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da Silva KC, Cunha MPV, Cerdeira L, de Oliveira MGX, de Oliveira MCV, Gomes CR, Lincopan N, Knöbl T, Moreno AM. High-virulence CMY-2- and CTX-M-2-producing avian pathogenic Escherichia coli strains isolated from commercial turkeys. Diagn Microbiol Infect Dis 2016; 87:64-67. [PMID: 27773543 DOI: 10.1016/j.diagmicrobio.2016.10.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 09/21/2016] [Accepted: 10/05/2016] [Indexed: 11/25/2022]
Abstract
This study reports the high-virulence phylogenetic backgrounds of CMY-2- and CTX-M-2-producing avian pathogenic Escherichia coli strains isolated from turkeys sent to slaughter and condemned by airsacculitis in Brazil. Among 300 air sac samples, seven E. coli strains produced plasmid-mediated CMY-2-type AmpC, of which three carried also the blaCTX-M-2 Extended Spectrum Beta-Lactamase encoding gene. Interestingly, the transfer of the blaCMY-2 gene was positive for three E. coli strains, being associated with the presence of IncI1 plasmids. The complete sequence of the representative pJB10 plasmid revealed that the blaCMY-2 gene was within a transposon-like element in the classical genetic environment consisting of tnpA-blaCMY-2-blc-sugE structure. This plasmid with 94-kb belonged to the sequence type (ST) 12 among IncI1 plasmids, which has been associated with the worldwide spread of blaCMY-2 among Salmonella enterica and E. coli. Furthermore, to the best of our knowledge, this is the first complete sequence of a CMY-2-encoding plasmid derived from an Escherichia coli isolated from food-producing animals in Latin America.
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Affiliation(s)
- Ketrin Cristina da Silva
- Department of Preventive Veterinary Medicine and Animal Health, University of São Paulo, College of Veterinary Medicine and Zootechny, São Paulo, Brazil
| | - Marcos Paulo Vieira Cunha
- Department of Pathology, University of São Paulo, College of Veterinary Medicine and Zootechnics, São Paulo, Brazil
| | - Louise Cerdeira
- Department of Clinical Analysis, School of Pharmacy, University of São Paulo, São Paulo, Brazil
| | | | | | - Cleise Ribeiro Gomes
- Department of Preventive Veterinary Medicine and Animal Health, University of São Paulo, College of Veterinary Medicine and Zootechny, São Paulo, Brazil
| | - Nilton Lincopan
- Department of Clinical Analysis, School of Pharmacy, University of São Paulo, São Paulo, Brazil; Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Terezinha Knöbl
- Department of Pathology, University of São Paulo, College of Veterinary Medicine and Zootechnics, São Paulo, Brazil
| | - Andrea Micke Moreno
- Department of Preventive Veterinary Medicine and Animal Health, University of São Paulo, College of Veterinary Medicine and Zootechny, São Paulo, Brazil.
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Oliveira T, Mucha AP, Reis I, Rodrigues P, Gomes CR, Almeida CMR. Copper phytoremediation by a salt marsh plant (Phragmites australis) enhanced by autochthonous bioaugmentation. Mar Pollut Bull 2014; 88:231-238. [PMID: 25240741 DOI: 10.1016/j.marpolbul.2014.08.038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 08/21/2014] [Accepted: 08/27/2014] [Indexed: 06/03/2023]
Abstract
Here we evaluated whether the potential of Phragmites australis to phytoremediate Cu contaminated sediments could be enhanced by bioaugmentation with an autochthonous microorganism consortium (AMC) that is resistant to Cu. Saltmarsh plants with sediment attached to their roots were collected, placed in vessels and kept in greenhouses, under tidal simulation. Sediments were contaminated with Cu and the AMC was added to half of the vessels. After two months, plants accumulated significant amounts of Cu (2-10 times more) in all tissues although in higher amounts (7-10 times more) in belowground structures. AMC addition increased Cu bioavailability (5-10%) in sediments leading to a decrease in belowground structures biomass. However, bioaugmentation increased Cu translocation, with higher amounts (2 times more) of Cu in the plant stems, without significant visual toxicity signs. Therefore, autochthonous bioaugmentation can increase Cu phytoextraction potential of P. australis, which can be a valuable strategy for the recovery and management of moderately impacted estuaries.
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Affiliation(s)
- T Oliveira
- CIMAR/CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Rua dos Bragas, 289, 4050-123 Porto, Portugal; Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal
| | - A P Mucha
- CIMAR/CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Rua dos Bragas, 289, 4050-123 Porto, Portugal
| | - I Reis
- CIMAR/CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Rua dos Bragas, 289, 4050-123 Porto, Portugal
| | - P Rodrigues
- CIMAR/CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Rua dos Bragas, 289, 4050-123 Porto, Portugal
| | - C R Gomes
- CIMAR/CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Rua dos Bragas, 289, 4050-123 Porto, Portugal; Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal
| | - C M R Almeida
- CIMAR/CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Rua dos Bragas, 289, 4050-123 Porto, Portugal.
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Ferreira TSP, Felizardo MR, Sena de Gobbi DD, Gomes CR, Nogueira Filsner PHDL, Moreno M, Paixão R, Pereira JDJ, Micke Moreno A. Virulence genes and antimicrobial resistance profiles of Pasteurella multocida strains isolated from rabbits in Brazil. ScientificWorldJournal 2012; 2012:685028. [PMID: 22919347 PMCID: PMC3417173 DOI: 10.1100/2012/685028] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2012] [Accepted: 06/29/2012] [Indexed: 11/17/2022] Open
Abstract
Pasteurella multocida is responsible for a wide range of diseases in domestic animals. In rabbits, the agent is related to nasal discharge, pneumonia, otitis media, pyometra, orchitis, abscess, and septicemia. One hundred and forty rabbits with respiratory diseases from four rabbitries in São Paulo State, Brazil were evaluated for the detection of P. multocida in their nasal cavities. A total of twenty-nine animals were positive to P. multocida isolation, and 46 strains were selected and characterized by means of biochemical tests and PCR. P. multocida strains were tested for capsular type, virulence genes, and resistance profile. A total of 45.6% (21/46) of isolates belonged to capsular type A, and 54.34% (25/46) of the isolates were untypeable. None of the strains harboured toxA or pfhA genes. The frequency of the other twenty genes tested was variable, and the data generated was used to build a dendrogram, showing the relatedness of strains, which were clustered according to origin. Resistance revealed to be more common against sulfonamides and cotrimoxazole, followed by erythromycin, penicillin, and amoxicillin.
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Affiliation(s)
- Thais Sebastiana Porfida Ferreira
- Programa de Epidemiologia Experimental Aplicada às Zoonoses, Laboratório de Sanidade Suína e Virologia, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brazil
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Miraglia F, Moreno AM, Gomes CR, Paixão R, Liuson E, Morais ZM, Maiorka P, Seixas FK, Dellagostin OA, Vasconcellos SA. Isolation and characterization of Leptospira interrogans from pigs slaughtered in São Paulo State, Brazil. Braz J Microbiol 2008; 39:501-7. [PMID: 24031254 PMCID: PMC3768438 DOI: 10.1590/s1517-838220080003000017] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2007] [Revised: 11/22/2007] [Accepted: 07/06/2008] [Indexed: 05/01/2023] Open
Abstract
With the aim of isolating Leptospira spp., blood serum, kidney, liver and genital tract of 137 female swine (40 sows and 97 gilts) and also urine samples from 22 sows were collected in a slaughterhouse in the State of São Paulo, from April 2003 to August 2004. Four isolates were obtained from animals that presented microagglutination test (MAT) titers ≥ 100 for the serovar Pomona and one was obtained from an animal negative by MAT in which Leptospira was isolated from the liver and reproductive tract. The presence of leptospiral DNA was investigated by PCR, and positive results were found in kidneys of 11 females, liver of two, genital tract of two and urine of one of them. Nephrosis, interstitial multifocal nephritis, moderate to severe changing, hyalines cylinders and hemorrhagic focuses, hepatic and uterine horns congestion were histological lesions observed in higher frequency in animals positive for leptospira. The silver impregnation (Warthin Starry) confirmed the presence of spirochetes in renal tubules of four females with positive leptospira cultures from kidneys. The serogroup of the five isolates was identified as Pomona by cross agglutination with reference polyclonal antibodies. Molecular characterization of the isolates was carried out by variable-number tandem-repeats analysis. All the isolates revealed a pattern distinct from the L. interrogans Pomona type strain, but identical to a previously identified pattern from strains isolated in Argentina belonging to serovar Pomona.
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Affiliation(s)
- Fabiana Miraglia
- Departamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo , São Paulo, SP , Brasil
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Miraglia F, Moreno AM, Gomes CR, Paixão R, Liuson E, Morais ZM, Maiorka P, Seixas FK, Dellagostin OA, Vasconcellos SA. Isolation and characterization of Leptospira interrogans from pigs slaughtered in São Paulo State, Brazil. Braz J Microbiol 2008. [DOI: 10.1590/s1517-83822008000300017] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Villarreal LYB, Assayag MS, Brandão PE, Chacón JLV, Bunger AND, Astolfi-Ferreira CS, Gomes CR, Jones RC, Ferreira AJP. Identification of turkey astrovirus and turkey coronavirus in an outbreak of Poult Enteritis and Mortality Syndrome. Rev Bras Cienc Avic 2006. [DOI: 10.1590/s1516-635x2006000200010] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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