Results 71 to 80 of about 1,918 (201)

Simalikalactone D is responsible for the antimalarial properties of an amazonian traditional remedy made with Quassia amara L. (Simaroubaceae) [PDF]

open access: yes, 2006
French Guiana (North-East Amazonia) records high malaria incidence rates. The traditional antimalarial remedy most widespread there is a simple tea made out from Quassia amara L. leaves (Simaroubaceae).
Jullian, Valérie   +12 more
core   +1 more source

Effect of Pest Control Strategies on Arthropod Pests of Apple in Europe: A Meta‐Analysis

open access: yesJournal of Applied Entomology, Volume 149, Issue 6, Page 957-987, July 2025.
ABSTRACT Apple (Malus domestica Borkh.) is a major fruit crop in Europe. More than 200 phytophagous arthropod species thrive in European apple orchards, several of which are economically important pests. Due to the pest pressure on apple production, consumer demand for residue‐free products and current policies to make food production in the European ...
Ingrid Aline Bapfubusa Niyibizi   +2 more
wiley   +1 more source

Avaliação do incremento em volume de madeira de Quassia amara L.- Simaroubaceae, em cultivo agroecológico no trópico úmido da Costa Rica Evaluation of wood volume increment in Quassia amara L. - Simaroubaceae, under agroecological cultivation in the humid tropic of Costa Rica

open access: yesRevista Brasileira de Plantas Medicinais, 2009
Quassia amara é arbusto de 3 a 6 metros de altura, tendo sido retirado indiscriminadamente das florestas para extrair do caule as quassinas usadas na indústria farmacêutica e como inseticida em agricultura orgânica.
R. Próspero   +3 more
doaj   +1 more source

Taxonomical and nomenclatural report on woody argentinian flora: Alvaradoa subovata (Simaroubaceae) and Roupala brasiliensis (Proteaceae) [PDF]

open access: yes, 1998
I. Rehabilitation of Alvaradoa subovata Cronquist (Simaroubaceae), the correct scientific name for the "pichi blanco". II. Roupala cataractarum Sleumer is a synonym of Roupala brasiliensis Klotzch (Proteaceae).
Xifreda, C.C., Sanso, A.M.
core   +3 more sources

20(R)- and 20(S)-Simarolide Epimers Isolated from Simaba cuneata: Chemical Shifts Assignment of Carbon and Hydrogen Atoms

open access: yesJournal of the Brazilian Chemical Society, 1999
The C25-quassinoids 20(R)- and 20(S)-simarolide were isolated from Simaba cuneata, Simaroubaceae. The structures of these two compounds were characterized by spectral data, including 1D and 2D NMR spectra which were also used for the complete assignment ...
Vieira Ivo José Curcino   +5 more
doaj  

Across 33 broad‐leaved deciduous woody species, silicon enhances leaf lamina stiffness but not tensile strength whereas cellulose enhances both

open access: yesNew Phytologist, Volume 246, Issue 5, Page 2075-2083, June 2025.
Summary Silicon (Si) has been hypothesized to be a metabolically cheaper substitute for carbon‐based cell wall components to support leaves. However, how the biomechanical function of Si, deposited as amorphous silica, differs from cell wall components remains untested. Here, we tested the hypothesis that species with higher leaf Si concentrations have
Hirofumi Kajino   +2 more
wiley   +1 more source

Chemical constituents of Simarouba versicolor

open access: yesAnais da Academia Brasileira de Ciências, 2002
From the roots, stems and fruits of Simarouba versicolor (Simaroubaceae) were isolated quassinoids (3, 5-7), triterpenoids (8-14), a mixture of steroids (15-17), the flavonoid kaempferol (18) and the squalene derivative 11,14-diacetoxy-7,10; 15,18 ...
ANGELA M.C. ARRIAGA   +8 more
doaj   +1 more source

Quassinoids and Their Biological Activity

open access: yesNatural Product Communications, 2007
Ailanthus is an important genus of the Simaroubaceae family that is widely distributed in Asia and north Australia, and which is used in folk medicines. The plants of this genus have numerous therapeutic applications and have, therefore, been the subject
Bipin Chandra Joshi   +2 more
doaj   +1 more source

Ocorrência e atividade biológica de quassinóides da última década Occurrence and biological activity of quassinoids in the last decade

open access: yesQuímica Nova, 2007
Quassinoids, the bitter principles of the Simaroubaceae family, are a group of structurally complex and highly oxygenated degraded triterpenes. They are divided into five groups according to their basic skeleton, C-18, C-19, C-20, C-22 and C-25.
Maria Mozarina Beserra Almeida   +5 more
doaj   +1 more source

Intoxicação experimental por Simarouba versicolor (Simaroubaceae) em ovinos e indução de resistência ao consumo da planta

open access: yesPesquisa Veterinária Brasileira, 2013
Simarouba versicolor é uma árvore semidecídua pertencente à família Simaroubaceae. Um surto de intoxicação por S. versicolor em bovinos por brotos da planta presente no pasto em Mato Grosso do Sul e sua reprodução experimental foram descritos.
Ariany C. Santos   +5 more
doaj   +1 more source

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