Genetically Modified Plants
Mostrando 25-36 de 61 artigos, teses e dissertações.
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25. IMPACTO DE ALGODÃO GENETICAMENTE MODIFICADO RESISTENTE A INSETOS SOBRE A ENTOMOFAUNA DE SOLO
A engenharia genética tem criado variedades geneticamente modificadas (GM) de muitos cultivos que expressam a toxina Cry da bactéria Bacillus thuringiensis Berliner (Bt). Essa toxina tem propriedades inseticidas e é sintetizada durante o crescimento da planta, podendo ser expressa em qualquer parte da mesma. Visando avaliar os impactos dessa tecnologia no
Publicado em: 2009
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26. Physiologic and agronomic evaluation of genetically modified soybean to improve drought tolerance / Avaliação fisiológica e agronômica de soja geneticamente modificada para maior tolerância à seca
A soja é uma das culturas com maior importância sócio-econômica no mundo, visto o complexo agro-industrial que movimenta. A ocorrência de períodos de seca durante a estação de desenvolvimento das lavouras de soja é muito freqüente, provocando reduções drásticas na produtividade. Sendo a seca um fator limitante de produção fora do controle dire
Publicado em: 2009
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27. Transgenic lettuce seedlings carrying hepatitis B virus antigen HBsAg
The obtainment of transgenic edible plants carrying recombinant antigens is a desired issue in search for economic alternatives viewing vaccine production. Here we report a strategy for genetic transformation of lettuce plants (Lactuca sativa L.) using the surface antigen HBsAg of hepatitis B virus. Transgenic lettuce seedlings were obtained through the appl
Brazilian Journal of Infectious Diseases. Publicado em: 2008-12
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28. Diversity and genetic characterization of endophytic microbial communities associated with sugarcane / Diversidade e caracterização genética de comunidades microbianas endofíticas associadas à cana-de-açúcar
In Brazil, the sugarcane is one of the most important cultivated crops. The sugarcane has received increased interest in the last years because of increase of the cultivated area and ethanol production to be used as biofuel. Considering its economical importance and the possibility of the use of the genetically modified plants; this crop has become the aim o
Publicado em: 2008
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29. Response of sweet orange transgenic plants to infection of Xanthomonas axonopodis pv. citri and Candidatus Liberibacter asiaticus / Resposta de plantas transgenicas de laranja doce (Citrus sinensis L. Osb.) a infecção por Xanthomonas axonopodis pv. citri e Candidatus Liberibacter asiaticus
Huanglongbing (HLB), also known as greening, is the world most important citrus disease and it is caused by the bacterium Candidatus Liberibacter spp. This disease was originated from China and Africa, where were discovered the variants Ca. L. asiaticus and Ca. L. africanus, respectively. In 2004, the disease was detected in Brazil, where the variants asiati
Publicado em: 2008
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30. Expressão de Cyanovirin-N, um Microbicida Anti-HIV, em Plantas
The Human immunodeficiency virus (HIV) is covered by an envelope from which proteins, specially the gp120, control its entering into susceptible cells. The HIV infection results in the Acquired Immunodeficiency Syndrome (AIDS), and in spite of the global efforts against its pandemic, the number of people with HIV increases every year. Heterosexual intercours
Publicado em: 2008
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31. Biosafety of Cry1Ac protein, synthesized by the genetically modified cotton, on stingless bees and honeybees / Biossegurança da proteína Cry1Ac, sintetizada pelo algodão geneticamente modificado, em abelhas indígenas sem ferrão e africanizadas
Genetic engineering techniques offer opportunities for the developement of insect-resistant plants due to the synthesis of entomotoxical proteins by plants. To evaluate the biosafety of GM cotton in relation to pollinators, bioassay methods were developed for rearing larvae of Trigona spinipes and Apis mellifera, bees commonly found in cotton flowers in Braz
Publicado em: 2008
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32. Characterization of endophytic, nitrogen-fixing bacteria isolated from Saccharum sp. (sugarcane) cultivated under organic fertilization or nitrogenated fertlization and no fertilization. / Caracterização de bactécias fixadoras de nitrogênio endofíticas isoladas de Saccharum sp. (cana-de-açúcar) cultivadas sob adubação orgânica ou fertilizante nitrogenado ou sem adubação.
In the present study, endophytic bacterial diversity has been searched using both microbiologic and molecular methods. Microorganisms were isolated from sugarcane root, shoot and leaf. 150 isolates were identified by 16S rDNA sequencing. 18 genera were found and only 4 were present in sugarcane submitted to the three treatments. The greatest genera diversity
Publicado em: 2008
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33. Screening of Bacillus thuringiensis strains toxic to the cotton aphid (Aphis gossypii) / Seleção de estirpes de Bacillus thuringiensis tóxicas ao pulgão do algodoeiro (Aphis gossypii)
The production of the cotton crop is growing and exposes this culture to severe attack of various pests, including the cotton aphid (Aphis gossypii). This insect has caused 44% loss to the culture of cotton, attacking the initial stages of the crop. The continuous sucking sap deforms the shoots, hampers the development of the plant and also expels a sugar se
Publicado em: 2008
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34. Propriedades bioquímicas e cinético-enzimáticas de cisteíno- proteases do intestino médio da lagarta da soja / Biochemistry and kinectics-enzymatics properties of cysteine-proteases of the velvetbean caterpillar midgut
Protease inhibitors that react with insect specific proteases are candidates to have their genetic code inserted in genetically modified plants. The first step to achieve this is the characterization of proteolytic enzymes of these insects intestines. Cysteine-protease of the soluble and insoluble fractions from the midgut of Anticarsia gemmatalis were chara
Publicado em: 2008
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35. APPLICATION OF HR-MAS NMR AND CHEMOMETRIC ANALYSIS FOR DETECTION AND EVALUATION OF GENETICALLY MODIFIED SOYBEAN (Glycine max) CROPS / Emprego da RMN HR-MAS e análises quimiométricas no reconhecimento e avaliação de soja (Glycine max) geneticamente modificada
The Biotechnology has made possible the development of genetically modified (GM) organisms, including soybean, main Brazilian agricultural product. These GM specimens has been produced by changing some original characteristics of plant in order to increase productivity and to reduce production costs. However, these novel organisms should be evaluated, in ord
Publicado em: 2005
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36. Crescimento e teor do Ãleo essencial de Aloysia triphylla (LÂHÃrit) britton (Verbenaceae), em funÃÃo da adubaÃÃo orgÃnica, sazonalidade, horÃrio de colheita e processamento pÃs-colheita / Growth and essential oil content of Aloysia triphylla (LâHÃrit) Britton (Verbenaceae), in function of organic manure, seasonal variation, harvest period of time and post-harvesting process.
The purpose of this work was to evaluate the organic manure influency, seasonal variation, harvest period of time and post-harvesting process in essential oil content of Aloysia triphylla (LâHÃrit) Britton (lemon verbena) in Lavras, MG. In all the experiments was used randomized complete design. Plants developed in field were under seasonal variation harve
Publicado em: 2005