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- W1557649397 abstract "Drops produced by bursting bubbles provide a mechanism for the water-to-air transfer and concentration of matter. Bacteria can adsorb to air bubbles rising through bacterial suspensions and enrich the drops formed by the bubbles upon breaking, creating atmospheric biosols which function in dispersal. This bacterial enrichment can be quantified as an enrichment factor (EF), calculated as the ratio of the concentration of bacteria in the drop to that of the bulk bacterial suspension. Bubbles were produced in suspensions of pigmented (prodigiosin-producing) and nonpigmented cultures of Serratia marcescens. EFs for pigmented cultures were greater than EFs for nonpigmented cells. Pigmented cells appeared hydrophobic based on their partitioning in two-phase systems of polyethylene glycol 6000 and dextran T500. The surface hydrophobicity of pigmented cells may result from the hydrophobic nature of prodigiosin and could account for the greater ability of these bacteria to adsorb to air bubbles and enrich airborne droplets. Enhancement of the aerosolization of S. marcescens may be a selective function of the bacterial secondary metabolite prodigiosin." @default.
- W1557649397 created "2016-06-24" @default.
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- W1557649397 date "1985-08-01" @default.
- W1557649397 modified "2023-10-13" @default.
- W1557649397 title "Droplet enrichment factors of pigmented and nonpigmented Serratia marcescens: possible selective function for prodigiosin" @default.
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- W1557649397 doi "https://doi.org/10.1128/aem.50.2.487-490.1985" @default.
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