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- W42011303 abstract "2-Alkyl-4-quinolones (AQs) such as 2-heptyl-3-hydroxy-4-quinolone (PQS) and 2-heptyl-4-hydroxyquinoline (HHQ) are quorum-sensing signal molecules. Here we describe two methods for AQ detection and quantification that employ thin-layer chromatography (TLC) and microtiter plate assays in combination with a lux-based Pseudomonas aeruginosa AQ biosensor strain. For TLC detection, organic solvent extracts of bacterial cells or spent culture supernatants are chromatographed on TLC plates, which are then dried and overlaid with the AQ biosensor. After detection by the bioreporter, AQs appear as both luminescent and green (from pyocyanin) spots. For the microtiter assay, either spent bacterial culture supernatants or extracts are added to a growth medium containing the AQ biosensor. Light output by the bioreporter correlates with the AQ content of the sample. The assays described are simple to perform, do not require sophisticated instrumentation, and are highly amenable to screening large numbers of bacterial samples." @default.
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- W42011303 date "2017-11-13" @default.
- W42011303 modified "2023-10-15" @default.
- W42011303 title "Detection of 2-Alkyl-4-Quinolones Using Biosensors" @default.
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- W42011303 doi "https://doi.org/10.1007/978-1-4939-7309-5_2" @default.
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