Flagella
Mostrando 1-12 de 763 artigos, teses e dissertações.
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1. An investigation of virulence factors of Legionella pneumophila environmental isolates
ABSTRACT Nine Legionella pneumophila strains isolated from cooling towers and a standard strain (L. pneumophila serogroup 1, ATCC 33152, Philadelphia 1) were analyzed and compared in terms of motility, flagella structure, ability to form biofilms, enzymatic activities (hemolysin, nucleases, protease, phospholipase A, phospholipase C, acid phosphatase, alkali
Braz. J. Microbiol.. Publicado em: 2018-03
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2. Contribution of flagella and motility to gut colonisation and pathogenicity of Salmonella Enteritidis in the chicken
ABSTRACT Salmonella Enteritidis causes fowl paratyphoid in poultry and is frequently associated to outbreaks of food-borne diseases in humans. The role of flagella and flagella-mediated motility into host-pathogen interplay is not fully understood and requires further investigation. In this study, one-day-old chickens were challenged orally with a wild-type
Braz. J. Microbiol.. Publicado em: 2017-12
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3. Aspects of the reproductive biology of the freshwater/brackish amphipod Quadrivisio lutzi (Crustacea, Amphipoda) from an unstable coastal lagoon of southeastern Brazil
ABSTRACT The amphipod Quadrivisio lutzi (Shoemaker, 1933) (Maeridae) inhabits the coastal lagoons of southeastern Brazil, which are highly unstable environments. Drastic reduction in the abundance and distribution of this amphipod on these lagoons has been observed. The constant recovery of its populations suggests that this species may show a reproductive s
Nauplius. Publicado em: 19/04/2016
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4. Morphology, distribution and abundance of antennal sensilla of the oyster mushroom fly, Coboldia fuscipes (Meigen) (Diptera: Scatopsidae)
ABSTRACT We investigated the distribution, morphology and abundance of antennae sensilla of Coboldia fuscipes (Meigen) using scanning electron microscopy. Antennae of C. fuscipes consisted of scape, pedicel, and flagellum with eight flagellomeres. Antennal scape and pedicel had only one type of sensillum, i.e., sensilla chaetica. Significant differences were
Rev. Bras. entomol.. Publicado em: 2016-03
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5. Recovery of Salmonella Gallinarum in the Organs of Experimentally-Inoculated Japanese Quails (Coturnix coturnix)
ABSTRACTSalmonellosis is an infection caused by specific or non specific serotypes of theSalmonella genus, responsible for losses in the poultry industry. Fowl typhoid, caused by S. Gallinarum (SG) is important because it causes elevated mortality in adult birds, leading to economic losses in the poultry industry. This study aimed at quantifying the number o
Rev. Bras. Cienc. Avic.. Publicado em: 2015-09
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6. The prevalence of helicobacter pylori among dyspeptic patients in an earthquake-stricken area
OBJECTIVES: Helicobacter pylori is a gram-negative, spiral-shaped, urease-producing bacterium with multiple unipolar flagella. Humans are a major reservoir for H. pylori; however, there are no data on the prevalence of H. pylori among dyspeptic patients who have experienced natural disasters. Therefore, the aim of this study was to examine the prevalence of
Clinics. Publicado em: 2015-01
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7. Regulatory volume decrease in Leishmania mexicana: effect of anti-microtubule drugs
The trypanosomatid cytoskeleton is responsible for the parasite's shape and it is modulated throughout the different stages of the parasite's life cycle. When parasites are exposed to media with reduced osmolarity, they initially swell, but subsequently undergo compensatory shrinking referred to as regulatory volume decrease (RVD). We studied the effects of
Mem. Inst. Oswaldo Cruz. Publicado em: 2013-02
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8. INVESTIGAÇÃODE Salmonella sp. EM PSITTACIFORMES MANTIDOS EM CRIATÓRIOS COMERCIAIS E CONSERVACIONISTAS DA REGIÃO METROPOLITANA DE FORTALEZA-CEARÁ / RESEARCH Salmonella sp. MAINTAINED IN Psittaciformes in commercial houses and conservationists THE METROPOLITAN REGION OF FORTRESS-CEARÁ
Psittaciformes are the most popular pet birds in the world. Direct contact between humans and Psittaciformes is very comprehensive and the analysis of the bacterial flora of these birds is poorly known, and it can be highly pathogenic. Bacterial infections represent a major cause of enteric diseases in poultry, being the Salmonella one of the main agents inv
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/12/2011
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9. Production of native flagellin from Salmonella Typhimurium in a bioreactor and purification by tangential ultrafiltration
Flagellin is the structural protein and most abundant component of bacterial flagella. The flagellum filament contains around 20,000 - 100,000 subunits of 50 kDa flagellin that can have diverse biotechnological applications such as vaccine adjuvant and cellular protector during chemo- and radiotherapy. The main aim of this work was to study a production proc
Brazilian Journal of Chemical Engineering. Publicado em: 2011-12
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10. Identificação de novos antígenos flagelares e variação de fase em amostras de Escherichia coli isoladas de animais e alimentos / Identification of new flagellar antigen and phase variation in Escherichia coli isolated from animals and food
Escherichia coli é um membro comensal da microbiota de animais, porém podem causar doenças desde diarréias até sepses. A caracterização dos seus antígenos de superfície O (somático) e H (flagelar) auxilia na determinação de linhagens patogênicas dentro da espécie. Contudo, algumas bactérias não expressam flagelo in vitro, demonstrado que a am
Publicado em: 2010
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11. Role of the polar and a lateral flagella in Aeromonas caviae strains in the biofilm formation and cellular adherence / Papel dos flagelos polar e lateral em cepas de Aeromonas caviae na formação de biofilme e aderência celular
Aeromonas spp. são bactérias Gram negativas capazes de causar doenças intestinais e extra-intestinais. A virulência de algumas espécies do gênero já foi associada a diversos fatores, como a expressão de flagelos e conseqüente mobilidade bacteriana. Aeromonas caviae apresenta dois distintos sistemas flagelares, um deles responsável pela natação em
Publicado em: 2009
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12. Identificação de novos antigenos flagelares de Escherichia coli de origem humana / Identification of new Escherichia coli flagellar antigen from human origin
Escherichia coli has been isolated frequently, showing flagellar antigens that are not recognized by any of the antisera, provided by the most important reference center of E. coli, The International Escherichia and Klebsiella Centre (WHO) of the Statens Serum Institute, Copenhagen, Denmark. Are currently recognized 53 H antigens and in the last 29 years, no
Publicado em: 2009