Literature DB >> 8972088

Plasmid characterization and pulsed-field electrophoretic analysis demonstrate that ampicillin-resistant strains of Salmonella enteritidis phage type 6a are derived from Salm. enteritidis phage type 4.

A M Ridley1, P Punia, L R Ward, B Rowe, E J Threlfall.   

Abstract

Plasmid incompatibility studies have demonstrated that strains of Salmonella enteritidis phage type (PT) 6a resistant to ampicillin possess a 36 megadalton incompatibility group (Inc) X plasmid coding for resistance to ampicillin which is capable of converting strains of Salm. enteritidis belonging to PTs 1 and 4 to PT 6a, and PT 8 to PT 13. However, pulsed-field gel electrophoresis (PFGE) has demonstrated that all clinical isolates of PT 6a have a characteristic XbaI pulsed-field profile which is distinct from that of PT 1 and which can only be differentiated from that of PT 4 by the presence of plasmid-associated fragments of less than 45 kb. It is concluded that ampicillin-resistant strains of Salm. enteritidis PT 6a are derived from strains of Salm. enteritidis PT 4 by acquisition of an Inc X ampicillin resistance plasmid.

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Year:  1996        PMID： 8972088     DOI： 10.1111/j.1365-2672.1996.tb03555.x

Source DB:  PubMed          Journal:  J Appl Bacteriol        ISSN： 0021-8847


  7 in total

1.  Genotypic characterization of Salmonella enteritidis phage types by plasmid analysis, ribotyping, and pulsed-field gel electrophoresis.

Authors:  A M Ridley; E J Threlfall; B Rowe
Journal:  J Clin Microbiol       Date:  1998-08       Impact factor: 5.948

2.  Increasing genetic diversity of Salmonella enterica serovar typhi isolates from papua new guinea over the period from 1992 to 1999.

Authors:  Kwai-Lin Thong; Yee-Ling Goh; Rohani M Yasin; Ming Guek Lau; Megan Passey; Gibson Winston; Mition Yoannes; Tikki Pang; John C Reeder
Journal:  J Clin Microbiol       Date:  2002-11       Impact factor: 5.948

3.  Variants of smooth Salmonella enterica serovar Enteritidis that grow to higher cell density than the wild type are more virulent.

Authors:  J Guard-Petter
Journal:  Appl Environ Microbiol       Date:  1998-06       Impact factor: 4.792

4.  Epidemiological analysis of Salmonella enteritidis isolates from humans and broiler chickens in Thailand by phage typing and pulsed-field gel electrophoresis.

Authors:  S Boonmar; A Bangtrakulnonth; S Pornrunangwong; J Terajima; H Watanabe; K Kaneko; M Ogawa
Journal:  J Clin Microbiol       Date:  1998-04       Impact factor: 5.948

5.  An outbreak of human salmonellosis caused by ampicillin-resistant Salmonella enterica serovar Enteritidis PT13 in the Czech Republic.

Authors:  H Hradecka; I Kolackova; R Karpiskova; I Rychlik
Journal:  Epidemiol Infect       Date:  2006-01-18       Impact factor: 2.451

6.  Evolution and population structure of Salmonella enterica serovar Newport.

Authors:  Vartul Sangal; Heather Harbottle; Camila J Mazzoni; Reiner Helmuth; Beatriz Guerra; Xavier Didelot; Bianca Paglietti; Wolfgang Rabsch; Sylvain Brisse; François-Xavier Weill; Philippe Roumagnac; Mark Achtman
Journal:  J Bacteriol       Date:  2010-10-08       Impact factor: 3.490

7.  Salmonella enterica serovar Enteritidis, Japan.

Authors:  Hidemasa Izumiya; Naomi Nojiri; Yoshiko Hashiwata; Kazumichi Tamura; Jun Terajima; Haruo Watanabe
Journal:  Emerg Infect Dis       Date:  2003-12       Impact factor: 6.883
  7 in total

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