Made available in DSpace on 2014-06-11T19:29:44Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-08-15Bitstream added on 2014-06-13T20:19:57Z : No. of bitstreams: 1 silva_has_me_ilha.pdf: 626455 bytes, checksum: 9b87630ba1a97bfbf880c59642392dff (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / A seringueira Hevea brasiliensis é a principal fonte de borracha natural produzida no mundo. A grande expansão da área plantada no Estado de São Paulo foi feita com o clone RRIM 600. Atualmente, uma série maior de opções se encontra à disposição dos produtores como os PB, GT, PR, IAC, IRCA, séries mais recentes de RRIM e IAN. Devido à necessidade de informações que possam nortear a escolha dos clones a serem plantados, o presente projeto teve por objetivo comparar a influência de clones de seringueira sobre o desenvolvimento populacional dos ácaros fitófagos e avaliação do desfolhamento provocado. O experimento foi conduzido na área do Pólo Regional de Desenvolvimento do Noroeste Paulista, APTA\SAA, no município de Votuporanga, duas áreas experimentais já instaladas foram escolhidas entre as que existem no local, identificadas como Área 1 e Área 2, em ambas foi utilizada a mesma metodologia para coleta, contagem e identificação dos ácaros. Os clones avaliados foram: Área 1, RRIM 600 (testemunha), RRIM 701, GT 1, IAN 873, PR 255, PR 261, PB 217, PB 235 e na Área 2, os clones: RRIM 600 (testemunha), PB 260, PB 330, PB 235, IAC 15, IAC 35, IAC 40, IAC 300, IRCA 111, IAN 3156 e PB 28/59. Os experimentos foram conduzidos em dois períodos: 2004/2005 e 2005/2006. As amostragens foram mensais, coletando-se folhas dos clones para identificação e contagem dos ácaros e das exúvias em laboratório. As espécies fitófagas observadas foram: Calacarus heveae Feres, Tenuipalpus heveae Baker, Phyllocoptruta seringueirae Feres, Schevtchenkella petiolula Feres, Eutetranychus banksii (McGregor), Oligonychus gossypii (Zacher) e Tetranychus mexicanus (McGregor). Os sintomas foram avaliados através de exame visual com atribuição de notas para a porcentagem de amarelecimento e de desfolha das plantas em cada dia de coleta. Foram observadas diferenças significativas... / The rubber tree Hevea brasiliensis is the main source of natural eraser produced in the world. The great expansion of the area planted in the State of São Paulo was done with the clone RRIM 600. Nowadays, a larger series of options is to the disposition of the producers like PB, GT, PR, IAC, IRCA, more recent series of RRIM and IAN. Due to the need of information that they can orientate the choice of the clones to be planted, the present project had for objective to compare the influence of rubber tree clones on the population development of the acarids fitófagos and evaluation of the provoked leaf fall. The experiment was driven in the area of the Regional Pole of Development of the Northwest From São Paulo, APTA\SAA, in the municipal district of Votuporanga, two experimental areas already installed were chosen among the ones that exist at the place, identified as Area 1 and Area 2, in both the same methodology was used for collection, counting and identification of the acarids. The appraised clones were: Area 1, RRIM 600 ( testifies), RRIM 701, GT 1, IAN 873, PR 255, PR 261, PB 217, PB 235 and in the Area 2, the clones: RRIM 600 ( testifies), PB 260, PB 330, PB 235, IAC 15, IAC 35, IAC 40, IAC 300, IRCA 111, IAN 3156 and PB 28/59. The experiments were driven in two periods: 2004/2005 and 2005/2006. The samplings were monthly, being collected leaves of the clones for identification and counting of the acarids and of the exúvias in laboratory. The species observed fitófagas were: Calacarus heveae Feres, Tenuipalpus heveae Baker, Phyllocoptruta seringueirae Feres, Schevtchenkella petiolula Feres, Eutetranychus banksii (McGregor), Oligonychus gossypii (Zacher) and Tetranychus mexicanus (McGregor). The symptoms were appraised through visual exam with attribution of notes for the leaves that are being yellow percentage and of it defoliates of the plants in every day of collection...(Complete abstract, click electronic access below)

Weighted clones Azza Gaysin January 3, 2018 Abstract In this thesis we fully describe the structure of all binary parts of weighted clones over the Boolean clones generated by one of the semilattice operations and one or two of the constant operations. We also give a complete description of all atomic and maximal weighted clones over these clones. Keywords: Relational clones, VCSP, Weighted clones 1

Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico / CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior / Diante da demanda por variedades ou clones de aceroleiras superiores a Embrapa AgroindÃstria Tropical desenvolveu, nos anos de 1996 a 2007, o programa de melhoramento genÃtico da aceroleira, com o propÃsito de recomendar clones produtivos, com frutos de excelente qualidade, como tambÃm de evitar a homogeneizaÃÃo genÃtica dos plantios comerciais. Diante deste objetivo, em 1996, foram selecionadas 100 plantas matrizes por meio da seleÃÃo massal em um pomar da empresa Frutas do Cearà S/A (FRUCESA). A partir dessas matrizes foi iniciado o programa de melhoramento da aceroleira na Embrapa AgroindÃstria Tropical, o qual foi dividido em melhoramento populacional e clonal, resultando em 2003 no lanÃamento de quatro clones recomendados para o Estado do CearÃ, a seguir: BRS 235 (Apodi), BRS 236 (Cereja), BRS 237 (Roxinha) e BRS 238 (Frutacor). Outro resultado deste trabalho foi à obtenÃÃo de 25 clones de aceroleira, em progÃnies de segundo ciclo de seleÃÃo, que foram instalados no campo experimental da Embrapa AgroindÃstria Tropical, em dezembro de 2002, para avaliaÃÃo, durante o perÃodo de cinco anos, seguida pela seleÃÃo dos trÃs melhores clones com base em suas caracterÃsticas agronÃmicas e de pÃs-colheita. O experimento foi instalado no Campo Experimental de Paraipaba (CE), sob delineamento de blocos ao acaso, com 25 tratamentos, trÃs repetiÃÃes e trÃs plantas por parcela, no espaÃamento de 4 m x 4 m. A partir das avaliaÃÃes estimou-se a variabilidade dos clones, como tambÃm o coeficiente de repetibilidade e correlaÃÃo das caracterÃsticas avaliadas. A seleÃÃo foi realizada apÃs a construÃÃo do Ãndice de seleÃÃo de Mulamba & Mock, auxiliada pelo mÃtodo das componentes principais. Observou-se que os 25 clones apresentam reduzida variabilidade genÃtica para as caracterÃsticas agronÃmicas. A seleÃÃo de clones, com base apenas nas caracterÃsticas morfolÃgicas e de produÃÃo jà pode apresentar resultados satisfatÃrios a partir do segundo ano de avaliaÃÃo, tendo-se destaque para os clones 79/2 (7), 79/10 (9) e 87/11 (7) com potencial para serem utilizados em plantio comercial. Observou-se que o mÃtodo dos componentes principais com base na matriz de correlaÃÃo se apresenta como o mais eficiente para a estimaÃÃo do coeficiente de repetibilidade. As estimativas dos coeficientes de repetibilidade das caracterÃsticas AP, DC, PESO, SST e vitamina C, demonstram alta regularidade na superioridade dos indivÃduos de um ano para outro, e que de 5 a 10 avaliaÃÃes sÃo suficientes para predizer o valor real dos indivÃduos com nÃvel de certeza de 95%. Com base nos coeficientes de correlaÃÃo entre os caracteres conclui-se que a seleÃÃo de frutos com maior conteÃdo de vitamina C pode ser realizada de forma indireta. A partir do Ãndice de seleÃÃo de Mulamba & Mock foi recomendada a seleÃÃo dos genÃtipos 87/11 (7), 79/10 (9) e 91/8 (2) por apresentarem uma sÃrie de atributos favorÃveis, com potencial para serem avaliados em experimentos de larga escala em diferentes regiÃes do Estado do Cearà / Given the demand for varieties or clones of acerola above Embrapa Tropical Agroindustry developed in the years 1996 to 2007, the program of genetic improvement of aceroleira in order to recommend clones productive, with fruits of excellent quality, but also to avoid genetic homogeneity of commercial plantations. Having this goal in 1996, dies 100 plants were selected by mass selection in an orchard of fruit company of Ceara S/A (FRUCESA). From these matrices was initiated the program to improve the aceroleira at Embrapa Tropical Agroindustry, which was divided into breeding stock and clonal, resulting in 2003 in the launch of four clones recommended for the State of CearÃ, the following: BRS 235 (Apodi) , BRS 236 (Cereja), BRS 237 (Roxinha) and BRS 238 (Frutacor). Another result of this study was to obtain 25 clones of aceroleira in progenies of the second round of selection, which were installed in the experimental field of Embrapa Tropical Agroindustry in December 2002 for evaluation during the period of five years, followed by selection the three best clones based on their agronomic and post-harvest. The experiment was installed in the Experimental Field of Paraipaba (CE), under a randomized block design with 25 treatments, three replications and three plants per plot, spaced 4 m x 4 m. From the assessments it was estimated the variability of the clones, as well as the coefficient of repeatability and correlation of the characteristics evaluated. The selection was made after the construction of selection index of Mulamba & Mock, aided by the method of principal components. It was observed that the 25 clones have reduced genetic variability for agronomic traits. The selection of clones, based only on morphological characteristics and production can now present satisfactory results from the second year of evaluation, it was highlighted for clones 79 / 2 (7), 79/10 (9) and 87 / 11 (7) with potential for use in a commercial. It was observed that the method of principal components based on a correlation matrix is presented as the most efficient for the estimation of the coefficient of repeatability. Estimates of the coefficients of repeatability of AP characteristics, DC, weight, TSS and vitamin C, show high regularity in the superiority of individuals from one year to another, and that 5-10 assessments are sufficient to predict the actual level of individuals with certainty of 95%. Based on the correlation coefficients between the characters it follows that the selection of fruits with higher content of vitamin C can be carried out indirectly. From the selection index of Mulamba & Mock was recommended the selection of genotypes 87/11 (7), 79/10 (9) and 91 / 8 (2) by presenting a number of favorable attributes, with potential to be evaluated in large-scale experiments in different regions of the state of CearÃ

Orientadores: Valéria Maia Merzel, Suzan Pantaroto de Vasconcellos / Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Biologia / Made available in DSpace on 2018-08-26T20:16:20Z (GMT). No. of bitstreams: 1 Dellagnezze_BrunaMartins_D.pdf: 5318956 bytes, checksum: ea46ea243dab1c96e35480b724029b55 (MD5) Previous issue date: 2015 / Resumo: A poluição é um problema mundial amplamente discutido, incluindo os derramamentos de petróleo ocorridos através de acidentes ou por atividades humana, os quais acarretam grande impacto ambiental e econômico. O processo de biorremediação utiliza micro-organismos, associados ou não a outros compostos como biossurfactantes e até mesmo enzimas, com o objetivo de transformar compostos orgânicos em inorgânicos, levando à formação de compostos inertes ou não tóxicos. Deste modo, a biorremediação representa um modo efetivo e sustentável para se tratar áreas contaminadas. Neste trabalho foi possível avaliar o potencial de clones metagenômicos obtidos a partir da construção de uma biblioteca fosmidial e de linhagens de bactérias, todos provenientes de amostras de petróleo de reservatórios brasileiros em escala de microcosmos e mesocosmos, visando futura aplicação em processos de biorremediação. Em um primeiro ensaio os micro-organismos foram avaliados na forma livre, em 50 mL de água do mar artificial e petróleo bruto como única fonte de carbono, a cada sete dias durante 21 dias. Posteriormente, os micro-organismos com melhor potencial de biodegradação foram selecionados e aprisionados em esferas de quitosana e testados novamente em microcosmos, em diferentes escalas, durante 21 e 30 dias. Com base nos resultados observados nos ensaios de degradação em microcosmos, um último ensaio foi realizado empregando-se um consórcio contendo quatro clones metagenômicos e uma linhagem de Bacillus subtilis, o qual foi avaliado em ensaio de mesocosmos em 3000 litros de água do mar não-estéril. Nesta etapa, parâmetros como a contagem total dos micro-organismos (DAPI) e a demanda biológica de oxigênio (DBO) foram avaliados, e a cromatografia gasosa (CG) foi empregada para avaliar a degradação de hidrocarbonetos do petróleo. Os resultados demonstraram a capacidade desses micro-organismos em degradar compostos do petróleo bruto, tanto hidrocarbonetos alifáticos como aromáticos. Em microcosmos, na forma livre, as linhagens de Dietzia maris e Micrococcus sp. apresentaram o melhor desempenho, alcançando ao final de 21 dias 99% de degradação de hidrocarbonetos alifáticos e de 63-99% de degradação de aromáticos (fenantreno e metilfenantreno). Dentre os clones, o clone 2B apresentou o melhor desempenho para degradar tanto hidrocarbonetos alifáticos (47%) como aromáticos (94%). Na forma aprisionada, os micro-organismos também apresentaram capacidade para degradar petróleo bruto em mesocosmos, exibindo valores de degradação de 90 a 100 % para hidrocarbonetos saturados e 70 a 100% para aromáticos, ao final de 30 dias de avaliação. Os resultados indicam um resultado promissor e inédito, onde um consórcio combinado contendo clones metagenômicos e Bacillus subtillis pode ser futuramente utilizado em estratégias de bioaumento, em sistemas de contenção, como ferramenta para biorremediação de ambientes contaminados com hidrocarbonetos / Abstract: Pollution is a global environmental problem widely discussed, including oil spills that occur accidentally or due to human activities, which cause huge environmental and economic impacts. Bioremediation process uses biological agents, associated or not to other compounds like biosurfactants or even their enzymes, to mineralize or complex organic and inorganic pollutant compounds, transforming them into inert or non-toxic compounds. Thus, bioremediation represents an ecofriendly and effective way to treat impacted areas. In this work, the biodegradation potential of clones obtained from metagenomic libraries and bacterial isolates, all originated from Brazilian petroleum reservoirs, was evaluated in microcosm and mesocosm scale aiming at a future application in bioremediation process. In the first assay, microorganisms were evaluated as free cells, in 50 mL-volume of artificial seawater and using crude oil as sole carbon source. The experiment was monitored each seven days during 21 days. Further, the best performing microorganisms were selected, immobilized in chitosan beads and evaluated in microcosm assays, at different scales, during 21 and 30 days. Finally, in the last experiment, one consortium containing four metagenomic clones and a Bacillus subtilis strain was evaluated in mesocosmos assay in 3000 L-volume of non-sterile seawater. Parameters such as total counting of microorganisms by DAPI and biological oxygen demand (BOD) were evaluated, and petroleum degradation was monitored by chromatographic analysis. Results demonstrated the ability of the microorganisms to degrade aliphatic and aromatic hydrocarbons. In microcosms, using free cells, the strains of Dietzia maris and Micrococcus sp. showed the best performance, reaching 99% of aliphatic hydrocarbon degradation and 63-99% of aromatic compound degradation in 21 days. Among metagenomic clones, clone 2B presented the best performance to degrade aliphatic (47%) and aromatic hydrocarbons (94%). In chitosan beads, the microorganisms were also able to degrade crude petroleum, showing percentages between 90 and 100% for aliphatic hydrocarbons and 70 and 100% to aromatic. The results gathered in this work demonstrate that a microbial consortium containing metagenomic clones and one bacterial strain is able to achieve high extents of hydrocarbon degradation, offering a promising tool to be further used in bioaugmentation approaches for treating contaminated environments / Doutorado / Genetica de Microorganismos / Doutora em Genética e Biologia Molecular

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Tsai Sau-Na. / Thesis submitted in: 2003. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2004. / Includes bibliographical references (leaves 157-170). / Abstracts in English and Chinese. / Thesis committee --- p.i / Statement --- p.ii / Abstract --- p.iii / Acknowledgements --- p.vii / General Abbreviations --- p.ix / Abbreviations of Chemicals --- p.xii / Table of contents --- p.xiv / List of figures --- p.xx / List of tables --- p.xxii / Chapter 1. --- Literature Review --- p.1 / Chapter 1.1 --- Salinization is a global problem --- p.1 / Chapter 1.2 --- Causes of soil salinization in agricultural lands --- p.2 / Chapter 1.3 --- Toxicity of salinity in plants --- p.4 / Chapter 1.3.1. --- Physiological drought --- p.4 / Chapter 1.3.2. --- Nutritional imbalance --- p.5 / Chapter 1.3.3 --- Specific ion toxicity --- p.6 / Chapter 1.4 --- Plant adaptation to salinity --- p.7 / Chapter 1.5 --- Ion transport proteins in plant --- p.10 / Chapter 1.5.1 --- "Pump, channel and carrier" --- p.10 / Chapter 1.5.2 --- Pumps --- p.11 / Chapter 1.5.2.1 --- P-ATPase --- p.11 / Chapter 1.5.2.2 --- V-ATPase --- p.12 / Chapter 1.5.2.3 --- PPiase --- p.12 / Chapter 1.5.3 --- Cation channels --- p.13 / Chapter 1.5.3.1 --- K+ channels --- p.13 / Chapter 1.5.3.1.1 --- Shaker family --- p.14 / Chapter 1.5.3.1.1.1 --- KIRCs --- p.16 / Chapter 1.5.3.1.1.2 --- KORCs --- p.17 / Chapter 1.5.3.1.1.3 --- VICs --- p.18 / Chapter 1.5.3.1.2 --- Kir family --- p.18 / Chapter 1.5.3.1.2 --- KCO family --- p.19 / Chapter 1.5.3.2 --- Ca2+ channels --- p.20 / Chapter 1.5.3.2.1 --- TPC family --- p.20 / Chapter 1.5.3.2.2 --- CNGC family --- p.21 / Chapter 1.5.4 --- Anion Channels --- p.22 / Chapter 1.5.5 --- Carriers --- p.23 / Chapter 1.5.5.1 --- High affinity K+ carriers --- p.23 / Chapter 1.5.5.1.1 --- HKT transporter --- p.24 / Chapter 1.5.5.1.2 --- HAK/KUP transporter --- p.25 / Chapter 1.5.5.2 --- Cation/H+ antiporters --- p.26 / Chapter 1.5.5.2.1 --- Na+/H+ antiporter --- p.27 / Chapter 1.5.5.2.2 --- Ca2+/H+ antiporters --- p.30 / Chapter 1.6 --- Ion homeostasis and salt tolerance --- p.31 / Chapter 1.6.1 --- Ion transporters involved in ion homeostasis during salt stress --- p.31 / Chapter 1.6.2 --- Sodium uptake under salt stress --- p.32 / Chapter 1.6.4 --- Sodium extrusion --- p.36 / Chapter 1.6.5 --- Intracellular compartmentation --- p.37 / Chapter 1.6.6 --- Genetic engineering of ion transporter for improvement of salt tolerance --- p.40 / Chapter 1.7 --- Soybean as a target for studies of salt tolerance --- p.41 / Chapter 1.7.1 --- Economic importance of soybean --- p.41 / Chapter 1.7.2 --- Salt tolerant soybean in China --- p.43 / Chapter 1.7.3 --- Previous studies of Wenfeng7 and Union in our laboratory --- p.43 / Chapter 1.7.4 --- Hypothesis and research strategy of my project --- p.46 / Chapter 2. --- Materials and methods --- p.49 / Chapter 2.1 --- Materials --- p.49 / Chapter 2.1.1. --- Plant materials --- p.49 / Chapter 2.1.2. --- Bacteria strains and plasmid vectors --- p.50 / Chapter 2.1.3. --- Growth media for soybeans and A. thaliana --- p.50 / Chapter 2.1.4. --- Chemicals and reagents used --- p.50 / Chapter 2.1.5. --- Solutions used --- p.51 / Chapter 2.1.6. --- Commercial kits used --- p.51 / Chapter 2.1.7. --- Equipment and facilities used --- p.51 / Chapter 2.1.8. --- Primers used --- p.51 / Chapter 2.2 --- Methods --- p.52 / Chapter 2.2.1 --- Cloning of ion transporters --- p.52 / Chapter 2.2.1.1. --- Sample preparation --- p.52 / Chapter 2.2.1.2 --- Total RNA extraction --- p.52 / Chapter 2.2.1.3 --- Primer design for RACE --- p.53 / Chapter 2.2.1.4 --- 5´ة& 3´ة RACE of ion transporters --- p.54 / Chapter 2.2.1.5 --- Subcloning of RACE cDNA fragments --- p.56 / Chapter 2.2.1.6 --- PCR screening of white colonies --- p.57 / Chapter 2.2.1.8 --- Preparation of recombinant plasmid for sequencing --- p.57 / Chapter 2.2.1.9 --- Sequencing and homology search --- p.58 / Chapter 2.2.1.10 --- Cloning of full length coding regions of ion transporters --- p.58 / Chapter 2.2.1.11 --- "Sequence comparison, analysis and multialignment" --- p.62 / Chapter 2.2.2 --- Gene expression profiles --- p.62 / Chapter 2.2.2.1 --- Sample stepwise treatment with different concentration of NaCl --- p.62 / Chapter 2.2.2.2 --- Sample treatment with different Hoagland's solution supplement with 1.2% NaCl --- p.63 / Chapter 2.2.2.3 --- Preparation of single-stranded DIG-labeled PCR probes --- p.64 / Chapter 2.2.2.4 --- Testing the concentration of DIG-labeled probes --- p.65 / Chapter 2.2.2.5 --- Northern blot technique --- p.66 / Chapter 2.2.2.6 --- RT-PCR (Reverse-transcription polymerase chain reaction) --- p.67 / Chapter 2.2.3 --- Functional test using transgenic plants --- p.68 / Chapter 2.2.3.1 --- Preparation of chimeric gene constructs and recombinant plasmids --- p.68 / Chapter 2.2.3.2 --- "Eletroporation of Agrobacterium, tumefaciens" --- p.69 / Chapter 2.2.3.3 --- Seed sterilization and plant growth --- p.70 / Chapter 2.2.3.4 --- Vacuum infiltration transformation of Arabidopsis thaliana --- p.71 / Chapter 2.2.3.5 --- Selection of hemizygous and homozygous transgenic plants --- p.72 / Chapter 2.2.3.6 --- Genomic DNA extraction and PCR screening --- p.72 / Chapter 2.2.3.7 --- RT-PCR and Northern Blot of transgenic plants --- p.73 / Chapter 2.2.3.8 --- Functional test on MS plate supplemented with NaCl --- p.73 / Chapter 2.2.3.9 --- Functional test on sand supplemented with Hoagland's solution and NaCl --- p.74 / Chapter 3. --- Results --- p.76 / Chapter 3.1 --- "Cloning of Nhx, AKT1 and CLC from Wenfeng7 and Union" --- p.76 / Chapter 3.1.1 --- "Cloning of 5'- & 3'- RACE cDNA fragments of Nhx, AKT1 and CLC" --- p.76 / Chapter 3.1.2 --- "Cloning of full length coding regions of Nhx, AKT1 and CLC from Wenfeng7 and Union" --- p.77 / Chapter 3.1.3 --- "Sequence comparison, analysis and multialignment" --- p.82 / Chapter 3.1.3.1 --- Sequence analysis and multialignment of GmNhx1 and GmNhx2 --- p.82 / Chapter 3.1.3.2 --- Sequence analysis and multialignment of GmAKTl --- p.92 / Chapter 3.1.3.3 --- Sequence analysis and multialignment of GmCLC --- p.101 / Chapter 3.2 --- "Gene expression profiles of GmNhx, GmCLC and GmAKTl" --- p.111 / Chapter 3.2.1 --- Induction of GmNhx and GmCLC gene expression by NaCl in different Hoagland's solution --- p.111 / Chapter 3.2.2 --- RT-PCR using gene specific primers to distinguish the gene expression of GmNhx1 and GmNhx2 --- p.116 / Chapter 3.2.3 --- RT-PCR analysis of the transcripts of GmAKTl in Wenfeng7 and Union --- p.118 / Chapter 3.3 --- Functional analysis of transgenic plants in salt tress --- p.120 / Chapter 3.3.1 --- "Construction of chimeric gene of GmNhx1´ة GmNhx2, GmCLC and GmAKT1 into V7 vector" --- p.120 / Chapter 3.3.2 --- Transformation of chimeric gene constructs into A. tumefaciens --- p.122 / Chapter 3.3.3 --- Vacuum infiltration transformation of Arabidopsis thaliana and selection of transgenic plants --- p.123 / Chapter 3.3.4 --- PCR screening of transgene from transgenic plants --- p.130 / Chapter 3.3.5 --- PT-PCR and Northern blot analysis of the transgene transcripts --- p.133 / Chapter 3.3.6 --- Functional test of transgenic plants under salt stress --- p.135 / Chapter 4. --- Discussion --- p.139 / Chapter 4.1 --- "Isolation of GmNhx, GmAKTl and GmCLC from Wenfeng7 and Union" --- p.139 / Chapter 4.1.1. --- GmNhx1 and GmNhx2 are putative vacuolar Na+/H+ antiporters from Wenfeng7 and Union --- p.139 / Chapter 4.1.2. --- GmAKT1 is an inward-rectifying K+ channel from Wenfeng7 and Union --- p.141 / Chapter 4.1.3 --- GmCLC is a putative vacuolar voltage-dependent chloride channel from Wenfeng7 and Union --- p.144 / Chapter 4.2 --- "Gene expression profiles of GmNhx, GmAKT1 and GmCLC from Wenfeng7 and Union" --- p.146 / Chapter 4.2.1 --- Differential expression between GmNhx1 and GmNhx2 in Wenfeng7 and Union --- p.146 / Chapter 4.2.2 --- Coordinated expression of GmNhx and GmCLC in wenfeng7 and Union --- p.147 / Chapter 4.2.3 --- GmAKT1 is preferentially expressed in roots of wenfeng7 and Union and presented in low abundance --- p.148 / Chapter 4.3 --- Functional tests of transgenic Arabidopsis plants --- p.150 / Chapter 4.3.1 --- Screening of heterozygous and homozygous transgenic plant --- p.150 / Chapter 4.3.2 --- Function tests of heterozygous and homozygous transgenic plants under salt stress --- p.151 / Chapter 4.3.3 --- Gene silencing in transgenic plants --- p.152 / Chapter 5. --- Conclusion and perspectives --- p.155 / References --- p.157 / "Appendix I: Buffer, restriction and modifying enzymes" --- p.171 / Appendix II: Major chemicals and reagents used in this research --- p.171 / Appendix III: Major common solutions used in this research --- p.174 / Appendix IV: Commercial kits used in this research --- p.177 / Appendix V: Major equipment and facilities used --- p.177

Thesis (Ph.D)--Biology, Georgia Institute of Technology, 2009. / Committee Chair: Dr. John Cairney. Part of the SMARTech Electronic Thesis and Dissertation Collection.

Submitted by Heitor Rapela Medeiros (heitor.rapela@ufpe.br) on 2015-03-06T13:25:39Z No. of bitstreams: 2 Dissertação Marcelle Aquino Rabelo.pdf: 2399592 bytes, checksum: c68067abc87eeef6c24adc6f08c76a8f (MD5) license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) / Made available in DSpace on 2015-03-06T13:25:39Z (GMT). No. of bitstreams: 2 Dissertação Marcelle Aquino Rabelo.pdf: 2399592 bytes, checksum: c68067abc87eeef6c24adc6f08c76a8f (MD5) license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Previous issue date: 2012-03-05 / CNPq, Facepe / Desde o relato do primeiro caso de resistência à meticilina em Staphylococcus que esse micro-organismo vem sendo considerado como um dos agentes de maior impacto para as infecções associadas aos cuidados em saúde. A disseminação desses isolados bacterianos resistentes a múltiplas drogas em serviços hospitalares é muitas vezes atribuída a profissionais, sendo sugerida a importância do mesmo em surtos. O presente estudo teve como objetivo descrever a diversidade epidemiológica, genética e a susceptibilidade antimicrobiana de Staphylococcus spp. das amostras provenientes de secreção de nasal de profissionais de saúde e amostras clínicas de pacientes internados nas UTIs, hemodiálise/nefrologia e clínicas cirúrgicas do Hospital das Clínicas da Universidade Federal de Pernambuco, no período de abril a agosto do ano de 2011. Foram coletadas amostras de 91 pacientes internados nesses setores e 120 profissionais que trabalhavam nos mesmos, a fim de realizar isolamento e identificação de Staphylococcus spp. Estas amostras foram submetidas a testes de susceptibilidade antimicrobiana, detecção do gene mecA e avaliadas quanto a presença de clones por ribotipagem-PCR. Assim, MRS (Staphylococcus resistente à meticilina) foi prevalente entre os técnicos de enfermagem, 48,15% (13/27) dentre as amostras positivas, e 40,74% (11/27) dos isolados oriundos dos profissionais de saúde foram das clínicas cirúrgicas. Nos pacientes, a maior ocorrência de isolados mecA positivos esteve entre as amostras de ponta de cateter, representando 33,33% (3/9) dos isolados. Foram encontrados oito isolados resistentes à vancomicina dentre os MRS e com base nos padrões de amplificação, descreveu-se 23 ribotipos, sendo um deles descrito em uma amostra de um paciente e de um enfermeiro. O conhecimento do perfil fenotípico e molecular de amostras de Staphylococcus pode contribuir para orientar a conduta terapêutica no tratamento e controle das infecções hospitalares.