Kanamycin
Mostrando 13-24 de 1156 artigos, teses e dissertações.
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13. Desenvolvimento e avaliação de protocolos para descontaminação de explantes de mangueira visando à micropropagação.
RESUMO: A eliminação de microrganismos é uma condição essencial para o estabelecimento de um processo de regeneração in vitro, pois eles além de competirem pelos nutrientes também produzem toxinas que causam a morte do explante. O trabalho visou desenvolver metodologias de controle de crescimento de microrganismos provenientes de explantes de mangue
Planaltina. Publicado em: 2011
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14. Antimicrobial resistance and PCR-ribotyping of Shigella responsible for foodborne outbreaks occurred in southern Brazil
Little information about Shigella responsible for foodborne shigellosis is available in Brazil. The present study aimed to investigate the antimicrobial resistance and PCR-ribotyping patterns of Shigella isolates responsible for foodborne outbreaks occurred in Rio Grande do Sul State (RS), Southern Brazil in the period between 2003 and 2007. Shigella strains
Brazilian Journal of Microbiology. Publicado em: 2010-12
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15. Avaliação da possibilidade de ocorrência de transformação natural de Azospirillum brasilense com DNA de plantas contendo o gene de resistência à canamicina
(Avaliação da possibilidade de ocorrência de transformação natural de Azospirillum brasilense com DNA de plantas contendo o gene de resistência à canamicina) – Existe uma grande preocupação sobre a possibilidade de transferência horizontal de genes de resistência a antibióticos de plantas geneticamente transformadas para bactérias presentes no
Publicado em: 2010
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16. Development and evaluation of residual virulence of a mutant strain of Brucella Abortus / Desenvolvimento e avaliação da virulência residual de uma cepa mutante de Brucella abortus
Brucella spp. is an intracellular facultative gram-negative bacteria which is pathogenic for many species of mammals, causing brucelosis, a worldwide spread zoonosis. Therefore the search for more efficient alternatives of control, as the development of new strains that can be tested as potential immunogens, is necessary. In this study, we knockouted virB10
Publicado em: 2009
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17. Transformação genética de abobrinha-de-moita e melancia para resistência ao Papaya ringspot virus - type Watermelon e ao Zucchini yellow mosaic virus / Genetic transformation of zucchini squash and watermelon for resistance to Papaya ringspot virus - type W and Zucchini yellow mosaic virus
Diseases caused by the potyviruses Papaya ringspot virus - type Watermelon (PRSV-W) and Zucchini yellow mosaic virus (ZYMV) significantly reduce the yield and fruit quality of zucchini squash (Cucurbita pepo), watermelon (Citrullus lanatus), as well as other cucurbit crops in Brazil. The purpose of this work was to obtain zucchini squash and watermelon trans
Publicado em: 2009
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18. Resistência antimicrobiana em Salmonella Enteritidis isoladas de amostras clínicas e ambientais de frangos de corte e matrizes pesadas
The antimicrobial resistance of Salmonella Enteritidis strains isolated from clinical and environmental poultry samples in the Southern Brazil during the years of 1999, 2000 and 2001 was evaluated. Among the 79 isolated samples, 64 (81%) were resistant to at least one of the antimicrobial agents tested, showing 22 different resistance patterns. Tetracycline
Arquivo Brasileiro de Medicina Veterinária e Zootecnia. Publicado em: 2008-10
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19. Early colonization pattern of maize (Zea mays L. Poales, Poaceae) roots by Herbaspirillum seropedicae (Burkholderiales, Oxalobacteraceae)
The bacterium Herbaspirillum seropedicae is an endophytic diazotroph found in several plants, including economically important poaceous species. However, the mechanisms involved in the interaction between H. seropedicae and these plants are not completely characterized. We investigated the attachment of Herbaspirillum to maize roots and the invasion of the r
Genetics and Molecular Biology. Publicado em: 03/09/2008
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20. Morfogênese in vitro e transformação genética de citros mediada por Agrobacterium tumefaciens / Morphogenesis in vitro and Agrobacterium tumefaciens- mediated genetic transformation of citrus
Current protocols used for citrus genetic transformation have resulted in a low number of transgenic plants, furthermore, it used juvenile material which source of explants. Plants regenerated from these sources of explants have long juvenile periods for initial fruit production and are necessary many years for evaluation of the introduced characteristics of
Publicado em: 2008
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21. Influência de antibióticos na morfogênese in vitro, transformação genética e isolamento de RNA de urucum (Bixa orellana L.) / Influence of antibiotics on in vitro morphogenesis, genetic transformation and RNA isolation of annatto (Bixa orellana L.)
The manipulation of genes involved in carotenoid biosynthesis in Bixa orellana has been attempted with the objective of generating plants producing high content of a natural natural colorant, bixin, and studying the biosynthetic pathway for the accumulation of this unique carotenoid in annatto seeds. The biotechnology, by means of plant tissue culture techni
Publicado em: 2007
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22. Otimização do cultivo in vitro visando a transformação genética das cultivares brasileiras de alho (Allium sativum L.) / Optimization of in vitro culture aiming at genetic transformation of Brazilian garlic (Allium sativum L.) cultivars
Garlic (Allium sativum L.) breeding has been limited to clonal selection of mutant genotypes, since almost all the species germplasm is sterile, not flowering under standard culture conditions. Garlic sterility affects not only breeding but also directly influences production costs. Further, the requirement of vegetative propagation using small bulbs as prop
Publicado em: 2007
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23. Factor evaluations associated to in vitro regeneration of five cultivars of cassava / Avaliação de fatores associados à regeneração in vitro e transformação genético de cinco cultivares de mandioca
Cassava (Manihot esculenta Crantz) is one of the most important crops for human consumption. It is considered the fourth most important source of carbohydrates in the tropics. The increasing importance of the culture achieved during the last years, raised the interest in the improvement and development of new cassava varieties. Therefore, the aims of the pre
Publicado em: 2007
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24. Sweet orange (Citrus sinensis L. Osbeck) genetic transformation with the hrpN gene (harpin) and evaluation for citrus canker (Xanthomonas axonopodis pv. citri) resistance / Transformação genética de laranja doce (Citrus sinensis L. Osbeck) com o gene hrpN (harpina) e avaliação da resistência ao cancro cítrico (Xanthomonas axonopodis pv. citri)
The citrus industry has a great economic and social importance for Brazil, which is considered largest producer and orange juice exporter in the world. However, serious problems related to pathogens have affected citrus production and quality. With the development of genetic engineering and the characterization of genes related with plant disease resistance,
Publicado em: 2007