Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 34
Primeira ... 12 ... Última
Imagem não selecionada

Imprime registro no formato completo
A simple and reliable method for the screening of transgenic tobacco plants PAB
Freitas-Astua,Juliana; Astua-Monge,Gustavo; Polston,Jane Elisabeth; Hiebert,Ernest.
Even though much improvement has been made in plant transformation methods, the screening of transgenic plants is often a laborious work. Most approaches for detecting the transgene in transformed plants are still timeconsuming, and can be quite expensive. The objective of this study was to search for a simpler method to screen for transgenic plants. The infiltration of kanamycin (100 mg/mL) into tobacco leaves resulted in conspicuous chlorotic spots on the non-transgenic plant leaves, while no spots were seen on the leaves of transformed plants. This reaction occurred regardless of age of the tested plants, and the method has proven to be simple, fast, non-destructive, relatively cheap, and reliable. These results were comparable to those obtained by the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Kanamycin; Genetically modified organisms; Transgenic plants; Testing.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2003000700015
Imagem não selecionada

Imprime registro no formato completo
Agricultural Sustainability and the Introduction of Genetically Modified Organisms (GMOs) AgEcon
Tisdell, Clement A..
In order to cater for the predicted growth in global population and aspirations for increased living standards, the world needs to increase substantially its level of agricultural production and sustain agriculture’s increased productivity. New technologies may enable this to occur but they also bring with them increased sustainability problems. There are many complex dimensions to achieving agricultural sustainability such as deciding on what agricultural attributes are worth sustaining and considering what trade-offs in objectives are required. These issues are discussed from a conceptual point of view. It is also shown using economic theory that market-based agriculture limits the opportunity for individual farmers to adopt sustainable agricultural...
Tipo: Working or Discussion Paper Palavras-chave: Agricultural development; Agricultural sustainability; Biodiversity; Co-evolution; Economic sustainability; Genetically modified organisms; GMOs; Monopolisation; Patents; Social sustainability.; Agricultural and Food Policy; Environmental Economics and Policy; Q000; Q010; Q200; Q300; Q500; Q570.
Ano: 2009 URL: http://purl.umn.edu/55335
Imagem não selecionada

Imprime registro no formato completo
AN INITIAL LOOK AT THE TOKYO GRAIN EXCHANGE NON-GMO SOYBEAN CONTRACT AgEcon
Parcell, Joseph L..
Genetically modified organisms (GMOs) such as soybeans and corn have garnered considerable consumer attention due to the concern over potential effects from using these commodities as inputs into food production. In the simplest form, segregation of bioengineered and non-bioengineered crops is an identity-preserved system. For these identity-preserved systems to exist, there must be a market discovery mechanism in place whereby supply and demand factors interact to establish a market price. In May 2000, the Tokyo Grain Exchange began a nongenetically modified organism (non-GMO) soybean contract. This article describes information garnered from the first public-offered identity-preserved marketplace.
Tipo: Journal Article Palavras-chave: Biotechnology; Genetically modified organisms; Identity-preserved markets; Non-GMO; Soybean contract; Tokyo Grain Exchange; Marketing.
Ano: 2001 URL: http://purl.umn.edu/14684
Imagem não selecionada

Imprime registro no formato completo
Are good ideas enough?: The impact of socio-economic and regulatory factors on GMO commercialisation Biol. Res.
Vàzquez-Salat,Núria.
In recent years scientific literature has seen an increase in publications describing new transgenic applications. Although technically-sound, these promising developments might not necessarily translate into products available to the consumer. This article highlights the impact of external factors on the commercial viability of Genetically Modified (GM) animals in the pharmaceutical and food sectors. Through the division of the production chain into three Policy Domains -Science, Market and Public- I present an overview of the broad range of regulatory and socio-economic components that impacts on the path towards commercialisation of GM animals. To further illustrate the unique combination of forces that influence each application, I provide an in-depth...
Tipo: Journal article Palavras-chave: Genetically modified organisms; GM animals; Policy domains; Governance; Socio-economic factors.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602013000400002
Imagem não selecionada

Imprime registro no formato completo
Biological characteristics of black armyworm Spodoptera cosmioides on genetically modified soybean and corn crops that express insecticide Cry proteins Rev. Bras. entomol.
Silva,Gabriela Vieira; de Freitas Bueno,Adeney; Bortolotto,Orcial Ceolin; dos Santos,Antônio César; Pomari-Fernandes,Aline.
ABSTRACT This study aimed to evaluate the development and reproduction of the black armyworm, Spodoptera cosmioides when larvae fed on leaves of Bt-corn hybrids, expressing a single Cry1F and also Cry1F, Cry1A.105 and Cry2Ab2 in pyramided corn and their non-Bt-isoline (hybrid 2B688), as well as on leaves of two soybean isolines expressing the Cry1Ac protein and its non-Bt isoline (A5547-227). We also assessed the effect of these Bt and non-Bt plants on the leaf consumption rate of S. cosmioides larvae. This pest was unable to develop when fed on any of the corn isolines (Bt and non-Bt). When both 1st and 3rd instar larvae were fed on corn leaf, mortality was 100% in both Bt and non-Bt corn. In contrast, when corn leaves were offered to 5th instar larvae,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Black armyworm; Genetically modified organisms; Non-target pests; Plant resistance.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262016000300255
Imagem não selecionada

Imprime registro no formato completo
BIOTECHNOLOGY IN AGRICULTURE: IMPLICATIONS FOR FARM-LEVEL RISK MANAGEMENT AgEcon
Makki, Shiva S.; Somwaru, Agapi; Harwood, Joy L..
This study examines the risks associated with adoption of biotech crops and discusses their implications for risk management at the farm level. We develop an analytical risk evaluation matrix framework to illustrate changes in production and marketing risks of biotech and non-biotech crops. Price uncertainty generated by consumer concerns is the major risk facing biotech farmers, while cross-pollination with biotech crops and preservation of non-biotech status are major concerns for non-biotech farmers. Improved market infrastructure to handle biotech products and modification of the current risk management tools to accommodate new risks are essential in reducing the farm-level risks.
Tipo: Journal Article Palavras-chave: Biotechnology; Genetically modified organisms; Marketing risks; Production risks; Risk evaluation matrix; Risk management; Research and Development/Tech Change/Emerging Technologies; Risk and Uncertainty.
Ano: 2001 URL: http://purl.umn.edu/14683
Imagem não selecionada

Imprime registro no formato completo
Biotech--Who Wins? Economic Benefits and Costs of Biotechnology Innovations in Agriculture AgEcon
Moschini, GianCarlo.
The conceptual model necessary for an assessment of biotechnology's economic benefits and costs is outlined, emphasizing the need to account for the proprietary nature of biotechnology innovations. The model is illustrated with an application to Roundup Ready soybeans. The estimated value of this innovation is sizeable, with consumers and innovators claiming the largest shares of net benefits. Also, disparities in intellectual property rights protection across countries affect the distribution of benefits. Consumer resistance toward GMOs and the issue of labelling and market segregation complicate the economic evaluation of biotechnology innovations; a number of related regulation and public policy issues are discussed. Emerging output-trait GMOs are...
Tipo: Journal Article Palavras-chave: Biotechnology; Genetically modified organisms; Identity preservation; Intellectual property rights; R&D; Transgenic crops; Welfare evaluation; Research and Development/Tech Change/Emerging Technologies.
Ano: 2001 URL: http://purl.umn.edu/23862
Imagem não selecionada

Imprime registro no formato completo
Bt protein rhizosecreted from transgenic maize does not accumulate in soil Electron. J. Biotechnol.
Margarit,Ezequiel; Reggiardo,Martín I; Permingeat,Hugo R.
The persistence of CryIAb protein rhizosecreted in soil is important in the assessment of its environmental risk. Here we report that CryIAb protein from transgenic maize does not accumulate at high levels in soils. Levels of CryIAb protein rhizosecreted by three maize transgenic events (BT11, MON810 and 176) were studied in hydroponic cultures and found only in the MON810 and BT11 events but not in event 176 or control plants. Under field conditions, the cryIAb gene and a basal level of CryIAb protein was detected in soils from plots cultivated with transgenic and non-transgenic maize, possibly from Bacillus thuringiensis present in the soils.
Tipo: Journal article Palavras-chave: CryIAb gene; CryIAb protein; ELISA; Genetically modified organisms; PCR; Zea mays (L.).
Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582008000200004
Imagem não selecionada

Imprime registro no formato completo
Comparative analysis of the national biosafety regulatory systems in East Africa AgEcon
Jaffe, Gregory.
This paper analyzes the current and proposed biosafety systems in Kenya, Tanzania, and Uganda using a set of components and characteristics common to functional and protective biosafety regulatory systems. It also assesses how those systems take into account the major international legal obligations that relate to biosafety, such the Cartagena Biosafety Protocol. The paper identifies certain areas in each country’s biosafety regulatory systems where further development and clarification would improve the biosafety system, making it more functional and protective. Those areas include: (1) the addition of procedures to ensure the food safety of genetically engineered organisms; (2) the inclusion of the standard and criteria for making an approval decision;...
Tipo: Report Palavras-chave: Biosafety; Food safety; Genetically modified organisms; Genetic engineering; Regulatory systems; Food Consumption/Nutrition/Food Safety.
Ano: 2006 URL: http://purl.umn.edu/55425
Imagem não selecionada

Imprime registro no formato completo
COSTS AND RISKS OF TESTING AND SEGREGATING GM WHEAT AgEcon
Wilson, William W.; Dahl, Bruce L..
Development of genetically modified crops is challenging the functions of the grain marketing system with many participants arguing for Identity Preservation systems prior to release of GM varieties. In this study, a stochastic optimization model was developed to determine optimal testing strategies. The model chooses the optimal testing strategy that maximizes utility (minimizes disutility) of additional system costs due to testing and rejection and allows estimation of the risk premium required for sellers to undertake a dual marketing system with GM/Non-GM segregations over the current Non-GM system. Elements of costs (testing costs, rejection costs, and risk premium) were estimated for a base model representing a grain export chain. The model...
Tipo: Working or Discussion Paper Palavras-chave: Genetically modified organisms; Biotechnology; Wheat; Risk; Segregation; Identity preservation; Crop Production/Industries.
Ano: 2002 URL: http://purl.umn.edu/23480
Imagem não selecionada

Imprime registro no formato completo
COSTS AND RISKS OF TESTING AND SEGREGATING GM WHEAT - SUMMARY AgEcon
Wilson, William W.; Dahl, Bruce L..
Development of genetically modified crops is challenging the functions of the grain marketing system with many participants arguing for Identity Preservation (IP) systems prior to release of GM varieties. In this study, a stochastic optimization model was developed to determine optimal testing strategies. The model chooses the optimal testing strategy that maximizes utility (minimizes disutility) of additional system costs due to testing and rejection and allows estimation of the risk premium required for sellers to undertake a dual marketing system with GM/Non-GM segregations over the current Non-GM system. Elements of costs (testing costs, rejection costs, and risk premium) were estimated for a base model representing a grain export chain. The model...
Tipo: Working or Discussion Paper Palavras-chave: Genetically modified organisms; Biotechnology; Wheat; Risk; Segregation; Identity preservation; Crop Production/Industries.
Ano: 2002 URL: http://purl.umn.edu/23502
Imagem não selecionada

Imprime registro no formato completo
Economic Benefits and Costs of Biotechnology Innovations in Agriculture AgEcon
Moschini, GianCarlo.
The conceptual model necessary for an assessment of biotechnology's economic benefits and costs is outlined, emphasizing the need to account for the proprietary nature of biotechnology innovations. The model is illustrated with an application to Roundup Ready soybeans. The estimated value of this innovation is sizeable, with consumers and innovators claiming the larger share of net benefits. Also, disparities in intellectual property rights protection across countries affect the distribution of benefits. Consumer resistance toward genetically modified organisms (GMOs) and the issues of labeling and market segregation complicate the economic evaluation of biotechnology innovations, and a number of related regulation and public policy issues are discussed....
Tipo: Working or Discussion Paper Palavras-chave: Biotechnology; Genetically modified organisms; Identity preservation; Intellectual property rights; R&D; Transgenic crops; Welfare evaluation; Research and Development/Tech Change/Emerging Technologies.
Ano: 2001 URL: http://purl.umn.edu/18413
Imagem não selecionada

Imprime registro no formato completo
Economics, Ecology and GMOs: Sustainability, Precaution and Related Issues AgEcon
Tisdell, Clement A..
Ecological, evolutionary and economic issues involved in introducing genetically modified organisms (GMOs), mainly in agriculture, are discussed. The ecological and evolutionary impacts identified hamper (economic) valuation of GMOs and their biosafety regulation and creates difficulties for planning for sustainable development. Assessment of the desirability of releasing GMOs is difficult because of lack of communal agreement about the risks involved, about how much precaution should be exercised given collective risks, and disagreement on the appropriate social criterion to apply. Changes in legal liability are not always economic and cannot eliminate the social conflict generated by GMOs. The economics of developing and marketing GMOs is explored,...
Tipo: Working Paper Palavras-chave: Biodiversity; Biosafety; Genetically modified organisms; GMOs; Intellectual property rights; Market structure; Sustainable development; Agricultural and Food Policy; Crop Production/Industries; Environmental Economics and Policy; Food Consumption/Nutrition/Food Safety.
Ano: 2011 URL: http://purl.umn.edu/122726
Imagem não selecionada

Imprime registro no formato completo
Genetically modified crops in Chile Ciencia e Investigación Agraria
Salazar,Erika; Montenegro,Gloria.
The economical, environmental and social impacts associated with genetically modified (GM) crops are supported by the increased use of GM species by farmers. This increase in the use of GM species has included a global increase in both the number of hectares with GM crops and the number of countries using this technology. However, the use of GM crops has some drawbacks, due to the environmental risks associated with some of the events and social risks related to intellectual property rights issues and the monopoly associated with this technology. An overview of the current status of the use of GM crops in relation to the production, benefits, associated risks, intellectual property rights, legislation and regulatory framework is presented, focusing in the...
Tipo: Journal article Palavras-chave: Genetically modified organisms; Regulatory framework; Intellectual property; Chile.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202009000300003
Imagem não selecionada

Imprime registro no formato completo
Genetically Modified Organisms at the Crossroads: Comments on "Genetically Modified Crops: Risks and Promise" by Gordon Conway Ecology and Society
Walker, Brian; CSIRO Sustainable Ecosystems; Brian.Walker@csiro.au; Lonsdale, Mark; CSIRO Entomology; mark.lonsdale@ento.csiro.au.
Tipo: Peer-Reviewed Reports Palavras-chave: GMO technology; Agriculture; Ecosystem effects; Genetically modified organisms; Indirect effects; Introduced species; Risk analysis; Risk assessment.
Ano: 2000
Imagem não selecionada

Imprime registro no formato completo
GM crop technology and trade restraints: economic implications for Australia and New Zealand AgEcon
Anderson, Kym; Jackson, Lee Ann.
How much might the potential economic benefit from enhanced farm productivity associated with crop biotechnology adoption by Australia and New Zealand (ANZ) be offset by a loss of market access abroad for crops that may contain genetically modified (GM) organisms? This paper uses the Global Trade Analysis Project (GTAP) model to estimate effects of other countries’ GM policies without and with ANZ farmers adopting GM varieties of various grains and oilseeds. The gross economic benefits to ANZ from adopting GM crops under a variety of scenarios could be positive even if the strict controls on imports from GM-adopting countries by the European Union are maintained, but not if North-East Asia also applied such trade restaints. From those gross economic...
Tipo: Article Palavras-chave: Biotechnology; Computable general equilibrium; Genetically modified organisms; Regulation; Trade policy; Crop Production/Industries; International Relations/Trade.
Ano: 2005 URL: http://purl.umn.edu/118502
Imagem não selecionada

Imprime registro no formato completo
GMOs: building the future on the basis of past experience Anais da ABC (AABC)
Reis,Luiz F.L.; Van Sluys,Marie-Anne; Garratt,Richard C.; Pereira,Humberto M.; Teixeira,Mauro M..
Biosafety of genetically modified organisms (GMOs) and their derivatives is still a major topic in the agenda of government and societies worldwide. The aim of this review is to bring into light that data that supported the decision taken back in 1998 as an exercise to stimulate criticism from the scientific community for upcoming discussions and to avoid emotional and senseless arguments that could jeopardize future development in the field. It must be emphasized that Roundup Ready® soybean is just one example of how biotechnology can bring in significant advances for society, not only through increased productivity, but also with beneficial environmental impact, thereby allowing more rational use of agricultural pesticides for improvement of the soil...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biosafety; Genetically modified organisms; Transgene.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652006000400005
Imagem não selecionada

Imprime registro no formato completo
How do GM / non GM coexistence regulations affect markets and welfare? AgEcon
Desquilbet, Marion; Poret, Sylvaine.
This paper presents a theoretical economic model assessing the effect of the level of mandatory genetically modified (GM) / non-GM coexistence regulations on market and welfare outcome. We assume vertical differentiation of GM and non-GM goods on the consumer side. Producers are heterogeneous in their cost savings from GMO adoption. Producers of non-GM crops face a probability of having their harvest downgraded if gene flow from GM fields makes its GMO content above the labeling threshold. The government may impose to GMO producers mandatory ex ante isolation distances from non-GM fields in order to decrease the probability of non-GM harvest downgrading. It may also introduce an ex post compensation to non-GMO farmers for profit losses due to harvest...
Tipo: Conference Paper or Presentation Palavras-chave: Genetically modified organisms; Coexistence; Identity preservation; Regulation; Liability; Vertical differentiation; Law and economics; Marketing; Research and Development/Tech Change/Emerging Technologies.
Ano: 2011 URL: http://purl.umn.edu/114757
Imagem não selecionada

Imprime registro no formato completo
Italian Consumer Acceptance of Nutritionally Enhanced GM Food AgEcon
Canavari, Maurizio; Tisselli, Farid; Nayga, Rodolfo M., Jr.; Scarpa, Riccardo.
The aim of this article is to evaluate Italian consumers’ acceptance and willingness to purchase GM foods based on the type of benefit (input vs output trait) and product (plant based vs animal based). Two surveys were administered in two consecutive years (2004 and 2005) and the data used to test for possible changes in consumer acceptance. The results of a multinomial logit analysis suggest that on average consumer acceptance for plant-based GM food was higher in 2005. This study confirmed the key role of information strategies to consumers, with the most relevant results being the role distorted information play in raising the consumer’s level of fear and perceived risk. Respondents also place a higher level of confidence on scientists who are generally...
Tipo: Conference Paper or Presentation Palavras-chave: Food; Genetically modified organisms; Consumer acceptance; Willingness to buy; Nutritionally enhanced food products; Consumer/Household Economics; Marketing; Q13.
Ano: 2009 URL: http://purl.umn.edu/51651
Imagem não selecionada

Imprime registro no formato completo
Manual de biossegurança da Embrapa Meio Ambiente: boas práticas na manipulação e condução de experimentos com organismos geneticamente modificados (OGM), do Grupo 1 e seus derivados. Infoteca-e
CAPALBO, D. M. F.; JONSSON, C. M.; MENDES, R.; PENTEADO, A. L.; PRADO, S. de S.; MOLTOCARO, R. C. R..
Resumo: Este manual constitui um guia orientador para informar, atualizar e despertar o senso crítico dos empregados e colaboradores da Embrapa Meio Ambiente durante a realização das suas atividades de pesquisa que envolvem organismos geneticamente modificados (OGM) e seus derivados.
Tipo: Documentos (INFOTECA-E) Palavras-chave: Organismo geneticamente modificado; OGM; Biossegurança; Genetically modified organisms.
Ano: 2016 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1045317
Registros recuperados: 34
Primeira ... 12 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional