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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Avaliação da patogenia de estirpes de Salmonella enterica SUBSP. enterica sorotipo Gallinarum biovar Gallinarum com os genes responsáveis pela expressão de flagelo ativos
TL;DR: The present study aimed at comparing the pathogenicity of SG Fla, SG Fla and SG to birds, finding that both SG and SG Fla were more pathogenic than the wild type strain.
Posted ContentDOI
Fight not flight: parasites drive the bacterial evolution of resistance, not avoidance
TL;DR: In the face of ubiquitous threats from parasites, hosts often evolve strategies to resist infection or to altogether avoid contact with parasites as discussed by the authors , but it is unknown whether bacteria evolve avoidance of phages.
Caractérisation de la régulation de la motilité bactérienne de type swarming et des différences génétiques associées aux modes de croissance en surface ou en bouillon chez Pseudomonas aeruginosa.
TL;DR: La proteine RsmA, sous le controle post-traductionnel des petits ARN (pARN) RsmY and RsmZ, serait l’element central par lequel plusieurs S2C, responsables of the transition aigue/chronique, convergent, y a ensuite ete rapporte that la proteine rsmA (un represseur post-transcriptionnel liant l”AR
Journal Article
Caracterización de Staphylococcus Aureus aislados del personal de salud de un hospital de mediana complejidad de la ciudad de Cali en el año 2012
TL;DR: Estudios of Staphylococcus aureus in health personnel reduce its spread in nosocomial infections and improve the quality of life of patients and mejorar the calidad of vida of patients.
Journal ArticleDOI
Examination of the global regulon of CsrA in Xanthomonas citri subsp. citri using quantitative proteomics and other approaches
TL;DR: The RNA-binding protein CsrA is a global posttranscriptional regulator and controls many physiological processes and virulence traits as discussed by the authors, and deletion of csrA caused loss of virulence, reduced motility, and reduced gene expression.
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.
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.