Characterization of Nutrient-Induced Dispersion in Pseudomonas aeruginosa PAO1 Biofilm
نویسندگان
چکیده
منابع مشابه
Characterization of nutrient-induced dispersion in Pseudomonas aeruginosa PAO1 biofilm.
The processes associated with early events in biofilm formation have become a major research focus over the past several years. Events associated with dispersion of cells from late stage biofilms have, however, received little attention. We demonstrate here that dispersal of Pseudomonas aeruginosa PAO1 from biofilms is inducible by a sudden increase in carbon substrate availability. Most effici...
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In response to certain environmental signals, bacteria will differentiate from an independent free-living mode of growth and take up an interdependent surface-attached existence. These surface-attached microbial communities are known as biofilms. In flowing systems where nutrients are available, biofilms can develop into elaborate three-dimensional structures. The development of biofilm archite...
متن کاملPseudomonas aeruginosa PAO1
Growth and conversion to the mucoid phenotype by nonmucoid Pseudomonas aeruginosa PAO1 was studied in a chemostat system under conditions designed to reflect those likely to be present during chronic infection in the lung in cystic fibrosis patients. Mucoid variants were consistently isolated during continuous culture in the presence of 0.3 M NaCl or 5 or 10% glycerol. Mucoid subpopulations wer...
متن کاملDetection of Neuraminidase Activity in Pseudomonas aeruginosa PAO1
Objective(s) Some properties of neuraminidase produced by Pseudomonas aeruginosa PAO1 growth in a defined medium (BHI) were examined and evaluated for its features. Materials and Methods The obtained supernatant enzyme of P. aeruginosa PAO1 cultures was used in a sensitive fluorometric assay by using 2'-(4-methylumbelliferyl) a-D-N acetylneuraminic acid as substrate. As hydrolyzing MUN with ...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 2004
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.186.21.7312-7326.2004