Sphingomonas Spp
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. Capacidade de inativação de desinfetantes sobre microorganismos isolados de superfícies fixas em áreas críticas de um Hospital Veterinário de Ensino / Inactivation capability of disinfectants against microorganisms isolated from environmental surfaces in critical areas of a veterinary teaching hospital
Superfícies fixas contaminadas de hospitais de clínicas veterinárias podem servir como fonte de contaminação por microrganismos potencialmente patogênicos comuns entre animais e seres humanos, promovendo riscos de infecções nosocomiais tanto para os pacientes quanto para os profissionais, estudantes e trabalhadores em saúde veterinária. Com a final
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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2. Identificação e avaliação de rizobactérias isoladas de raízes de milho
Estudos sobre a atividade microbiológica que ocorre na rizosfera de diversos vegetais levaram ao descobrimento de grupos de microrganismos importantes para o desenvolvimento vegetal. Dentre eles estão as rizobactérias que são capazes de colonizar as raízes, estimulando-a diretamente ou beneficiando o crescimento e o desenvolvimento de diversas plantas.
Bragantia. Publicado em: 2010-12
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3. Poliphasic taxonomy of Sphingomonas spp. diazotrophic bacteria and effect of inoculation in rice plants. / Taxonomia polifásica de bactérias diazotróficas do gênero Sphingomonas spp. e efeito da inoculação em plantas de arroz.
O arroz (Oryza sativa L.) é um alimento extensamente consumido no planeta, suprindo mais de 50% da alimentação mundial. Aproximadamente 150 milhões de hectares são utilizados para seu cultivo, e destes, 32% crescem em condições de terras altas. O arroz é normalmente cultivado em solos com deficiência de N, exigindo que este elemento seja fornecido p
Publicado em: 2008
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4. In-Field Spatial Variability in the Degradation of the Phenyl-Urea Herbicide Isoproturon Is the Result of Interactions between Degradative Sphingomonas spp. and Soil pH
Substantial spatial variability in the degradation rate of the phenyl-urea herbicide isoproturon (IPU) [3-(4-isopropylphenyl)-1,1-dimethylurea] has been shown to occur within agricultural fields, with implications for the longevity of the compound in the soil, and its movement to ground- and surface water. The microbial mechanisms underlying such spatial var
American Society for Microbiology.
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5. Glutathione S-transferase-encoding gene as a potential probe for environmental bacterial isolates capable of degrading polycyclic aromatic hydrocarbons.
Homologs of the glutathione S-transferase (GST)-encoding gene were identified in a collection of aromatic hydrocarbon-degrading Sphingomonas spp. isolated from New Zealand, Antarctica, and the United States by using PCR primers designed from the GST-encoding gene of Sphingomonas paucimobilis EPA505. Sequence analysis of PCR fragments generated from these iso
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6. Root Nodule Bradyrhizobium spp. Harbor tfdAα and cadA, Homologous with Genes Encoding 2,4-Dichlorophenoxyacetic Acid-Degrading Proteins
The distribution of tfdAα and cadA, genes encoding 2,4-dichlorophenoxyacetate (2,4-D)-degrading proteins which are characteristic of the 2,4-D-degrading Bradyrhizobium sp. isolated from pristine environments, was examined by PCR and Southern hybridization in several Bradyrhizobium strains including type strains of Bradyrhizobium japonicum USDA110 and Bradyr
American Society for Microbiology.
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7. The First Step in Polyethylene Glycol Degradation by Sphingomonads Proceeds via a Flavoprotein Alcohol Dehydrogenase Containing Flavin Adenine Dinucleotide
Several Sphingomonas spp. utilize polyethylene glycols (PEGs) as a sole carbon and energy source, oxidative PEG degradation being initiated by a dye-linked dehydrogenase (PEG-DH) that oxidizes the terminal alcohol groups of the polymer chain. Purification and characterization of PEG-DH from Sphingomonas terrae revealed that the enzyme is membrane bound. The
American Society for Microbiology.
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8. Prevalent Bacterial Species and Novel Phylotypes in Advanced Noma Lesions
The purpose of this study was to determine the bacterial diversity in advanced noma lesions using culture-independent molecular methods. 16S ribosomal DNA bacterial genes from DNA isolated from advanced noma lesions of four Nigerian children were PCR amplified with universally conserved primers and spirochetal selective primers and cloned into Escherichia co
American Society for Microbiology.
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9. Bacterial Communities Associated with Flowering Plants of the Ni Hyperaccumulator Thlaspi goesingense
Thlaspi goesingense is able to hyperaccumulate extremely high concentrations of Ni when grown in ultramafic soils. Recently it has been shown that rhizosphere bacteria may increase the heavy metal concentrations in hyperaccumulator plants significantly, whereas the role of endophytes has not been investigated yet. In this study the rhizosphere and shoot-asso
American Society for Microbiology.
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10. Isolation of Adherent Polycyclic Aromatic Hydrocarbon (PAH)-Degrading Bacteria Using PAH-Sorbing Carriers
Two different procedures were compared to isolate polycyclic aromatic hydrocarbon (PAH)-utilizing bacteria from PAH-contaminated soil and sludge samples, i.e., (i) shaken enrichment cultures in liquid mineral medium in which PAHs were supplied as crystals and (ii) a new method in which PAH degraders were enriched on and recovered from hydrophobic membranes c
American Society for Microbiology.
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11. Identification of Hydrocarbon-Degrading Bacteria in Soil by Reverse Sample Genome Probing
Bacteria with limited genomic cross-hybridization were isolated from soil contaminated with C5+, a mixture of hydrocarbons, and identified by partial 16S rRNA sequencing. Filters containing denatured genomic DNAs were used in a reverse sample genome probe (RSGP) procedure for analysis of the effect of an easily degradable compound (toluene) and a highly reca
American Society for Microbiology.
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12. Molecular Analysis of Shower Curtain Biofilm Microbes
Households provide environments that encourage the formation of microbial communities, often as biofilms. Such biofilms constitute potential reservoirs for pathogens, particularly for immune-compromised individuals. One household environment that potentially accumulates microbial biofilms is that provided by vinyl shower curtains. Over time, vinyl shower cur
American Society for Microbiology.