995 resultados para Pescados - Microbiologia
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El objetivo es evaluar los efectos del programa Bolsa Família (PBF) en los gastos de las familias beneficiarias en: alimentos, frutas, carnes y pescados, aves y huevos, verduras, cereales y oleaginosas, harinas y pastas, tubérculos y raíces, azúcar, productos de panadería, bebidas alcohólicas, educación, higiene, salud y materiales escolares. En la estimación se utilizaron microdatos de la Encuesta de Presupuestos Familiares del Brasil 2008-2009. La metodología para calcular el efecto medio del tratamiento en los tratados fue el emparejamiento por puntaje de propensión (propensity score matching). Los resultados fueron estadísticamente significativos respecto de los gastos en: i) alimentos; ii) aves y huevos; iii) legumbres y verduras; iv) cereales, leguminosas y oleaginosas; v) harinas, féculas y pastas; vi) tubérculos y raíces; vii) azúcares y derivados, y viii) artículos escolares. Se observa que las familias beneficiarias aumentaron la adquisición de bienes prioritarios y de materiales escolares, que suponen una inversión en educación.
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The tree leguminous gliricídia (Gliricidia sepium), acácia (Acacia mangium), leucena (Leucaena leucocephala) and sombreiro (Clitoria fairchildiana) are indicated for agroforestry systems, reclamation of degraded lands, reforestation and other purposes in the wet tropic. Despite the importance of legumes the preamazon region it is lacking in information about the symbiotic capacity and diversity of indigenous rhizobia of these legumes. The aim of this work was to evaluate the phenotypic and genetic diversity of rhizobia species nodulating gliricidia sombreiro, leucena and acacia in the Maranhão pre-Amazon region and authenticate isolates of these species in siratro (Macroptilium atropurpureum). For this they were installed two experiments. Sampling was carried out on a alley cropping system, was sampled 20 plants of each species by collecting 10 nodules per plant. It was made isolation, cultural characterization, partial 16S rRNA gene sequencing and analysis of the symbiotic ability of bacterial strains with siratro. The authentication experiment was done in two steps for each legume (gliricidia, acácia, sombreiro and leucena), in the greenhouse and in a completely randomized design with three replications with sterile Hoagland nutrient solution as substrate. Gliricídia, Sombreiro, leucena and acacia are colonized by distinct groups of rhizobia. Gliricidia nodulate preferably with Rhizobium, sombreiro and acacia nodulate preferably with Bradyrhizobium and leucena has Mesorhizobium main symbiote. Endophytic strains of ten genera were found colonizing the gliricidia, sombrero, leucena and acacia nodules and a strain of Arthrobacter sp. had a positive nodulation with siratro. This is the first report on isolation of Methylobacterium sp. in gliricidia nodules and endophytic ability of Terriglobus sp. strains. Indigenous strains of pre-Amazon region of Bradyrhizobium, Mesorhizobium and Rhizobium genus nodulate with siratro, but are ineficiente or had low efficiency to promote their growth.
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Pós-graduação em Medicina Veterinária - FMVZ
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Pós-graduação em Medicina Veterinária - FMVZ
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Pós-graduação em Medicina Veterinária - FMVZ
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Pós-graduação em Alimentos e Nutrição - FCFAR
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Pós-graduação em Agronomia - FEIS
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Pós-graduação em Microbiologia Agropecuária - FCAV
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Pós-graduação em Microbiologia Agropecuária - FCAV