The DOI matches its Crossref record; 41 of the 41 references it cites were found in a registry or an index.
Characterization of Colony Morphology Variants Isolated from Pseudomonas aeruginosa Biofilms
Open accessAbstract
In this study, we report the isolation of small, rough, strongly cohesive colony morphology variants from aging Pseudomonas aeruginosa PAO1 biofilms. Similar to many of the P. aeruginosa colony morphology variants previously described in the literature, these variants autoaggregate in liquid culture and hyperadhere to solid surfaces. They also exhibit increased hydrophobicity and reduced motility compared to the wild-type parent strain. Despite the similarities in appearance of our colony morphology variant isolates on solid medium, the isolates showed a range of responses in various phenotypic assays. These variants form biofilms with significant three-dimensional structure and more biomass than the wild-type parent. To further explore the nature of the variants, their transcriptional profiles were evaluated. The variants generally showed increased expression of the psl and pel loci, which have been previously implicated in the adherence of P. aeruginosa to solid surfaces. When a mutation in the psl locus was introduced into a colony morphology variant, the colony morphology was only partially affected, but hyperadherence and autoaggregation were lost. Finally, similar colony morphology variants were found in isolates from cystic fibrosis patients. These variants displayed many of the same characteristics as the laboratory variants, suggesting a link between laboratory and cystic fibrosis biofilms.
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Cited by
Bacterial competition: surviving and thriving in the microbial jungle
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Pseudomonas aeruginosa Lifestyle: A Paradigm for Adaptation, Survival, and Persistence
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Pseudomonas aeruginosa Biofilms
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Metadata
- Authors
- Kirisits, M. J., Prost, L., Starkey, M., & Parsek, M. R.
- Venue
- Applied and Environmental Microbiology
- Publisher
- American Society for Microbiology
- Published
- 2005-08
- Volume
- 71
- Issue
- 8
- Pages
- 4809-4821
- ISSN
- 0099-2240 (ISSN-L)
- 1098-5336
- OpenAlex
- W2020395033
- Cited by
- 290
- References
- 41
- FWCI
- 4.96
- Type
- journal article
- Language
- en
- Open access
- green
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- Kirisits, M. J., Prost, L., Starkey, M., & Parsek, M. R. (2005). Characterization of Colony Morphology Variants Isolated from Pseudomonas aeruginosa Biofilms. Applied and Environmental Microbiology. https://doi.org/10.1128/aem.71.8.4809-4821.2005
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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