Journal ArticleDOI
Bacterial motility on a surface: many ways to a common goal.
TLDR
This review focuses mainly on surface motility and makes comparisons to features shared by other surface phenomenon.Abstract:
When free-living bacteria colonize biotic or abiotic surfaces, the resultant changes in physiology and morphology have important consequences on their growth, development, and survival. Surface motility, biofilm formation, fruiting body development, and host invasion are some of the manifestations of functional responses to surface colonization. Bacteria may sense the growth surface either directly through physical contact or indirectly by sensing the proximity of fellow bacteria. Extracellular signals that elicit new gene expression include autoinducers, amino acids, peptides, proteins, and carbohydrates. This review focuses mainly on surface motility and makes comparisons to features shared by other surface phenomenon.read more
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Uropathogenic Escherichia coli fl agella aid in effic ient urinary tract colonization
TL;DR: It is demonstrated that flagella are neither essential nor required for first- or second-generation IBC formation, however, in competition experiments between wt and ΔfliC strains, the wt was shown to have a fitness advantage in persisting throughout the urinary tract for 2 weeks, demonstrating a subtle but measurable role for flagellar in virulence.
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From cell differentiation to cell collectives: Bacillus subtilis uses division of labor to migrate
TL;DR: This study shows how flagellum-independent migration is driven by the division of labor of two cell types that appear during Bacillus subtilis sliding motility, and proposes that surfactin- producing cells reduce the friction between cells and their substrate, thereby facilitating matrix-producing cells to form bundles.
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Genome-Wide Screening of Genes Required for Swarming Motility in Escherichia coli K-12
TL;DR: Lipopolysaccharide and the enterobacterial common antigen may be important surface-acting components that contribute to the reduction of surface tension, thereby facilitating the swarm migration in the E. coli K-12 strain.
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Genetic analysis of surface motility in Acinetobacter baumannii
TL;DR: Transposon mutagenesis was used to identify additional genes required for motility and revealed loci encoding various functions: non-ribosomal synthesis of a putative lipopeptide, a sensor kinase (BfmS), a lytic transglycosylase, O-antigen biosynthesis, an outer membrane porin (OmpA) and de novo purine biosynthesis (PurK).
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Swarmer cell differentiation in Proteus mirabilis
TL;DR: The genetic and environmental requirements for swarmer cell differentiation will be outlined and the role of the differentiated swarMER cell in virulence and its possible role in biofilm formation will be discussed.
References
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Book
Escherichia coli and Salmonella :cellular and molecular biology
TL;DR: The Enteric Bacterial Cell and the Age of Bacteria Variations on a Theme by Escherichia is described.
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Quorum Sensing in Bacteria
TL;DR: The evolution of quorum sensing systems in bacteria could, therefore, have been one of the early steps in the development of multicellularity.
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Biofilm Formation as Microbial Development
TL;DR: The results reviewed in this article indicate that the formation of biofilms serves as a new model system for the study of microbial development.
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Biofilms as complex differentiated communities.
TL;DR: It is submitted that complex cell-cell interactions within prokaryotic communities are an ancient characteristic, the development of which was facilitated by the localization of cells at surfaces, which may have provided the protective niche in which attached cells could create a localized homeostatic environment.
Journal ArticleDOI
Flagellar and twitching motility are necessary for Pseudomonas aeruginosa biofilm development
George A. O'Toole,Roberto Kolter +1 more
TL;DR: The isolation and characterization of mutants of Pseudomonas aeruginosa PA14 defective in the initiation of biofilm formation on an abiotic surface, polyvinylchloride (PVC) plastic are reported and evidence that microcolonies form by aggregation of cells present in the monolayer is presented.