295 resultados para Casearia decandra Jacq


Relevância:

10.00% 10.00%

Publicador:

Resumo:

Piper L. (Piperaceae) é monofilético, com espécies de difícil distinção taxonômica, sendo necessários ferramentas que auxiliem a identificação interespecífica. Os objetivos do trabalho foram descrever os macropadrões e caracterizar in situ a composição química dos cristais caulinares e foliares de Piper arboreum Aubl. var. arboreum, P. callosum Ruiz & Pav. e P. tuberculatum Jacq., visando avaliar o uso dos cristais para a separação interespecífica. Para tanto, amostras foram submetidas à análise em microscopias de luz e eletrônica de varredura, microanálises espectroscópicas de raios-X por dispersão de energia e testes histoquímicos. Foram observados cristais prismáticos cuneiformes, tabulares, cúbicos e bipiramidais; ráfides; estiloides; drusas de cristais em bloco; rosetas cristalinas de estiloides e concrescências cristalinas. Foram descritos 15 macropadrões cristalinos reunidos em três categorias. Os cristais foram classificados quimicamente como: puros de oxalato de cálcio e misturas entre oxalatos e sulfatos e entre oxalatos, sulfatos e sílica. Rosetas cristalinas, concrescências cristalinas silicificadas e 14 dos 15 macropadrões cristalinos descritos são registros inéditos para inclusões biominerais de Piper e Piperaceae. Os macropadrões cristalinos caulinares e foliares observados são constitutivos e úteis à separação interespecífica das espécies estudadas. Ademais, os cristais desempenham funções relevantes para a autoecologia dos taxa de Piper analisados.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Pós-graduação em Agronomia (Proteção de Plantas) - FCA

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Relevância:

10.00% 10.00%

Publicador:

Resumo:

A presente invenção se refere aos compostos com ação moduladora sobre desordens proliferativas celulares com estruturas semelhantes às casearinas, especialmente a casearina X e formulações contendo os mesmos. Em particular, a casearina X, obtida de frações ativas obtidas de Casearia sylvestris demonstrara ação antitumoral, podendo ser utilizada na prevenção eou no tratamento de qualquer tipo de câncer eou tumores. A presente invenção também se refere aos métodos para obtenção de tais compostos.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

This study was carried out to evaluate the effects of four grazing heights under continuous stocking of Tanzânia grass (Panicum maximum Jacq. Cv. Tanzânia) on the stocking rate, performance and beef production per hectare. The experimental area was 12 hectares, divided into paddocks with one hectare each, with three replicates each (20, 40, 60 and 80 cm). There were three male Nellore bovines per paddock, adding animals as needed to adjust the desired heights in a completely randomized design. The stocking rate had a negative linear function of grazing heights in all seasons regarding yield per hectare, while the average daily gain showed opposite behavior. Apparently, Tanzânia grass heights between 40 and 60cm under continuous stocking enable good average daily weight gain in beef cattle, and high yield per hectare.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

This study compared the morphological and anatomical variations of the leaves of four shade-tolerant tree species Allophylus edulis (St.-Hil.) Radlk (Sapindaceae), Casearia sylvestris Sw. (Salicaceae), Cupania vernalis Cambess. (Sapindaceae) and Luehea divaricata Mart. (Malvaceae) from a fragment of Araucaria forest in two developmental stages. Morphological and anatomical traits, such as leaf and tissue thickness, leaf area, leaf dry mass, specific leaf area, leaf density and stomata density were measured from 30 leaves of each developmental stage. The phenotypic plasticity index was also calculated for each quantitative trait. The results showed that the four species presented higher mean values ​​for specific leaf area and spongy/palisade parenchyma ratio at young stage, and higher mean values ​​for stomata density, total and palisade parenchyma thickness in the adult stage. The plasticity index demonstrated that L. divricata presented highest plasticity for both the morphological and anatomical traits while A. edulis displayed the lowest plasticity index. The results of this study indicated that the leaves of these species exhibited distinct morphological traits at each stage of development to cope with acting environmental factors.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Pós-graduação em Agronomia (Proteção de Plantas) - FCA

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Relevância:

10.00% 10.00%

Publicador:

Resumo:

This work deals with present and discuss mainly the chemical composition and pharmacological activities of each species of the National List of Medicinal plants of interest to SUS (RENISUS) contained in scientific articles that are found in the Bauru-SP region. Such information compiled in this study may help in the advancement of scientific research, promoting the speed in bibliographic queries these species. In the present work was carried out consultation papers and described in the form of literature review, published information of the species listed in Renisus specific to the Bauru-SP region are: Aloe spp* (A. vera or A. barbadensis), Schinus terebinthifolius = mastic Schinus, trimera Baccharis, Mikania spp* (M. glomerata and M. laevigata), Vernonia condensata, Tabebuia avellanedeae, Chenopodium ambrosioides, Momordica charantia, Phyllanthus spp* (P. amarus, P. niruri, P. tenellus and P. urinaria), Stryphnodendron adstringens = Stryphnodendron barbatimam, pulegium Mentha, Mentha spp* (M. crispa, M. piperita or M. villosa), Plectranthus barbatus = Coleus barbatus, Persea spp* (gratissima or P. americana P.), Bauhinia spp* (B. affinis, B. forficata or B. variegata), Copaifera spp*, Morus sp*, Eugenia uniflora or brasiliana Myrtus*, Psidium guajava, Syzygium spp* (S. jambolanum or S. cumini), Passiflora spp* (P. alata, P. edulis or P. incarnata), Punica granatum and Casearia sylvestris. Studies have shown that the use of plants as alternatives treatment and sustainable use of Brazilian biodiversity has a breakthrough in research regarding the chemical composition of each species of RENISUS relationship. Many phytochemical studies are reported compiled with possible pharmacological indications of each species. Thus enabling the use and production of herbal medicines in SUS

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Pós-graduação em Agronomia (Horticultura) - FCA

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Pós-graduação em Agronomia (Horticultura) - FCA

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Acrocomia aculeata (Jacq.) Lodd. ex Mart. is a plant species commonly used as a foodstuff and also for treating diseases, since it contains high concentrations of antioxidant compounds and monounsaturated fatty acids. Considering its ethnopharmacological relevance, the aim of the present study was to assess the cytotoxic, genotoxic, and mutagenic effects of an oil extracted from the pulp of A. aculeata (OPAC) in rats. In addition, a chromatographic characterization of the fatty acids present in OPAC was performed. Male and female Wistar rats were treated orally with 125, 250, 500, 1000, or 2000 mg/kg/body weight OPAC. The effects of OPAC ingestion were determined by performing the comet assay and micronucleus test. The comet assay data demonstrated that OPAC did not increase the frequency or rate of DNA damage in groups treated with any of the concentrations assessed compared to that in the negative control group. In the micronucleus test, the animals treated did not exhibit any cytotoxic or mutagenic changes in peripheral blood erythrocytes. The results demonstrated that OPAC did not exhibit cytotoxic, genotoxic, or mutagenic effects in Wistar rats, thereby increasing the evidence for the safety of oil extracted from this plant.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)