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Figure 1 | BMC Microbiology

Figure 1

From: Autoinducer production and quorum-sensing dependent phenotypes of Pseudomonas aeruginosa vary according to isolation site during colonization of intubated patients

Figure 1

Autoinducer production of P. aeruginosa isolates from tracheal aspirates and intubation devices. 3-oxo-C12-HSL (A) and C4-HSL (B) production by P. aeruginosa isolates recovered from tracheal aspirates (open squares, TA isolates) and intubation devices (plain circles, ID isolates) of 3 colonized patients (8, 12 and 13). The production of the two autoinducers was determined in culture supernatants by specific bioassays. Error bars correspond to the standard errors of the means. (C) Ratios of AI concentrations (C4-HSL/3-oxo-C12-HSL) produced by 18 isolates recovered from tracheal aspirates and 25 isolates recovered from intubation devices. The horizontal line indicates the mean of the ratios.

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BMC Microbiology

ISSN: 1471-2180

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