Results 81 to 90 of about 12,097 (227)

Wood volume and biomass of a fragment of the Mata Atlântica at Santa Maria de Jetibá county, state of Espirito Santo, Brazil [PDF]

, 2012
Este trabalho teve como objetivo avaliar a florística, volume e biomassa em duas áreas de Mata Atlântica. Essas áreas estão localizadas na Reserva Biológica Sítio Palmares, no município de Santa Maria de Jetibá, Espírito Santo.
Conceição, Cláudio de Almeida, Imaña Encinas, José, Paula, José Elias de   +2 more
core  

Multiplicação in vitro de Aspidosperma ramiflorum Muell. Arg. (Apocynaceae) = In vitro multiplication of Aspidosperma ramiflorum Muell. Arg. (Apocynaceae)

Acta Scientiarum. Health Sciences, 2007
O presente estudo relata um método simples e promissor para multiplicação in vitro de Aspidosperma ramiflorum, uma espécie encontrada no sudeste do Brasil e seriamente ameaçada de extinção, utilizada com propósitos medicinais e como fonte de compostos ...
Heltion Ivan Hubner, Luiz Vieira da Silva, Idivaldo Capatti, Elisângela Fumagali, Eliezer Rodrigues de Souto, Regina Aparecida Correia Gonçalves, Arildo José Braz de Oliveira   +6 more
doaj  

Excelsinidine, A Quaternary Alkaloid from

Natural Product Communications, 2007
A chemical investigation of Aspidosperma excelsum yielded excelsinidine ( 1 ), a quaternary indole alkaloid possessing an unusual 1-azoniatricyclo[4.3.3.0]undecane moiety, along with the known compound aspidodasycarpine ( 2 ).
Tanya H. Layne, Stewart McLean, William F. Reynolds, Winston F. Tinto   +3 more
doaj   +1 more source

NATURAL DECAY RESISTANCE OF SIX AMAZON WOOD SPECIES IN SOIL BLOCK TESTS

Ciência Florestal, 2010
This study evaluated the natural resistance of six Amazonian wood species: Aspidosperma desmanthum (Araracanga), Parinari excelsa (Parinari), Mouriri callocarpa (Miraúba), Marmaroxylon racemosum (Angelim-rajado), Peltogyne paniculata (Roxinho) e ...
Marcus Vinicius da Silva Alves, Alexandre Florian da Costa, Daniele da Silva Espig, Ailton Teixeira do Vale   +3 more
doaj   +1 more source

Guía para una excursión botánica en las Sierras de Córdoba [PDF]

, 2010
Se presenta una guía para una excursión botánica a través de las Sierras Grandes, llanos y valles del oeste de Córdoba. Se visitan diferentes pisos de vegetación del Distrito Chaqueño Serrano y parte de los bosques xerófilos de llanura del Distrito ...
Cabido, Marcelo Ruben, Giorgis, Melisa Adriana, Tourn, Monica   +2 more
core  

Pseudophacopteron longicaudatum (Hemiptera) induces intralaminar leaf galls on Aspidosperma tomentosum (Apocynaceae): a qualitative and quantitative structural overview.

Anais da Academia Brasileira de Ciências, 2020
The structural complexity of galls depends on species-specific interaction driven by the galling taxa. However, the host plant and environment stressors can impose limits on gall developmental patterns and impact the establishment of gall morphology ...
D. C. Oliveira, V. Martini, A. S. Moreira, L. Fuzaro, LetÍcia A GonÇalves   +4 more
semanticscholar   +1 more source

L‐quebrachitol Modulates the Anti‐convulsant Effects of Carbamazepine Possibly Through Voltage‐gated Sodium Channel Blocking Mechanism in Chicks: In Vivo and In Silico Studies

Brain and Behavior, Volume 15, Issue 7, July 2025.
L‐quebrachitol exhibited significant anticonvulsant effects in PTZ‐induced seizures in chicks, likely through voltage‐gated sodium channel inhibition. In vivo and in silico analyses suggest LQB may synergize with carbamazepine, offering a potential new therapeutic approach for epilepsy management. ABSTRACT Introduction L‐Quebrachitol (LQB), a naturally
Asifa Asrafi, Mohammad Aslam, Ali G. Alkhathami, Md. Sakib Hossain, Imam Hossen Rakib, Md. Sakib Al Hasan, Feroz Khan Nun, Md. Faisal Amin, Muhammad Torequl Islam   +8 more
wiley   +1 more source

Synthesis of the Aspidosperma Alkaloid Na-Formyl-16-α-Hydroxyaspidospermidine

Molecules, 2001
The first total synthesis of Na-formyl-16α-hydroxyaspidospermidine and its isomer via (±)-vincadifformine is described and their structure elucidation using different methods of analysis is reported.
Abdelhamid Belattar, Fatiha Belferdi
doaj   +1 more source

Comparação de espécies nativas, em plantio em linhas em capoeira, na região de Irati-PR, resultados aos sete anos. [PDF]

, 2015
Trata-se de um ensaio de espécies florestais nativas (fase eliminatória), em plantio sob cobertura, em linhas, em capoeira (10 a 14 m de altura), na Floresta Nacional de Irati, em Teixeira Soares, PR, sete anos após o plantio, envolvendo onze espécies ...
CARVALHO, P. E. R.
core  

Solution of the multistep pathway for assembly of corynanthean, strychnos, iboga, and aspidosperma monoterpenoid indole alkaloids from 19E-geissoschizine

Proceedings of the National Academy of Sciences of the United States of America, 2018
Significance The multistep assembly of catharanthine and tabersonine from strictosidine remains poorly characterized for understanding the biochemistry of anticancer monoterpenoid indole alkaloid (MIA) biosynthesis in the medicinal plant, Catharanthus ...
Yang Qu, Michael L. A. E. Easson, R. Simionescu, J. Hájíček, A. Thamm, V. Salim, V. De Luca   +6 more
semanticscholar   +1 more source