Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Biofilm dispersal"”.
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The genetics and phenotypes of Pseudomonas aeruginosa biofilm dispersal populations
… size of P. aeruginosa, and its ability to form biofilms. The typical biofilm life cycle culminates in dispersal, where cells are released from the biofilm to colonize new sites and it is often associated with the emergence of phenotypic variants. It was found that a CF isolate, P. aeruginosa …
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SRV REGULATION OF STREPTOCOCCAL BIOFILM DISPERSAL AND ITS IMPACT ON VIRULENCE
… for colonization is through the formation of a biofilm. A biofilm is a structured, sessile microbial community encased in an extracellular matrix and may provide protection from the immune response and antibiotic therapy. We and others have shown that GAS is able to form biofilms <italic>in …
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Evolution and phenotypic diversification in serratia marcescens biofilms
The release of cells from a biofilm to the surrounding environment is poorly understood and the importance of this stage of biofilm development has only recently been realized. A key part of this process is the generation of phenotypic variants in the biofilm dispersal population. This thesis …
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A bacterial biofilm study: from molecular regulation mechanisms in Escherichia coli to the role of biofilms in mammalian colon cancer development
<p>Biofilm formation is a complex developmental process regulated by multiple environmental signals. In addition to other nutrients, the transition metal iron can also regulate biofilm formation. Iron-dependent regulation of biofilm formation varies by bacterial species, and the exact regulatory …
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Evaluation of the antimicrobial activity of Plectranthus amboinicus leaf extracts on planktonic and biofilm forms of Staphylococcus aureus and Pseudomonas aeruginosa
… were evaluated for their antimicrobial and antibiofilm activity on Pseudomonas aeruginosa PA01 (Gram-negative pathogen) and Staphylococcus aureus NCTC8325 (Gram-positive pathogen). Extracts from the log phase exhibited the highest concentration of bioactive compounds, with the lowest minimum …
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Effect of iron and haemoglobin on Staphylococcus aureus biofilms
The biofilm infection of Staphylococcus aureus is one of its most common and ‘silently’ harmful virulence traits, leading to endocarditis, central line-associated bloodstream infections, ventilator associated pneumonia, implant-related infection and surgical site infections among others. Biofilms …
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REGULATION AND EXPRESSION OF AMYLOID CURLI IN SALMONELLA INFECTION
Biofilms were first observed by Antonie van Leeuwenhoek in the mid-17th century from samples of his own oral and fecal microbiota. Leeuwenhoek was limited by the technology of the times; much of his research was spent characterizing what could be seen with a rudimentary microscope. Today, knowledge …