Related Experiment Video

Updated: Sep 23, 2026

Identification of Novel Genes Associated with Alginate Production in Pseudomonas aeruginosa Using Mini-himar1 Mariner Transposon-mediated Mutagenesis
08:57

Identification of Novel Genes Associated with Alginate Production in Pseudomonas aeruginosa Using Mini-himar1 Mariner Transposon-mediated Mutagenesis

Published on: March 10, 2014

12.9K

Draft Genome Sequence of Pseudomonas aeruginosa Strain WS394, a Multidrug-Resistant and Highly Cytotoxic Wound

Frank-Jörg Vorhölter1, Martin Arnold, Daniel Wibberg1

  • 1CeBiTec (Center for Biotechnology), Universität Bielefeld, Bielefeld, Germany.

Genome Announcements
|December 20, 2014
PubMed

Insights

Pseudomonas aeruginosa, a common pathogen, can cause chronic wound infections. This study details the genome of a multidrug-resistant strain, revealing high cytotoxicity despite defective exotoxin U secretion, suggesting adaptation to its wound environment.

Area of Science:

  • Microbiology
  • Genomics
  • Infectious Diseases

Background:

  • Pseudomonas aeruginosa is a significant opportunistic pathogen.
  • It frequently causes chronic infections, particularly in nonhealing wounds.
  • Multidrug resistance in P. aeruginosa complicates treatment.

Purpose of the Study:

  • To present the draft genome sequence of P. aeruginosa strain WS394.
  • To investigate the genetic basis for the high cytotoxicity of this chronic ulcer isolate.
  • To explore potential habitat-dependent adaptations in P. aeruginosa.

Main Methods:

  • Whole-genome sequencing of P. aeruginosa strain WS394.
  • Bioinformatic analysis of the draft genome.
  • Assessment of bacterial cytotoxicity in vitro.

Main Results:

  • The draft genome size of strain WS394 is 6.8 Mb.
  • Strain WS394 is multidrug-resistant.
  • The strain exhibits high cell cytotoxicity, even with defective secretion of exotoxin U.

Conclusions:

  • The genome sequence provides a resource for studying P. aeruginosa adaptation.
  • Defective exotoxin U secretion may be compensated by other virulence factors or host interactions.
  • Habitat-specific adaptations likely contribute to the virulence of chronic wound isolates.

More Related Videos

Replication of the Ordered, Nonredundant Library of Pseudomonas aeruginosa strain PA14 Transposon Insertion Mutants11:35

Replication of the Ordered, Nonredundant Library of Pseudomonas aeruginosa strain PA14 Transposon Insertion Mutants

Published on: May 4, 2018

8.7K
Generation of In-Frame Gene Deletion Mutants in Pseudomonas aeruginosa and Testing for Virulence Attenuation in a Simple Mouse Model of Infection08:34

Generation of In-Frame Gene Deletion Mutants in Pseudomonas aeruginosa and Testing for Virulence Attenuation in a Simple Mouse Model of Infection

Published on: January 8, 2020

7.4K

Related Concept Videos

Gene Regulation in Microbial Communities: Quorum Sensing01:28

Gene Regulation in Microbial Communities: Quorum Sensing

Quorum sensing is a mechanism of bacterial communication that enables coordinated gene expression in response to changes in population density. This facilitates collective behaviors that enhance survival, resource acquisition, and ecological adaptation. This process relies on small signaling molecules called autoinducers that accumulate as bacterial populations grow. When a critical threshold concentration of autoinducers is reached, bacterial cells collectively modify gene expression,...