Non Cultivated Microorganisms
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. Glucose mineralization in soils of contrasting textures under application of S-metolachlor, terbuthylazine, and mesotrione, alone and in a mixture
ABSTRACT Microbial adaptation may occur in surface soils under agricultural uses exposed to herbicides. However, little is known about herbicide mixture effects in the soil, especially in tropical regions like Brazil. The aim of this study was to evaluate glucose mineralization in soils of contrasting textures (sandy clay and sandy loam) from areas cultivate
Bragantia. Publicado em: 18/12/2017
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2. Clinical importance and representation of toxigenic and non-toxigenic Clostridium difficile cultivated from stool samples of hospitalized patients
The aim of this study was to fortify the clinical importance and representation of toxigenic and non-toxigenic Clostridium difficile isolated from stool samples of hospitalized patients. This survey included 80 hospitalized patients with diarrhea and positive findings of Clostridium difficile in stool samples, and 100 hospitalized patients with formed stool
Brazilian Journal of Microbiology. Publicado em: 2012-03
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3. Mapeamento do potencial biossintético em linhagens de Streptomyces / Mapping the biosynthetic potential in Streptomyces strains
Actinobacteria are important sources of new molecules with biological activities. Streptomyces are the most important genera studied. Such microorganisms carries out among a variety of biosynthetic enzimes, two main groups known as polyketide synthase (PKS) and non ribosomal peptide synthetase (NRPS), both catalyzing the biosynthesis of polyketide and non ri
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/07/2011
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4. LixiviaÃÃo, formaÃÃo de resÃduos ligados e biorremediaÃÃo de atrazina em solo subtropical submetido à aplicaÃÃo de Ãgua residuÃria da suinocultura / Leaching, bound residues formation and bioremediation of the atrazine in subtropical soil submitted of swine wastewater application
Atrazine is a triazine herbicide, widely used in agriculture to control weeds in corn and cane sugar farming. However, atrazine is considered a pesticide moderately persistent in the environment and the application of wastewater to the soil can affect its environmental performance. In this study, the effects of wastewater from swine (ARS) in leaching, dissip
Publicado em: 2010
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5. Solubilization of phosphorus by endofhytic bacteria / Solubilização de fósforo por bactérias endofíticas
Soil microorganisms directly affect fertility and plant yield. Among these, inorganic phosphate solubilizers enhance phosphorus availability, and may increase phosphorus fertilizers efficiency. This work aimed to select inorganic phosphorus solubilizing bacteria as potential plant growth promoters. On the first stage, previously obtained isolates, from leave
Publicado em: 2010
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6. Characterization and use of diazotrophic bacteria isolated from different rice cultivars originated from Maranhão State. / Caracterização e uso de bactérias diazotróficas isoladas de diferentes cultivares de arroz originárias do estado do Maranhão.
Several works have shown that rice crop can benefit from the association with diazotrophic bacteria. However, the biological nitrogen fixation (BNF) in rice is dependent of a complex interaction among the plants, microorganisms and the ecosystem. The general objective of this work was to evaluate the contribution of BNF in varieties of rice originated from t
Publicado em: 2008
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7. Bactérias na água de abastecimento da cidade de Piracicaba / Bacteria in water supply from Piracicaba city
Espera-se que a água esteja dentro de um padrão de qualidade após passar pelos processos de tratamento, que deve ser mantido durante a distribuição chegando aos pontos de consumo em condições de jamais prejudicar a saúde humana e animal. Contudo, há vários problemas de saúde que mundialmente vêm sendo associados ao suprimento público de água, f
Publicado em: 2008
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8. ExploraÃÃo biotecnolÃgica de microrganismos de solo de cerrado atravÃs da construÃÃo de bibliotecas metagenÃmicas e tÃcnicas de cultivo
The Cerrado is Brazilâs second biggest biome (22%), distinguished for its fauna and flora diversity. Few studies about its soil microbiane diversity have been carried out, and the main reason that the knowledge about microorganisms is limited is that, until not long ago, these had to be cultivated in order to be described. Of a cerrado soil sample, metageno
Publicado em: 2006
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9. Levantamento e avaliação de critérios para a ampliação de escala da produção de biossurfactantes utilizando melaço como substrato
Biosurfactants are amphiphilic molecules synthesized by microorganisms such as bacteria, yeast or filamented fungi cultivated in various carbon sources among sucrose and hydrocarbons. These molecules are composed by a hydrophilic and hydrophobic part. They operate mostly at interfaces of fluids of different polarities. Because of this characteristic, they ar
Publicado em: 2006
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10. Vida útil dos mexilhões Perna perna cultivados no litoral norte de São Paulo: aferição dos parâmetros físico-químicos e microbiológicos. / The mussels Perna perna shelf-life cultivated in the são paulo state north coast: gauging of the physicochemistry and microbiological parameters.
The quality for consumption of the bivalve mollusks is intimately linked to the environment quality, where these are inserted. In function of the current environmental degradation caused by the growth population and consequent increase in the discharge of sewage in the environment, as well as, for the absence of quality management programs of the cultivation
Publicado em: 2004
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11. Screening of Brazilian basidiomycetes for antimicrobial activity
A total of 103 isolates of basidiomycetes, representing 84 species from different Brazilian ecosystems, were evaluated for their antifungal and antibacterial activity in a panel of pathogenic and non-pathogenic microorganisms. Tissue plugs of the fruiting bodies were cultivated in liquid media and the whole culture extracted with ethyl acetate. Crude extract
Memórias do Instituto Oswaldo Cruz. Publicado em: 2003-10
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12. Supressividade de um solo a murcha-de-fusário do caupi e influência da doença no rendimento da cultura
The Fusarium wilt, caused by Fusarium oxysporum f. sp. tracheiphilum, reduces cowpea yield in Northeastern Brazil. This work aimed to characterize the nature and ability to transfer cowpea Fusarium wilt suppressiveness of a soil; to analyze populational dynamic of F. oxysporum f. sp. tracheiphilum and others soilborne microorganisms in two soils with differe
Publicado em: 2003