +6 more
doaj +1 more source
Natural durability of five amazonian species in two different decay environments [PDF]
Ciência Rural: Understanding the natural durability of Amazonian wood species in different deterioration environments is essential to promote their sustainable use and extend their useful life in various applications.
Júlio Henrique Germano de Souza +3 more
doaj +1 more source