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Registros recuperados: 16 | |
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Novais,Rogério Carlos; Chaves,Marcela Cassin; Gonzalez,Alice Gonçalves Martins; Andrade,João Ramos Costa. |
tRNA genes are known target sites for the integration of pathogenicity islands (PAI) and other genetic elements, such as bacteriophages, into bacterial genome. In most STEC (Shiga toxin-producing Escherichia coli), the PAI called LEE (locus of enterocyte effacement) is related to bacterial virulence and is mostly associated to the tRNA genes selC and pheU. In this work, we first investigated the relationship of LEE with tRNA genes selC and pheU in 43 STEC strains. We found that 28 strains (65%) had a disrupted selC and/or pheU. Three of these strains (637/1, 650/5 and 654/3) were chosen to be submitted to a RAPD-PCR technique modified by the introduction of specific primers (corresponding to the 5'end of genes selC and pheU) into the reaction, which we... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pathogenicity islands; TRNA; STEC; RAPD-PCR; E.coli. |
Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000400020 |
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Serais, Ophelie. |
Trois points de suivi de tellines ont été échantillonnés de manière irrégulière entre juillet 2006 et décembre 2008, dans le cadre de l’étude de la zone n°11.21 « Bande littorale de Port la Nouvelle à la Franqui », avec le concours du Comité Local des Pêches de Port Vendres et la Prud’homie de Bages-Port la Nouvelle pour la réalisation des prélèvements. Le traitement des données acquises, permet d’estimer en B la qualité microbiologique de la zone n°11.21 pour le groupe 2 selon le règlement (CE) n°854/2004. Les résultats des analyses chimiques sont compatibles avec cette estimation en B de la qualité. Les résultats ne mettent pas en évidence de différence statistiquement significative entre les niveaux de contamination mesurés au niveau des trois points de... |
Tipo: Text |
Palavras-chave: Etude de zone; N°11.12 Sud et n°11.21; Qualité microbiologique estimée; E.coli; Coquillages fouisseurs. |
Ano: 2009 |
URL: https://archimer.ifremer.fr/doc/00514/62606/66966.pdf |
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Thomas, Gerard; Piquet, Jean-come; Ryckaert, Mireille; Masson, Daniel; Pepin, Jean-francois; Polsenaere, Pierre; Fillon, Alain. |
Marine environment contamination can affect fishing and shellfish farming products (and shellfish in the first place), thus making them improper for human consumption, threatening public health and producer’s business. Analysis and health risk management are mandatory for consumer’s security and shellfish production survival. About microbial risk, monitoring shellfish production areas and several studies carried by LERPC laboratory give a good view of the microbial contamination impacting the Pertuis Charentais shellfish production area. On the other hand, State-Region Plan Contract (CPER) studies results from 2007 to 2013 are presented and discussed; additionally, the law-prescribed sanitary studies for professional on foot-fishing classification are... |
Tipo: Text |
Palavras-chave: Microbiologie; E. coli; Norovirus; Étude sanitaire; Conchyliculture; Pêche à pied professionnelle; Pertuis Charentais; Microbiology; E.coli; Norovirus; Sanitary(health) studies; Shellfish farming; On foot]fishing; Pertuis Charentais.. |
Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00302/41299/40472.pdf |
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Machado,DN; Lopes,ES; Albuquerque,AH; Horn,RV; Bezerra,WGA; Siqueira,RAS; Lopes,IT; Nunes,FP; Teixeira,RSC; Cardoso,WM. |
ABSTRACT The psittacine Pyrrhura griseipectus is a threatened species currently only found in Ceará State, Brazil. A microbiological survey was conducted to determine the composition of the enteric microbiota of this species, as well as the phenotypic profiles of antimicrobial susceptibility presented by the isolates. Cloacal swabs were collected from individual birds and submitted to microbiological processing. Antimicrobial susceptibility profiles were evaluated using the disk diffusion method. Bacteria of the genus Escherichia, Proteus, Citrobacter, Pantoea, Klebsiella, Enterobacter, Morganella, Hafnia, Enterobacter, and Serratia were isolated. The most frequently isolated species were Escherichia coli, Proteus mirabilis and Proteus vulgaris,... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacterial resistance; E.coli; Psittacine; Wild birds.. |
Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000100103 |
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Dalto,D.B.; Gavioli,D.F.; Oliveira,E.R.; Silva,R.A.M.; Tarsitano,M.A.; Altmann,Á.H.S.; Braz,D.B.; Kobayashi,R.K.T.; Venâncio,E.J.; Bridi,A.M.; Bracarense,A.P.F.R.L.; Silva,C.A.. |
Foram avaliados os efeitos do plasma sanguíneo desidratado (PSD) sobre desempenho, perfil imunológico, histológico, microbiológico e peso de órgãos de leitões leves, desmamados aos 21 dias de idade. Foram utilizados 24 leitões, com idade média inicial de 21 dias, em delineamento experimental completamente ao acaso. Os tratamentos foram: T1 - animais pesados ao desmame, sem suplementação com PSD; T2 - animais leves ao desmame, suplementados com 10g/animal/dia de PSD; T3 - animais leves ao desmame, suplementados com 20g/animal/dia de PSD; T4 - animais leves ao desmame, sem suplementação com PSD. A adição de 20g de PSD na dieta melhorou o ganho diário de peso, aumentou o peso (g/kg) do baço e o título de IgA no soro entre 21 e 31 dias de idade. A inclusão de... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Suíno; Plasma sanguíneo desidratado; Intestino delgado; Imunoglobulinas; E.coli. |
Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352013000100028 |
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Ugrinovich,Leila Aidar; De Ávila,Fernando Antonio; Oliveira,Maria Natália; Castro,Antonio Fernando Pestana de. |
Examinando 52 espécimes fecais de bezerros com diarréia de fazendas da região de Jaboticabal, SP, Brasil, uma das amostras de Escherichia coli isoladas, quando analisada pela Reação em Cadeia da Polimerase (PCR), demonstrou a presença dos genes que codificam para a enterotoxina termolábil do tipo LT-II. Este é o primeiro relato de amostra de E. coli enterotoxigênica, isolada de bezerros com diarréia no Brasil, contendo os genes para codificação da enterotoxina LT-II. Encontram-se apenas citações de isolamento no Brasil de amostras de E. coli LT-II+ de alimentos de origem animal. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: E.coli; Enterotoxina LT-II; Detecção do gene; PCR; Brasil. |
Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782002000200017 |
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Registros recuperados: 16 | |
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