Plant Cell Cultures
Mostrando 13-24 de 232 artigos, teses e dissertações.
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13. Produção de carotenoides em culturas in vitro de Cleome rosea Vahl ex DC (Capparaceae) e avaliação de sua toxicidade e potencial antioxidante / Carotenoid production in vitro cultures of Cleome rosea Vahl ex DC (Capparaceae) and evaluation of toxicity and antioxidant potential.
The production and optimization of plants secondary metabolites with medicinal value have been achieved by using plant tissue culture techniques, which have showed great relevance when considering the conservation status of a species or their occurrence in degraded environments. The present study assessed the production of carotenoids in callus and cell susp
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/02/2012
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14. Atividade imunoestimulante e anti-Leishmania de Chenopodium ambrosioides L. (mastruz). / And immunostimulatory activity of anti-Leishmania Chenopodium ambrosioides L. (mastruz).
Chenopodium ambrosioides a plant species popularly knows as mastruz, mastruço, menstruço or erva de Santa-Maria have been used to treat leishmaniasis in endemic areas of the Northestern of Brazil. The aim of this work was to evaluate the immunomodulatory and antileishmania effects of this plant. In order to investigate the effect on macrophage activity and
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/01/2012
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15. Bioactive extracts and chemical constituents of two endophytic strains of Fusarium oxysporum
Ethyl acetate extracts of cultures grown in liquid Czapek and on solid rice media of the fungal endophyte Fusarium oxysporum SS46 isolated from the medicinal plant Smallanthus sonchifolius (Poepp.) H. Rob., Asteraceae, exhibited considerable cytotoxic activity when tested in vitro against human cancer cells. Chromatographic separation yielded anhydrofusarubi
Rev. bras. farmacogn.. Publicado em: 18/09/2012
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16. Studies on trigonelline from Moringa oleifera and its in vitro regulation by feeding precursor in cell cultures
Trigonelline (N-methylnicotinate) biosynthesized from nicotinate is one of the metabolically active pyridine alkaloid, widely distributed in plant kingdom. In the present study trigonelline has been isolated from various plant parts and callus cultures of Moringa oleifera Lam., Moringaceae, and was identified using TLC, GLC, GC-MS, which was comparable to th
Rev. bras. farmacogn.. Publicado em: 03/04/2012
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17. Cell suspension culture and plant regeneration of a Brazilian plantain, cultivar Terra.
The objective of this study was to establish cell suspension culture and plant regeneration via somatic embryogenesis of a Brazilian plantain, cultivar Terra Maranhão, AAB. Immature male flowers were used as explant source for generating highly embryogenic cultures 45 days after inoculation, which were used for establishment of cell suspension culture and
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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18. Sucrose metabolizing enzymes in cell suspension cultures of Bauhinia forficata, Curcuma zedoaria and Phaseolus vulgaris.
The objective of this work was to study the activity of sucrose metabolizing enzymes in extracts of cell suspension cultures of Bauhinia forficata Link, Curcuma zedoaria Roscoe and Phaseolus vulgaris L. Invertase pathway was identified in the three studied species. Sucrose synthase pathway was also responsible for sucrose metabolism in Curcuma zedoaria and P
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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19. A Preliminary Evaluation of Cell and Tissue Culture Methods Suitable for Screening Anthrocnose Disease Reactions in Tropical Yams.
Effect of different temperatures (15, 19, 25 and 29 °C), media type (PDA and Czapek Dox agar) and light on sporulation of a Caribbean pathovar of Colletotrichum gloe-osporioides f.sp. dioscoreae were studied. Czapek Dox agar and temperature of 25 °C were found to be best conditions for supporting growth and sporulation of this organism. Long-term fungal cu
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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20. Genotoxic evaluation of an industrial effluent from an oil refinery using plant and animal bioassays
Polycyclic aromatic hydrocarbons (PAHs) are genotoxic chemicals commonly found in effluents from oil refineries. Bioassays using plants and cells cultures can be employed for assessing environmental safety and potential genotoxicity. In this study, the genotoxic potential of an oil refinery effluent was analyzed by means of micronucleus (MN) testing of Alium
Genetics and Molecular Biology. Publicado em: 29/01/2010
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21. Ação da doxiciclina e Artemisia annua L. em cultura de células DH82 infectadas com Ehrlichia canis: estudo ultraestrutural
The goal of this job was to evaluate the effect of the infusion of Artemisia annua L. plant in culture of Ehrlichia canis in DH82 cells, analyzing the ultra-structural alterations of this treatment against the canonical treatment with Doxycycline, seeking an efficient alternative for animals that cannot be treated with tetracycline and its products, furtherm
Publicado em: 2009
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22. Biotransformação de terpenóides por culturas de células vegetais e fungos filamentosos
Os estudos da biotransformação têm-se mostrado um método eficiente para reações que envolvam a obtenção de compostos com interesse comercial. Dentre estes produtos utilizados podemos destacar monoterpenos por constituírem uma variedade de compostos com grande aplicação tanto no âmbito farmacêutico, como em perfumes, cosméticos e alimentos. As s
Publicado em: 2007
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23. Análise da expressão de enterolobina em sementes e calos vegetais de Enterolobium contortisiliquum
Cytolytic toxins are produced by a variety of living organisms, particularly bacteria, certain insects, poisonous reptiles and stinging marine invertebrates. Many of these toxins appear to function simply by forming pores in cell membranes, disrupting the permeability barrier and leading eventually to cell death. However, few examples have been studied in pl
Publicado em: 2007
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24. Cytotoxicity of Marchantia convoluta leaf extracts to human liver and lung cancer cells
The cytotoxicity of three extracts (petroleum ether, ethyl acetate and n-butanol) from a plant used in folk medicine, Marchantia convoluta, to human non-small cell lung carcinoma (H1299) and liver carcinoma (HepG2) cell lines was tested. After 72-h incubation of lung and liver cancer cell cultures with varying concentrations of extracts (15 to 200 µg/mL), c
Brazilian Journal of Medical and Biological Research. Publicado em: 2006-06