Genetic Transformation
Mostrando 13-24 de 1243 artigos, teses e dissertações.
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13. Efficient and new method for Tectona grandis in vitro regeneration
Abstract The aim of this study was to develop a shoot regeneration protocol for Tectona grandis by examining the effects of pretreatments, regeneration culture medium, adventitious rooting, and acclimatization. The best organogenic potential was achieved when hypocotyls and cotyledonary segments from seedlings germinated on a medium containing TDZ, were cult
Crop Breed. Appl. Biotechnol.. Publicado em: 2017-06
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14. Use of microsatellites for evaluation of genetic diversity in cherry tomato
ABSTRACT Much of the diversity of tomato is found in wild forms, the most important being the Solanum lycopersicum L. var. cerasiforme and S. pimpinellifolium. The objective of this research was to assess the genetic diversity of 30 introductions of cherry tomato with 36 microsatellite molecular markers. The study was conducted at the Plant Transformation Re
Bragantia. Publicado em: 15/05/2017
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15. Establishment of an Embryonic Tip Regeneration System of Soybean
ABSTRACT In order to establish an optimal soybean embryonic tip regeneration system that can serve as soybean genetic transformation receptor, and be used for the study of genetic function verification, the influences of single factor on the adventitious bud of embryonic tip induction, elongation and rooting stage, are researched and compared.The single fact
Braz. arch. biol. technol.. Publicado em: 20/10/2016
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16. Epstein-Barr virus-positive gastric cancer: a distinct molecular subtype of the disease?
Abstract: Approximately 90% of the world population is infected by Epstein-Barr virus (EBV). Usually, it infects B lymphocytes, predisposing them to malignant transformation. Infection of epithelial cells occurs rarely, and it is estimated that about to 10% of gastric cancer patients harbor EBV in their malignant cells. Given that gastric cancer is the third
Rev. Soc. Bras. Med. Trop.. Publicado em: 2016-04
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17. Acetosyringone, pH and temperature effects on transient genetic transformation of immature embryos of Brazilian wheat genotypes by Agrobacterium tumefaciens
Abstract Low transformation efficiency is one of the main limiting factors in the establishment of genetic transformation of wheat via Agrobacterium tumefaciens. To determine more favorable conditions for T-DNA delivery and explant regeneration after infection, this study investigated combinations of acetosyringone concentration and pH variation in the inocu
Genet. Mol. Biol.. Publicado em: 03/11/2015
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18. Somatic embryogenesis and plant regeneration in Wedelia calendulacea Less. an endangered medicinal plant
In this work, plant regeneration via somatic embryogenesis was achieved from leaf and internode derived callus of Wedelia calendulacea, an endangered medicinal plant. Primary callus was induced by culturing leaf disc and internode explant on Murashige and Skoog medium supplemented with 2.0 mg L-1 of 2,4-D under light condition. Transfer of embryogenic callus
Braz. arch. biol. technol.. Publicado em: 2014-06
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19. Continuidad y cambios en una vieja democracia de partidos: Uruguay (1910-2010)
This article "revisits" the old Uruguayan party democracy - the eldest and one of the few in Latin America-reviewing wellknown contributions as well as my own proposals, to point out persistence and changes during the last century. Trying to avoid "exceptionalism", the text interweaves comparative references, which provide a framework for the originality of
Opin. Publica. Publicado em: 2013-11
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20. DsRed2 transient expression in Culex quinquefasciatus mosquitoes
Culex quinquefasciatus mosquitoes have been successfully genetically modified only once, despite the efforts of several laboratories to transform and establish a stable strain. We have developed a transient gene expression method, in Culex, that delivers plasmid DNA directly to the mosquito haemolymph and additional tissues. We were able to express DsRed2 f
Mem. Inst. Oswaldo Cruz. Publicado em: 2013-06
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21. Plant regeneration and Agrobacterium-mediated transformation of Achyranthes bidentata using cotton EREBP gene
The aim of this work was to study the plant regeneration and Agrobacterium-mediated transformation of Achyranthes bidentata using cotton EREBP gene. Results showed that the callus induction rate of stems from A. bidentata was the highest (100%) and bud was in approximately 70% of calli from stems. However bud differentiation rate of the callus from leaves an
Braz. arch. biol. technol.. Publicado em: 2013-06
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22. Cultura de tecidos e transformação genética de espécies da família Poaceae / Tissue culture and genetic transformation of Poaceae family species
Brachiaria é um gênero de forrageiras da família Poaceae que apresenta plantas que se reproduzem por via sexual e assexualmente por apomixia,reprodução por sementes. A apomixia desperta interesse biológico e biotecnológico, pela perspectiva de levar esta característica de clonagem de plantas via sementes, a outras espécies. As cultivares plantadas d
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/07/2012
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23. Avaliação de plantas transgênicas de laranja doce (Citrus sinensis) e transformação genética de laranja azeda (Citrus aurantium) para resistência ao Citrus tristeza virus (CTV) / Evaluation of sweet orange (Citrus sinensis) transgenic plants and genetic transformation of sour orange (Citrus aurantium) for the resistance to Citrus tristeza virus (CTV)
Citrus tristeza virus (CTV) ocorre em quase todas as áreas produtoras de citros do mundo. O controle da doença se baseia, principalmente, no uso de porta-enxertos tolerantes e na premunização das copas. A obtenção de copas de laranjas doces ou de porta-enxerto de laranja azeda transgênicos resistentes ao CTV permitiria retornar a um uso mais intensivo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/05/2012
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24. Transformação de espaços métricos otimizando a recuperação de imagens por conteúdo e avaliação por análise visual / Metric space transformation optimizing content-based image retrieval and visual analysis evaluation
O problema da descontinuidade semântica tem sido um dos principais focos de pesquisa no desenvolvimento de sistemas de recuperação de imagens baseada em conteúdo (CBIR). Neste contexto, as pesquisas mais promissoras focam principalmente na inferência de pesos de características contínuos e na seleção de características. Entretanto, os processos tra
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/01/2012