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Showing 1 to 20 of 39 for “"Euphorbia"”.
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Meccanismo catalitico della perossidasi da Euphorbia characias
… isolated from the latex of Mediterranean shrub Euphorbia characias (ELP), has peculiar features with respect to the other eme-peroxidases. In fact ELP is the first example of peroxidase that responds as an on/off switch to variation in the external Ca2+ level and represents the first peroxidase …
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Studio di componenti del lattice di Euphorbia characias
… fluid exudated from the Mediterranean shrub Euphorbia characias. The antioxidant and acetylcholinesterase inhibitory activities were explored in E. characias. The latex was extracted using several conventional methods and a new procedure involving the use of the trichloroacetic acid. The …
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Asymptomatic infections of Euphorbia lathyris by Macrophomina phaseolina.
In November of 1984 and 1985, Euphorbia lathyris was planted into a field naturally infested with Macrophomina phaseolina located at the Campbell Avenue Farm in Tucson, Arizona. Plants without foliar symptoms and rhizosphere soil were sampled regularly from emergence until the following May or …
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Consequences of interaction between the native ant community and an invasive plant (Euphorbia esula)
… of interaction between an invasive plant (Euphorbia esula L., Euphorbiaceae) and the native ant community during both the seed and flowering plant stages, and (2) how both the ant and plant benefit from myrmecochory (ant-mediated seed dispersal). My research had three main objectives: (1) …
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Manejo de Euphorbia davidii Subils : dinámica poblacional, control químico y evaluación de sensibilidad a glifosato
Euphorbia davidii, es una maleza anual de ciclo primavero – estival presente en los cultivos de verano en el centro y sudeste de la provincia de Buenos Aires. Para su estudio se abordaron aspectos relativos a su dinámica poblacional y se analizaron factores que pueden afectar su control con …
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Factors associated with the decline of Euphorbia ingens in the Limpopo Province of South Africa
The genus Euphorbia consists of a group of plants with a diverse morphology occurring all over the world. In South Africa species of the succulent Euphorbia trees are mostly found in the Northern provinces with Euphorbia ingens being the largest. In the last 10 years, symptoms of the disease have …
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Synthesis of glycolipids inspired by Fucus distichus and natural product isolation and characterization of Euphorbia lancifolia
… an investigation into the major constituents of Euphorbia lancifolia (Ixbut) was undertaken. Although there have been no in-depth reported chemical studies of E. lancifolia to date, traditional medicine in Latin America claims that the plant leaves can be used in herbal tea as a galactogogue, a …
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Molecular and morphological phylogenetic analyses of Euphorbia L. (Euphorbiaceae) with an emphasis on Southern African representatives
The genus Euphorbia is morphologically diverse and nearly cosmopolitan. Both succulent and non-succulent species are found within the genus. Succulent species are found in most arid and semi-arid areas of the world, but show their greatest concentration and diversity of form in Southern Africa …
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Lemur catta in the Region of Cap Sainte-Marie, Madagascar: Introduced cacti, xerophytic Didiereaceae-Euphorbia bush, and tombs
… environments: in xerophytic Didiereaceae-<italic>Euphorbia</italic>, bush habitat that represents over 90% of this species' potential range. Moreover, this study is the first to document ring-tailed lemurs, or any primate species for that matter, as cactus dwellers. Data were collected for 15 …
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Nucleotide pirofosfatasi/fosfodiesterasi dal lattice di Euphorbia characias e dai frutti di Opuntia ficus indica: purificazione e caratterizzazione
… pyrophosphatase/phosphodiesterase purified from Euphorbia characias latex (ELNPP) and from prickly pear (Opuntia ficus indica) fruits (ONPP). ELNPP has a molecular mass of 80 kDa and is formed by two apparently identical subunits, each containing 1 Ca2+ and 1 Mg2+ ion. ONPP is a homodimeric …
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Antiproliferative activities of Euphorbia bicolor (euphorbiaceae) and Maclura pomifera (moraceae) extracts on estrogen receptor-positive and triple-negative breast cancer cell lines
… from two native plants, Maclura pomifera and Euphorbia bicolor, in breast cancer cell lines. Maclura pomifera, a dioecious tree native to the south-central USA, showed significant antiproliferative effects in estrogen receptor positive MCF-7 and T47D breast cancer cells. Extracts of both male …
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Interplay between competition and evolution in invaded and native plant communities
… complex ecological interactions between Euphorbia esula, an invasive plant, and Balsamorrhiza sagittata, a native plant. I found that direct negative effects of Euphorbia on Balsamorrhiza, due to competition, were greatly reduced by indirect positive effects. In the second chapter, I …
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Interplay between competition and evolution in invaded and native plant communities
… complex ecological interactions between Euphorbia esula, an invasive plant, and Balsamorrhiza sagittata, a native plant. I found that direct negative effects of Euphorbia on Balsamorrhiza, due to competition, were greatly reduced by indirect positive effects. In the second chapter, I …
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Ecology and Molecular Phylogenetics of <i>Hydnora</i> (Hydnoraceae) in Southern Africa
… aqueous root extracts of host and non-host <em>Euphorbia</em> spp. were applied to seeds of <em>Hydnora triceps</em> which germinated only in response to root extracts of its exclusive host, <em>Euphorbia dregeana</em>, and not for co-occurring non-host <em>Euphorbia</em> spp. This pattern of …
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Diterpenes as models for the study of their effect on neural progenitor cells and on cytochrome p-450 enzymes
… requirement for its activity. In this context, Euphorbia resinifera was selected based on its well-known potential as a source of secondary metabolites, mainly diterpenes. Exhaustive studies of the spectroscopic and spectrometric data were explored following two basic axes: 1- Phytochemical …
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Efficacy of Hercides for weed control in soyabean(glycine max)under a no-Tillage cultivation system in Zambia
… and second flush of weeds respectively. However, Euphorbia heterophylla recovered from the application of paraquat whereby the new shoots emerged from the lower nodes. All preemergence herbicides gave a season-long control of Nicandra physalodes. The infestation of other weeds was very low that …
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Evaluación de las propiedades antimicrobiana, antiparasitaria, diurética y citotóxica de especies medicinales nativas del género Euphorbia : E. serpens Kunth, E. schickendantzii Hieron y E. collina Phil., caracterización de los metabolitos bioactivos
… vegetales empleadas por la medicina tradicional: Euphorbia serpens, E. schickendantzii y E. collina, para evaluar la presencia de actividad, diurética, antiparasitaria, citotóxica y antimicrobiana, e identificar y aislar el/los principio/s activo/s. Del material vegetal desecado se realizaron …
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La piel de la arquitectura de tierra. Sustancias naturales al servicio de la restauración de superficies del patrimonio vernáculo edificado
… specimens to be essays with latex from the plant Euphorbia balsamífera. Once the biopolymer has been properly applied in the original wall, a sample was removed for testing by scientific methods, such as the Infrared Spectroscopy, Raman, FTIR, Scanning Electron Microscopy (SEM), X-ray Diffraction …
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