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| Registros recuperados : 76 | |
| 41. |  | ALMEIDA, L. M.; NIELEN, S.; NÓBREGA, J. M.; CARNEIRO, V. T. de C.; ARAUJO, A. C. G. Análises da estrutura cromossômica de acesso diplóide sexual e tetraplóide apomítico de Brachiaria brizantha (Poaceae). In: CONGRESSO NACIONAL DE BOTÂNICA, 57.; ENCONTRO ESTADUAL DE BOTÂNICOS, 13.; ENCONTRO ESTADUAL DE HERBÁRIOS, 5., 2006, Gramado, RS. [Anais...]. Porto Alegre, RS: Sociedade Botânica do Brasil, 2006. Não paginado.| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 43. | | ZAFALON, L. F.; VERISSIMO, C. J.; MAMIZUKA, E. M.; MARTINS, K. B.; ALMEIDA, L. M.; VESCHI, J. L. A. Estafilococos resistentes à oxacilina isolados em casos de mastite subclínica em ovinos. Arquivos do Instituto Biológico, São Paulo, v. 79, n. 1, p. 1-7, 2012.| Biblioteca(s): Embrapa Pecuária Sudeste; Embrapa Semiárido. |
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| 45. | | MARTINS, K. B.; ZAFALON, L. F.; MAMIZUKA, E. M.; ALMEIDA, L. M. de; VERÍSSIMO, C. J.; ESTEVES, S. N. Detecção do gene mecA em estafilococos resistentes à oxacilina isolados dos casos de mastite subclínica em ovinos. In: CONGRESSO DE INICIAÇÃO CIENTÍFICA, 18., 2010, São Carlos, SP. Anais... São Carlos, SP: UFSCar, 2010.| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 46. | | CASTRO-GUEDES, C. F. de; ALMEIDA, L. M. de; PENTEADO, S. do R. C.; MOURA, M. O. Effect of different diets on biology, reproductive variables and life and fertility tables of Harmonia axyridis (Pallas) (Coleoptera, Coccinellidae). Revista Brasileira de Entomologia, v. 60, n. 3, p. 260-266, Jul./Set. 2016.| Biblioteca(s): Embrapa Florestas. |
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| 47. | | BASSI, L. S.; PANISSON, J. C.; ARAÚJO, R. A.; LUGARINI, L.; ALMEIDA, L. M.; MAIORKA, A.; KRABBE, E. L. Efeito da densidade nutricional sobre a ocorrência de miopatia do peito e drip loss em diferentes linhagens de frango de corte. In: CONGRESSO LATINO-AMERICANO DE NUTRIÇÃO ANIMAL, 8., 2018, Campinas. Anais... Campinas: CBNA, 2018.| Biblioteca(s): Embrapa Suínos e Aves. |
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| 48. | | FELIPE, F. I.; PAUILLO, L. F. O. e; ALMEIDA, L. M. de M. C.; KATO JUNIOR, E. T. Formas de coordenação das fecularias na compra de mandioca no Paraná. Revista de Política Agrícola, Brasília, DF, v. 29, n. 1, p. 59-72, jan./fev./mar. 2020. Título em inglês: Coordination forms in cassava starch factories the purchase of cassava.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 50. | | SUREK, D.; ALMEIDA, L. M.; PANISSON, J. C.; KRABBE, E. L.; OLIVEIRA, S. G.; ALBERTON, G. C.; MAIORKA, A. Impact of birth weight and daily weight gain during suckling on the weight gain of weaning piglets. Arquivo Brasileiro de Medicina Veterinária e Zootecnia, v. 71, n. 6, p. 2034-2040, 2019.| Biblioteca(s): Embrapa Suínos e Aves. |
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| 51. | | ARRUDA, T. P. de; CARDOZO, D. R.; ALMEIDA, L. M. M. C.; FERRANTE, V. L. S. B.; BERNARDES FILHO, R. Segurança alimentar no PDS Santa Helena. In: Revista de Política Agrícola, Brasília, DF, ano 26, n. 2, p. 31-44, abr./mai./jun. 2017.| Biblioteca(s): Embrapa Instrumentação; Embrapa Unidades Centrais. |
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| 52. | | MARSARO JÚNIOR, A. L.; QUEIROZ, D. L. de; BURCKHARDT, D.; PEREIRA, P. R. V. da S.; ALMEIDA, L. M. de. Primeiro registro de Platycorypha nigrivirga Burckhardt, 1987 (Hemiptera: psylloidea) em Tipuana tipu (Benth., 1898) (Fabaceae) no Rio Grande do Sul, Brasil. Revista de Agricultura, Piracicaba, v. 87, n. 2, p. 113-115, set. 2012. Comunicação científica.| Biblioteca(s): Embrapa Trigo. |
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| 53. | | MARSARO JUNIOR, A. L.; QUEIROZ, D. L. de; BURCKHARDT, D.; PEREIRA, P. R. V. da S.; ALMEIDA, L. M. de. Primeiro registro de Platycorypha nigrivirga Burckhardt, 1987 (Hemiptera: psylloidea) em Tipuana tipu (Benth., 1898) (Fabaceae) no Rio Grande do Sul, Brasil. Revista de Agricultura, v. 87, n. 2, p. 113-115, 2012. Comunicação científica.| Biblioteca(s): Embrapa Florestas. |
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| 55. | | ALVES, M. X. B.; MARTINIANO JR. A.; DRUMMOND, A. R. F.; PEREIRA, F. S. G.; MELO, G. O.; MELO, J. A.; ALMEIDA, L. M. Biodiesel de óleo de fritura: inclusão social e menos poluição em regiões metropolitanas. In: CONGRESSO BRASILEIRO DE MAMONA, 4.; SIMPÓSIO INTERNACIONAL DE OLEAGINOSAS ENERGÉTICAS, 1., 2010, João Pessoa. Inclusão social e energia: anais. Campina Grande: Embrapa Algodão, 2010.| Biblioteca(s): Embrapa Algodão. |
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| 56. | | ALMEIDA, L. M.; CIPRIANO, T. M.; BONFIM, K.; NOGUEIRA, E. O. P. e L.; RIBEIRO, S. da G.; ARAGAO, F. J. L. Begomovirus resistance in transgenic tomatoes. In: CONGRESSO BRASILEIRO DE BIOTECNOLOGIA, 3., 2010, Fortaleza. Programa e resumos. Brasília, DF: SBBiotec, 2010. p. 303.| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 59. | | SA JUNIOR, J. P. M. e; DANTAS, C. C.; SILVA, C. J. G. C. da; GODOY, M. O.; DALL'OLIO, A.; ALMEIDA, L. M. de. Caracterizacao do fosforo isotopicamente trocavel em solos das zonas da Mata e Agreste de Pernambuco. Pesquisas Agropecuarias no Nordeste, Recife, v.6, n.1, p.141-158, 1974.| Biblioteca(s): Embrapa Semiárido. |
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| 60. | | GONÇALVES, P. J.; FRANZEN, P. L.; CORREA, D. S.; ALMEIDA, L. M.; TAKARA, M.; ITO, A. S.; ZÍLIO, S. C.; BORISSEVITCH, I. E. Effects of environment on the photophysical characteristics of mesotetrakis methylpyridiniumyl porphyrin (TMPyP). Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, Amsterdam, v. 79, n. 5, p. 1532-1539, 2011.| Biblioteca(s): Embrapa Instrumentação. |
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| Registros recuperados : 76 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
09/12/2021 |
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Data da última atualização: |
09/12/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
ZORZI, F. M.; ZAFALON, L. F.; SANTOS, F. B.; NASCIMENTO, T. G.; BASÍLIO JUNIOR, I. D.; MAMIZUKA, E. M.; ALMEIDA, L. M. |
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Afiliação: |
FELIPE MENDES ZORZI, USP; LUIZ FRANCISCO ZAFALON, CPPSE; FRANKLIN BISPO SANTOS, Universidade Federal de Alagoas; TICIANO GOMES NASCIMENTO, Universidade Federal de Alagoas; IRINALDO DINIZ BASÍLIO-JÚNIOR, Universidade Federal de Alagoas; ELSA MASAE MAMIZUKA, USP; LARA MENDES ALMEIDA, Universidade Federal de Alagoas; Universidade de São Paulo. |
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Título: |
Virulence, agr groups, antimicrobial resistance and epidemiology of Staphylococcus aureus isolated from bovine subclinical mastitis. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Brazilian Journal of Veterinary Research and Animal Science, v.58, e186701, 2021. |
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ISSN: |
1678-4456 |
|
DOI: |
https://doi.org/10.11606/issn.1678-4456.bjvras.2021.186701 |
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Idioma: |
Inglês |
|
Conteúdo: |
Fifty-two Staphylococcus aureus recovered from papillary ostium and milk samples collected from cows with subclinical mastitis and milking environments in three small dairy herds located in southeastern Brazil were subjected to PCR identification based on the thermonuclease (nuc) gene. All the strains were submitted to in vitro antimicrobial susceptibility testing, and we investigated the sequence types (STs), agr groups (I-IV), virulence genes encoding for Microbial Surface Components Recognizing Adhesive Matrix Molecules (MSCRAMMs), biofilm-associated proteins, bi-component toxins, pyrogenic toxin superantigens, and enterotoxins. Screening for oxacillin resistance (2-6 μg/ml oxacillin), beta-lactamase activity assays, and PCR for the mecA/mecC genes detected 26 methicillin-susceptible S. aureus (MSSA) and 26 mec-independent oxacillin-nonsusceptible S. aureus (MIONSA). While MSSA isolates were found to be susceptible to all antimicrobial agents tested, or only resistant to penicillin and ampicillin, MIONSA isolates were multidrug-resistant. ST126-agr group II MSSA isolates were prevalent in milk (n=14) and carried a broad set of virulence genes (clfA, clfB, eno, fnbA, fiB, icaA, icaD, lukED, hla, and hlb), as well as the ST126-agrgroup II MIONSA isolated from milking liners (n=1), which also carried the etagene. ST1-agr group III MIONSA isolates (n=4) were found in papillary ostium and milk, but most MIONSA isolates (n=21), which were identified in both papillary ostium and milking liners, were agr-negative and assigned to ST126. The agr -negative and agr group III lineages showed a low potential for virulence. Studies on the characterization of bovine-associated MSSA/MIONSA are essential to reduce S. aureus mastitis to prevent economic losses in dairy production and also to monitor the zoonotic potential of these pathogens associated with invasive infections and treatment failures in healthcare. MenosFifty-two Staphylococcus aureus recovered from papillary ostium and milk samples collected from cows with subclinical mastitis and milking environments in three small dairy herds located in southeastern Brazil were subjected to PCR identification based on the thermonuclease (nuc) gene. All the strains were submitted to in vitro antimicrobial susceptibility testing, and we investigated the sequence types (STs), agr groups (I-IV), virulence genes encoding for Microbial Surface Components Recognizing Adhesive Matrix Molecules (MSCRAMMs), biofilm-associated proteins, bi-component toxins, pyrogenic toxin superantigens, and enterotoxins. Screening for oxacillin resistance (2-6 μg/ml oxacillin), beta-lactamase activity assays, and PCR for the mecA/mecC genes detected 26 methicillin-susceptible S. aureus (MSSA) and 26 mec-independent oxacillin-nonsusceptible S. aureus (MIONSA). While MSSA isolates were found to be susceptible to all antimicrobial agents tested, or only resistant to penicillin and ampicillin, MIONSA isolates were multidrug-resistant. ST126-agr group II MSSA isolates were prevalent in milk (n=14) and carried a broad set of virulence genes (clfA, clfB, eno, fnbA, fiB, icaA, icaD, lukED, hla, and hlb), as well as the ST126-agrgroup II MIONSA isolated from milking liners (n=1), which also carried the etagene. ST1-agr group III MIONSA isolates (n=4) were found in papillary ostium and milk, but most MIONSA isolates (n=21), which were identified in both papillary ostiu... Mostrar Tudo |
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Palavras-Chave: |
Accessory gene regulator (agr); MIONSA; MSSA. |
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Thesaurus NAL: |
Bovine mastitis. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/228813/1/VirulenceAgrGroups.pdf
|
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Marc: |
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024 7 $ahttps://doi.org/10.11606/issn.1678-4456.bjvras.2021.186701$2DOI
100 1 $aZORZI, F. M.
245 $aVirulence, agr groups, antimicrobial resistance and epidemiology of Staphylococcus aureus isolated from bovine subclinical mastitis.$h[electronic resource]
260 $c2021
520 $aFifty-two Staphylococcus aureus recovered from papillary ostium and milk samples collected from cows with subclinical mastitis and milking environments in three small dairy herds located in southeastern Brazil were subjected to PCR identification based on the thermonuclease (nuc) gene. All the strains were submitted to in vitro antimicrobial susceptibility testing, and we investigated the sequence types (STs), agr groups (I-IV), virulence genes encoding for Microbial Surface Components Recognizing Adhesive Matrix Molecules (MSCRAMMs), biofilm-associated proteins, bi-component toxins, pyrogenic toxin superantigens, and enterotoxins. Screening for oxacillin resistance (2-6 μg/ml oxacillin), beta-lactamase activity assays, and PCR for the mecA/mecC genes detected 26 methicillin-susceptible S. aureus (MSSA) and 26 mec-independent oxacillin-nonsusceptible S. aureus (MIONSA). While MSSA isolates were found to be susceptible to all antimicrobial agents tested, or only resistant to penicillin and ampicillin, MIONSA isolates were multidrug-resistant. ST126-agr group II MSSA isolates were prevalent in milk (n=14) and carried a broad set of virulence genes (clfA, clfB, eno, fnbA, fiB, icaA, icaD, lukED, hla, and hlb), as well as the ST126-agrgroup II MIONSA isolated from milking liners (n=1), which also carried the etagene. ST1-agr group III MIONSA isolates (n=4) were found in papillary ostium and milk, but most MIONSA isolates (n=21), which were identified in both papillary ostium and milking liners, were agr-negative and assigned to ST126. The agr -negative and agr group III lineages showed a low potential for virulence. Studies on the characterization of bovine-associated MSSA/MIONSA are essential to reduce S. aureus mastitis to prevent economic losses in dairy production and also to monitor the zoonotic potential of these pathogens associated with invasive infections and treatment failures in healthcare.
650 $aBovine mastitis
653 $aAccessory gene regulator (agr)
653 $aMIONSA
653 $aMSSA
700 1 $aZAFALON, L. F.
700 1 $aSANTOS, F. B.
700 1 $aNASCIMENTO, T. G.
700 1 $aBASÍLIO JUNIOR, I. D.
700 1 $aMAMIZUKA, E. M.
700 1 $aALMEIDA, L. M.
773 $tBrazilian Journal of Veterinary Research and Animal Science$gv.58, e186701, 2021.
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