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| Ortiz-Severín,Javiera; Varas,Macarena; Bravo-Toncio,Catalina; Guiliani,Nicolás; Chávez,Francisco P. |
| BACKGROUND: Pseudomonas aeruginosa is known to be a multidrug resistant opportunistic pathogen. Particularly, P. aeruginosa PAO1 polyphosphate kinase mutant (ppk1) is deficient in motility, quorum sensing, biofilm formation and virulence FINDINGS: By using Phenotypic Microarrays (PM) we analyzed near 2000 phenotypes of P. aeruginosa PAO1 polyP kinase mutants (ppk1 and ppk2). We found that both ppk mutants shared most of the phenotypic changes and interestingly many of them related to susceptibility toward numerous and different type of antibiotics such as Ciprofloxacin, Chloramphenicol and Rifampicin CONCLUSIONS: Combining the fact that ppk1 mutants have reduced virulence and are more susceptible to antibiotics, polyP synthesis and particularly PPK1, is a... |
| Tipo: Journal article |
Palavras-chave: Antibiotic susceptibility; Polyphosphate kinase; Pseudomonas; Phenome; Phenotypic microarrays; Multidrug resistance. |
| Ano: 2015 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602015000100022 |
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| Sreedharan,Krishnan; Philip,Rosamma; Singh,Isaac Sarojani Bright. |
| Aeromonas spp. are ubiquitous aquatic organisms, associated with multitude of diseases in several species of animals, including fishes and humans. In the present study, water samples from two ornamental fish culture systems were analyzed for the presence of Aeromonas. Nutrient agar was used for Aeromonas isolation, and colonies (60 No) were identified through biochemical characterization. Seven clusters could be generated based on phenotypic characters, analyzed by the programme NTSYSpc, Version 2.02i, and identified as: Aeromonas caviae (33.3%), A. jandaei (38.3%) and A. veronii biovar sobria (28.3%). The strains isolated produced highly active hydrolytic enzymes, haemolytic activity and slime formation in varying proportions. The isolates were also... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aeromonas; Antibiotic susceptibility; Ornamental fish culture systems; Virulence. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000200040 |
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| Quiroga,M.; Pegels,E.; Oviedo,P.; Pereyra,E.; Vergara,M.. |
| This study was performed to determine the susceptibility patterns and the colonization rate of Group B Streptococcus (GBS) in a population of pregnant women. From January 2004 to December 2006, vaginal-rectal swabs were obtained from 1105 women attending Dr. Ramón Madariaga Hospital, in Posadas, Misiones, Argentina. The carriage rate of GBS among pregnant women was 7.6%. A total of 62 GBS strains were randomly selected for in vitro susceptibility testing to penicillin G, ampicillin, tetracycline, levofloxacin, gatifloxacin, ciprofloxacin, quinupristin-dalfopristin, linezolid, vancomycin, rifampicin, trimethoprim-sulfametoxazol, nitrofurantoin, gentamicin, clindamycin and erythromycin, and determination of resistance phenotypes. No resistance to penicillin,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Group B Streptococcus; Antibiotic susceptibility; Prevalence; Pregnant women; Argentina. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000200009 |
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| RAMOS,Gustavo Luis de Paiva Anciens; NASCIMENTO,Janaína dos Santos. |
| Abstract Although quite controversial from the point of view of food safety, a considerable number of people across different age and socioeconomic groups consume raw goat’s milk. Even if refrigerated after milking, raw goat's milk may still be susceptible to the lipolytic and proteolytic actions of psychrotrophic microorganisms, such as Pseudomonas. In this study, Pseudomonas sp. from 21 refrigerated raw goat’s milk samples were characterized. All samples were freely commercialized, without any type of inspection, by small producers and markets from different regions of Rio de Janeiro, Brazil. A total of 136 isolates were identified, most of which belonged to the species, P. putida, P. koreensis, P. monteilii, and P. fluorescens. The production of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Refrigerated raw goat’s milk; Pseudomonas spp.; Antibiotic susceptibility; Proteolytic and lipolytic activity; Biofilm production; Antibiotic resistance. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005007203 |
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