Moraxella Bovis
Mostrando 1-12 de 49 artigos, teses e dissertações.
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1. Differences in the antimicrobial susceptibility profiles of Moraxella bovis, M. bovoculi and M. ovis
The aim of this study was to determine the differences in the antimicrobial susceptibility profiles of Moraxella bovis, M. bovoculi and M. ovis. Thirty-two strains of Moraxella spp. isolated from cattle and sheep with infectious keratoconjunctivitis were tested via broth microdilution method to determine their susceptibility to ampicillin, cefoperazone, ceft
Braz. J. Microbiol.. Publicado em: 2015-06
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2. Moraxella bovoculi em casos de ceratoconjuntivite infecciosa bovina no Rio Grande do Sul
A ceratoconjuntivite infecciosa (CI), embora raramente fatal, resulta em perdas econômicas significativas para os rebanhos bovinos e ovinos. Os principais agentes causadores dessa enfermidade são Moraxella bovis e Moraxella ovis. Em 2007 foi descrita uma nova espécie também responsável pela CI e denominada Moraxella bovoculi, que até o presente momento
Pesq. Vet. Bras.. Publicado em: 2012-08
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3. Surto de ceratoconjuntivite infecciosa bovina e hemoncose causando mortalidade em bezerros
É descrito um surto de ceratoconjuntivite infecciosa bovina (CIB) e hemoncose intercorrente afetando um grupo de 116 bezerros de 1-2 anos de idade na região central do Rio Grande do Sul. Vinte bezerros foram afetados e nove morreram. Os sinais clínicos incluíam perda de peso, marcada palidez da mucosa oral, lacrimejamento, opacidade focal da córnea e av
Pesquisa Veterinária Brasileira. Publicado em: 2011-05
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4. Susceptibilidade a antimicrobianos de cepas de Moraxella bovis recuperadas em surtos de Ceratoconjuntivite Infecciosa Bovina ocorridos na Argentina, Brasil e Uruguai entre 1974 e 2001
A susceptibilidade a antimicrobianos de trinta cepas de Moraxella bovis recuperadas entre 1974 e 2001 em surtos de Ceratoconjuntivite Infecciosa Bovina (CIB) ocorridos na Argentina, Brasil e Uruguai foi determinada pelos métodos de Kirby-Bauer e Concentração Inibitória Mínima. Nossos resultados indicam que a maioria das cepas é susceptível aos antibi�
Brazilian Journal of Microbiology. Publicado em: 2004-12
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5. Moraxella bovis: influência das características genotípicas e fenotípicas no controle da ceratoconjuntivite infecciosa bovina
A Ceratoconjuntivite Infecciosa Bovina (CIB) continua sendo a mais importante enfermidade ocular dos bovinos da região do MERCOSUL. O agente etiológico da CIB, a bactéria Moraxella bovis, apresenta diferenças genéticas que determinam variações antigênicas e de susceptibilidade aos fármacos, que dificultam seu controle. São discutidos, neste trabalh
Ciência Rural. Publicado em: 2003-08
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6. Identification of Moraxella bovis by qualitative genetic transformation and nutritional assays.
Strains of Moraxella bovis were identified definitively through the combined use of a qualitative genetic transformation assay and determination of the ability of the organism under examination to grow in a defined medium (medium MB). Except for weak transformation by DNA from strains of M. lacunata, M. nonliquefaciens, and M. (Branhamella) ovis, DNA samples
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7. Identification of Moraxella bovis by using a monoclonal antibody to a lipopolysaccharide epitope.
A monoclonal antibody to the lipopolysaccharide of Moraxella bovis is described. In an indirect fluorescent-antibody test, this monoclonal antibody reacted with 39 of 39 strains of M. bovis tested and did not react with 26 nonfermenting gram-negative coccobacilli other than M. bovis. When used in an indirect fluorescent-antibody test, it proved useful for ra
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8. Inhibition of Autoagglutination of Moraxella bovis by 10% Magnesium Chloride
A 10% solution of magnesium chloride was used to uniformly disperse Moraxella bovis, an organism that autoagglutinates in most liquid media. The magnesium chloride did not affect the viability or morphology of this organism.
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9. Characterization of the pilin gene of Moraxella bovis Dalton 2d and expression of pili from M. bovis in Pseudomonas aeruginosa.
The pilin gene of Moraxella bovis Dalton 2d was isolated by cloning in Pseudomonas aeruginosa. The nucleotide sequence of this gene encodes a prepilin of 156 amino acid residues. When high levels of pilin were expressed from the gene in P. aeruginosa, by using the pL promoter of bacteriophage lambda inserted upstream of the coding sequence, pili which were i
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10. Semiselective medium for isolation of Moraxella bovis from cattle with infectious keratoconjunctivitis.
The incorporation of 2.5 micrograms/ml of cloxacillin into 5% bovine blood agar provided an inexpensive, easily prepared culture medium for the primary isolation of Moraxella bovis from bovine lacrimal and nasal secretions. With this medium, the time required to identify and isolate M. bovis from large numbers of field specimens was substantially reduced, wh
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11. Hemagglutination, autoagglutination and pathogenicity of Moraxella bovis strains.
Three isolates of Moraxella bovis, recovered from cattle with signs of infectious bovine keratoconjunctivitis, were tested for autoagglutinating activity, hemagglutinating activity and pathogenicity in young calves. Only the autoagglutinating and hemagglutinating isolates were pathogenic in calves. Treatment of the pathogenic isolates with magnesium chloride
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12. Defined medium for Moraxella bovis.
A defined medium (medium MB) for Moraxella bovis was formulated. Nineteen strains grew well on medium MB. One strain was auxotrophic for asparagine, and another was auxotrophic for methionine. Strains of M. equi and M. lacunata also grew on medium MB. All strains had an absolute requirement for thiamine and were stimulated by or actually required the other g