Tobacco Regulation
Mostrando 1-12 de 257 artigos, teses e dissertações.
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1. Prenatal tobacco exposure is related to neurobehavioral modifications in infants of adolescent mothers
INTRODUCTION: Prenatal tobacco exposure interferes with neonatal outcomes. OBJECTIVE: To determine the neonatal neurobehavioral effects of in utero tobacco exposure. METHODS: This prospective cross-sectional study included healthy, term, with birth weight appropriate for gestacional age neonates without exposure to alcohol, drugs, or infections, born to adol
Clinics. Publicado em: 2011
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2. Functional and structural analysis of the BigR protein from Xylella fastidiosa involved in the regulation of Xf0768-0764 operon / Analise funcional e estrutural da proteina BigR de Xylella fastidiosa envolvida na regulação do operon Xf0768-0764
The XF0767 gene from Xylella fastidiosa is located in an operon composed by a set of genes (XF0768-XF0767-XF0766-XF0765-XF0764) of unknown function. This operon is conserved in a number of plant-associated bacteria including Agrobacterium tumefaciens, Mezorhizobium loti e Sinorhizobium meliloti. The DNA region upstream of the operon has canonical sequences c
Publicado em: 2008
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3. THE PEASANT AND THE AGROTOXICS: PRACTICES AND DISCOURSES IN THE MUNICIPALITY OF NOVO CABRAIS/RS / O HOMEM DO CAMPO E OS AGROTÓXICOS: PRÁTICAS E DISCURSOS NO MUNICÍPIO DE NOVO CABRAIS/RS
This paper presents an analysis of the relationship between the rural growers of Novo Cabrais/RS with agrotoxics. Through a qualitative investigation an attempt was made to reveal the paradigms implied in the discourse of agricultural agents regarding the usage and regulation of agrotoxic products in order to provide subsidies for more effective communicatio
Publicado em: 2008
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4. A emergência de fóruns reguladores globais : relações e conflitos entre atores locais no processo de regulação do tabaco
Esta dissertação discute a proposição de políticas geradas por organismos multilaterais e que precisam ser institucionalizadas no âmbito do Estado nacional. Parte-se do fato de que a proposição de políticas é resultante de um processo de disputa entre atores sociais, políticos e econômicos. Nas últimas décadas, a globalização tem modificado a
Publicado em: 2008
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5. Efeito da inativação do retroelemento Tnt1 na regeneração de plantas de fumo / Retrotransposon Tnt1 inactivation: effect upon regeneration of tobacco plants
Transposable elements are DNA sequences that have the ability of transposition. These elements are divided in two groups according to their transposition mechanism. Those that transpose directly as a DNA molecule are called transposons and those that are dependent on a RNA intermediate are called retrotransposons. Retrotransposons are found in various organi
Publicado em: 2007
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6. Evaluation of the chemical composition of the cell wall of transgenic tobacco plants (Nicotiana tabacum) that superexpress the gene ugdh, that codes for the enzyme UDPglucose dehydrogenase (EC 1.1.1.22) / Avaliação da composição química da parede celular de plantas de tabaco (Nicotiana tabacum) que superexpressam o gene ugdh de soja, que codifica a enzima UDP-glicose desidrogenase (EC 1.1.1.22)
The cellular elements that constitute the xylematic tissue of various plant species are widely used in diverse industrial sectors, with numerous applications, for example, the generation of energy and production of cellulose and paper. Plant cell walls are basically formed by cellulose, hemicellulose and lignin. The formation of cellulose and hemicellulose p
Publicado em: 2007
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7. Estresse osmótico e do retículo endoplasmático induzem morte celular programada de maneira dependente das proteínas NRPs / Osmotic- and ER-stress induce NRPs-dependent programed cell death
The identification of cell signaling pathways in response to different stresses and the interactions among these pathways have become major focus for understanding the molecular bases of plant cell-environment interactions. Recently, a novel integrative pathway between ER- and osmotic-stress has been described by our group. Among the target genes of the inte
Publicado em: 2007
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8. Molecular and functional characterization of the NAC transfactor family from soybean (Glycine max) / Caracterização molecular e funcional de transfatores da família NAC de soja (Glycine max)
The identification of cell signaling pathways in response to different stresses has become a major focus for understanding the molecular bases of plantenvironment interactions. We have previously identified a set of soybean genes co-regulated by ER- and osmotic stresses, which possibly constitute a novel integrative pathway in plants. Among the identified ge
Publicado em: 2007
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9. "Efeito modulatório da nicotina sobre a neurotransmissão em núcleos encefálicos responsáveis pelo controle cardiovascular em ratos geneticamente hipertensos e normotensos" / "Nicotine modulatory effects on neurotransmiter systems in the cardiovascular brain areas of spontaneously hypertensive and normotensive rats"
Nicotine is one of the most important agents for cardiovascular diseases in tobacco smoking. This alkaloid acts in the blood stream, but it also crosses the blood-brain-barrier and participate in the regulation of pivotal neurotransmitter systems for the blood pressure control and, eventually, for hypertension development. In this context, nicotine abuse cou
Publicado em: 2006
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10. Transcriptional Down-Regulation by Abscisic Acid of Pathogenesis-Related β-1,3-Glucanase Genes in Tobacco Cell Cultures1
Class I isoforms of β-1,3-glucanases (βGLU I) and chitinases (CHN I) are antifungal, vacuolar proteins implicated in plant defense. Tobacco (Nicotiana tabacum L.) βGLU I and CHN I usually exhibit tightly coordinated developmental, hormonal, and pathogenesis-related regulation. Both enzymes are induced in cultured cells and tissues of cultivar Havana
American Society of Plant Physiologists.
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11. Regulation of Sulfate Assimilation in Tobacco Cells: EFFECT OF NITROGEN AND SULFUR NUTRITION ON SULFATE PERMEASE AND O-ACETYLSERINE SULFHYDRYLASE 1
The effect of nitrogen and sulfur nutrition on sulfate permease and O-acetylserine sulfhydrylase was studied in tobacco cells.
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12. Regulation of Ethylene Biosynthesis in Virus-Infected Tobacco Leaves 1: I. DETERMINATION OF THE ROLE OF METHIONINE AS THE PRECURSOR OF ETHYLENE
The hypersensitive reaction of Samsun NN tobacco leaves to tobacco mosaic virus (TMV) was accompanied by a large increase in ethylene production, just before necrotic local lesions became visible. Normal and virus-induced ethylene production were both largely inhibited by 0.1 millimolar aminoethoxyvinylglycine indicating that methionine is a main ethylene pr