Results 11 to 20 of about 16,208 (203)

Larvicidal Activity of Phytochemicals From Handroanthus impetiginosus Seeds Against Culex quinquefasciatus. [PDF]

Chem Biodivers
The hexane extract was obtained from the seeds of H. impetiginosus, from which fatty acids and FAMEs were obtained. The three samples were tested on C. quinquefasciatus larvae, promoting mortality with moderate LC50 values. The hexane extract was analyzed by gas chromatographymass spectrometry (GC‐MS), and the most abundant compounds were ethyl oleate (
Santos LCD, Azevedo LS, de Siqueira EP, Coimbra MC, Alves SN, Castro AHF, Lima LARDS.   +6 more
europepmc   +2 more sources

Silk Fibroin-Stabilized Lapachol Microemulsion Enhances Antiglioma Activity In Vitro. [PDF]

Chem Biodivers
Silk fibroin‐stablized lapachol microformulation antiglioma activity. ABSTRACT Gliomas are the most prevalent of the brain tumors, and are associated with high mortality and limited therapeutic options. This study introduces, for the first time, a silk fibroin (SF)‐based microemulsion as a nanocarrier for lapachol (LP).
Queiroz JP, Oliveira FR, Santos EG, Holanda F, Marinho V, da Silva EO, Carvalho JCT, Fernandes CP, Macchi BM, Ferreira IM, Nascimento JLM.   +10 more
europepmc   +2 more sources

Intraspecific Trait Variation in Tree Species Responds to Environmental Heterogeneity at Range-Wide but Not Local Scales. [PDF]

Ecol Evol
Here we explore the relationship between ITV, spatial and temporal environmental heterogeneity, and the breadth of species' environmental distributions for 33 tree species across eight sites across marked environmental gradients in Puerto Rico. Species with greater across‐site ITV in wood density and LMA occurred over broader ranges of potential ...
Arroyo E, Muscarella R, Uriarte M.
europepmc   +2 more sources

Honeybees Collecting Latex From Breadfruit (<i>Artocarpus altilis</i>) in Puerto Rico Reveal a Novel Interaction With Broad Eco-Evolutionary Implications. [PDF]

Ecol Evol
This article showcases a unique natural history observation of honeybees collecting latex from the breadfruit tree (Artocarpus altilis), both nonnative species in Puerto Rico. This represents a unique interaction and here we explore how this behavior may come about in novel ecosystems.
Santiago-Rosario LY, Santiago-Rosario JA, Snell-Rood EC.   +2 more
europepmc   +2 more sources

Cryopreservation of Byrsonima intermedia embryos followed by room temperature thawing [PDF]

, 2015
Byrsonima intermedia is a shrub from the Brazilian Cerrado with medicinal properties. The storage of biological material at ultra-low temperatures (-196°C) is termed cryopreservation and represents a promising technique for preserving plant diversity ...
Andre, E., Paiva, R., Panis, B., Silva, L.C., Swennen, Rony L.   +4 more
core   +1 more source

Selection of native trees for intercropping with coffee in the Atlantic Rainforest biome [PDF]

, 2010
A challenge in establishing agroforestry systems is ensuring that farmers are interested in the tree species, and are aware of how to adequately manage these species.
Bonfim, V.R., Cardoso, I.M., Carvalho, A.F., Fernandes, J.M., Garcia, F.C.P., Mendonca, E.S., Santos, A.C., Souza, H.N., de   +7 more
core   +1 more source

Naphthoquinone Derivatives and Lignans from the Paraguayan Crude Drug “Tayï Pytá” (Tabebuia heptaphylla, Bignoniaceae) [PDF]

, 2003
The Paraguayan crude drug “tayï pytá” is used to treat cancer, wounds and inflammation. It consist of the bark and trunkwood of Tabebuia heptaphylla (Bignoniaceae).
Papastergiou, Fani, Schmeda-Hirschmann, Guillermo   +1 more
core   +1 more source

Potential of X-ray computed tomography for 3D anatomical analysis and microdensitometrical assessment in wood research with focus on wood modification [PDF]

, 2013
Studying structure and chemistry of wood and wood-based materials is the backbone of all wood research and many techniques are at hand to do so. A very valuable modality is X-ray computed tomography (CT), able to non-destructively probe the three ...
Andersons, Bruno, Biziks, Vladimir, Boone, Matthieu, Brabant, Loes, De Witte, Yoni, Dierick, Manuel, Mahnert, Karl-Christian, Masschaele, Bert, Militz, Holger, Van Acker, Joris, Van den Bulcke, Jan, Van Hoorebeke, Luc, Van Loo, Denis, Vlassenbroeck, Jelle   +13 more
core   +1 more source

EFEITOS DA LUZ E DA TEMPERATURA NA GERMINAÇÃO DE SEMENTES DE Tabebuia serratifolia (Vahl) Nich, Tabebuia chrysotricha (Mart. ex DC.) Standl. E Tabebuia roseo-alba (Ridl) Sand - Bignoniaceae [PDF]

Ciência Florestal, 2005
As espécies de ipê (Tabebuia serratifolia, Tabebuia chrysotricha e Tabebuia roseo-alba) são árvores de interesse econômico madeireiro, ornamental e indicadas em programas de reflorestamentos.
Massanori Takaki, Viviana Yoshie Sugahara, Débora Leonardo dos Santos   +2 more
doaj  

Metabolic profiling of cytotoxic metabolites from five Tabebuia species supported by molecular correlation analysis

Scientific Reports, 2021
Tabebuia is the largest genus among the family Bignoniaceae. Tabebuia species are known for their high ornamental and curative value. Here, the cytotoxic potential of extracts from the leaves and stems of five Tabebuia species was analyzed.
Seham S. El-Hawary, Rabab Mohammed, Ahmed F. Tawfike, Sameh Fekry AbouZid, Marwa A. Taher, Usama Ramadan Abdelmohsen, Elham Amin   +6 more
doaj   +1 more source