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
Citations
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The wetting agent required for swarming in Salmonella enterica serovar typhimurium is not a surfactant.
TL;DR: No differences were found in the abilities of the media surrounding these cells, either wild type or mutant, to wet a low-energy surface (freshly prepared polydimethylsiloxane); although, their contact angles were smaller than that of the medium harvested from the underlying agar.
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S-layer glycoproteins and flagellins: reporters of archaeal posttranslational modifications.
TL;DR: Use of these well-characterized reporter proteins in the genetically tractable model organisms has allowed dissection of the pathways and characterization of many of the enzymes responsible for these modifications, and questions related to the heterogeneity associated with given modifications, such as differential or modulated glycosylation are considered.
Journal ArticleDOI
Flagellar motility of the pathogenic spirochetes
TL;DR: The current state of knowledge on the motility and biophysics of these organisms are described and evidence on how this knowledge can inform the understanding of spirochetal diseases is provided.
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Effect of Permeate Drag Force on the Development of a Biofouling Layer in a Pressure-Driven Membrane Separation System
TL;DR: Bacterial transport toward the membrane by permeate drag was found to be a mechanism by which cross-flow filtration contributes to the buildup of a biofouling layer that was more dominant than transport of nutrients.
Journal ArticleDOI
The Flagellar Sigma Factor FliA Is Required for Dickeya dadantii Virulence
TL;DR: The genome sequence of the Enterobacteriaceae phytopathogen Dickeya dadantii (formerly Erwinia chrysanthemi) revealed homologs of genes required for a complete flagellar secretion system and one flagellain gene as mentioned in this paper.
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.
Journal ArticleDOI
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.
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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.