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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Book ChapterDOI
Choosing the Right Lifestyle: Regulation of Developmental Pathways by Cyclic Di-GMP
TL;DR: The authors discuss the two lifestyles by defining the regulatory principles associated with c-di-GMP important for the transition between these lifestyles and the biofilm lifestyle and the transition to this lifestyle from a planktonic state.
Journal ArticleDOI
A reversible mutation in a genomic hotspot saves bacterial swarms from extinction
Idan Hefetz,Ofir Israeli,Gal Bilinsky,Inbar Plaschkes,Einat Hazkani-Covo,Zvi Hayouka,Ada Lampert,Yael Helman +7 more
TL;DR: In this article , the authors demonstrate that a hypermutable hotspot within a gene encoding a flagellar unit of Paenibacillus glucanolyticus generated spontaneous non-swarming mutants with increased stress resistance.
Journal Article
Quantifying Spatiotemporal Patterns in the Expansion of Twitching Bacterial Colonies
TL;DR: This work has developed experimental and data analysis techniques to quantify the expansion of twitching P. aeruginosa colonies at an agar-glass interface as a function of agar concentration C, and finds that the average finger width increases linearly with C, whereas theaverage finger speed is independent of C.
Posted ContentDOI
Efficient Long-Distance Transport in Upper Fluid of Bacterial Swarms
TL;DR: In this paper, the authors used gold nanorods (AuNRs) as single particle tracers to explore the spatiotemporal structure of the swarm fluid and observed that individual AuNRs are transported in a plane of 2 μm above the motile cells.
Journal ArticleDOI
CRISPRi-Mediated Gene Suppression Reveals Putative Reverse Transcriptase Gene PA0715 to Be a Global Regulator of Pseudomonas aeruginosa
TL;DR: In this article , the exact role of PA0715 in cell physiology and bacterial pathogenicity, providing important clues for antibiotic development, was determined, and the results provided a basis for future studies of potential antibiotic targets for Pseudomonas aeruginosa infection control.
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.
Journal ArticleDOI
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.
Journal ArticleDOI
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.