نتایج جستجو برای: bidens
تعداد نتایج: 636 فیلتر نتایج به سال:
The germination of three cerrado herbaceous species: Bidens gardneri, Vernonia herbacea (Asteraceae) and Psychotria barbiflora (Rubiaceae) was studied using seeds stored in cerrado soil and in refrigerator at 4°C. The field experiment was carried out at a preserved area of cerrado, the Reserva Biológica e Estação Experimental de Mogi-Guaçu, State of São Paulo, Brazil. The soil was collected in ...
In 2014 hairy beggarticks (Bidens pilosa L.) has been identified as being glyphosate-resistant in citrus orchards from Mexico. The target and non-target site mechanisms involved in the response to glyphosate of two resistant populations (R1 and R2) and one susceptible (S) were studied. Experiments of dose-response, shikimic acid accumulation, uptake-translocation, enzyme activity and 5-enolpyru...
Fifteen flavonoids, 1-7 and 9-16, and a polyacetylene, 8, were isolated from the ethanol extract of the dried whole plant of Bidens parviflora Willd. by various chromatographic techniques. Their structures have been elucidated on the basis of spectroscopic analyses and chemical studies. Compound 8 is new and was identified as 3-(R),8(E)-decene-4,6-diyne-1,3,10-triol. All the flavonoid compounds...
C. La Casa, M. J. Martin Calero, C. Alarcon de la Lastra, V. Motilva, M. J. Ayuso, C. Martin Cordero and A. Lopez Vergara Departamento de Farmacia y Tecnologfa Farmaceutica. Laboratorio de Farmacologfa, Faeultad de Farmacia, C/Prof. Garcia Gonzalez s/n. 41012-Sevilla. Spain Z. Naturforsch. 50c, 854-861 (1995); received June 1/August 15, 1995 Cytoprotection, Bidens aurea , Sulfhydryl Groups, Aur...
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