منابع مشابه
Artificial biofilms establish the role of matrix interactions in staphylococcal biofilm assembly and disassembly
We demonstrate that the microstructural and mechanical properties of bacterial biofilms can be created through colloidal self-assembly of cells and polymers, and thereby link the complex material properties of biofilms to well understood colloidal and polymeric behaviors. This finding is applied to soften and disassemble staphylococcal biofilms through pH changes. Bacterial biofilms are viscoel...
متن کاملD-amino acids trigger biofilm disassembly.
Bacteria form communities known as biofilms, which disassemble over time. In our studies outlined here, we found that, before biofilm disassembly, Bacillus subtilis produced a factor that prevented biofilm formation and could break down existing biofilms. The factor was shown to be a mixture of D-leucine, D-methionine, D-tyrosine, and D-tryptophan that could act at nanomolar concentrations. D-a...
متن کاملBiomolecular mechanisms of staphylococcal biofilm formation.
The multitude of biomolecular and regulatory factors involved in staphylococcal adhesion and biofilm formation owe much to their ability to colonize surfaces, allowing the biofilm form to become the preferential bacterial phenotype. Judging by total number, biomass and variety of environments colonized, bacteria can be categorized as the most successful lifeform on earth. This is due to the abi...
متن کاملNorspermidine Is Not a Self-Produced Trigger for Biofilm Disassembly
Formation of Bacillus subtilis biofilms, consisting of cells encapsulated within an extracellular matrix of exopolysaccharide and protein, requires the polyamine spermidine. A recent study reported that (1) related polyamine norspermidine is synthesized by B. subtilis using the equivalent of the Vibrio cholerae biosynthetic pathway, (2) exogenous norspermidine at 25 μM prevents B. subtilis biof...
متن کاملA Review on Bacterial Biofilm Formation and Disassembly
The icaADBC gene was first identified in Staphylococcus epidermidis, and is also present in Staphylococcus aureus and other Staphylococcal species. PIA is produced by the gene products encoded by the icaADBC operon. Asymptomatically colonized patients and health care workers are the major sources of MRSA in the hospital environment. MRSA-infected patients in burns units are particularly problem...
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ژورنال
عنوان ژورنال: Trends in Microbiology
سال: 2011
ISSN: 0966-842X
DOI: 10.1016/j.tim.2011.06.004