Results 51 to 60 of about 1,229 (167)

Flora das cangas da Serra dos Carajás, Pará, Brasil: Simaroubaceae

Rodriguésia
Resumo Simaroubaceae está representada na Serra dos Carajás por duas espécies pertencentes a Simaba (S. cedron e S. guianensis) e uma a Simarouba (S. amara).
Marcelo Fernando Devecchi, José Rubens Pirani   +1 more
doaj   +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

Revista 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, L.C. Ming, R.D. Rojas, R.A. Ocampo   +3 more
doaj   +1 more source

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

Journal 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, Pia Addison, Klaus Birkhofer   +2 more
wiley   +1 more source

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

Journal 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, Braz Filho Raimundo, Rodrigues Filho Edson, Vieira Paulo Cezar, Silva Maria Fátima G.F. da, Fernandes João Batista   +5 more
doaj  

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

New 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, Yusuke Onoda, Kaoru Kitajima   +2 more
wiley   +1 more source

Chemical constituents of Simarouba versicolor

Anais 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, ALDENOR C. DE MESQUITA, YVONE B.M. POULIQUEN, ROBERTO A. DE LIMA, SERGIO H. CAVALCANTE, MARIO G. DE CARVALHO, JOSÉ A. DE SIQUEIRA, LEILA V. ALEGRIO, RAIMUNDO BRAZ-FILHO   +8 more
doaj   +1 more source

Quassinoids and Their Biological Activity

Natural 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, Ram Prakash Sharma, Anakshi Khare   +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

Química 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, Ângela Martha Campos Arriaga, Allana Kellen Lima dos Santos, Telma L. G. Lemos, Raimundo Braz-Filho, Ivo J. Curcino Vieira   +5 more
doaj   +1 more source

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

Pesquisa 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, Tatiane C. Faccin, Nilton M. Carvalho, Paula V. Leal, Arnildo Pott, Ricardo A. A. Lemos   +5 more
doaj   +1 more source

Estudio de genotoxicidad de Picrasma crenata (Vell.) Engl. -Simaroubaceae- Genotoxicity study on Picrasma crenata (Vell.) Engl.-Simaroubaceae-

Acta Toxicológica Argentina, 2007
En la medicina popular se utiliza el leño de Picrasma crenata en infusión como pediculicida y como tónico amargo no astringente. Los principios activos responsables de la actividad son los quasinoides.
Roxana M. Roldán, Maria F. Noriega, Marcelo L. Wagner, Alberto A. Gurni, Graciela B. Bassols   +4 more
doaj