Bioluminescence based biosensors for quantitative detection of enterococcal peptide-pheromone activity reveal inter-strain telesensing in vivo during polymicrobial systemic infection.

A highly significant correlation was found between the level of light emission in photons/s over a three-fold order of serial dilution of the samples of the supernatants of exponential- (R 2 > 0.90) and stationary-phase cultures (R 2 > 0.96), showing that this biosensor is an accurate and sensitive mean for quantifying the concentration of the GBAP pheromone.

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