Bright stable luminescent yeast using bacterial luciferase as a sensor.
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24h while luminescence of yeast with decanal decayed to less than 0.01% of that with Z-9-tetradecenal after 2min. Moreover, yeast survived in 0.5% (v/v) Z-9-tetradecenal while 0.005% (v/v) decanal was lethal. Luminescence of yeast (+luxAB) was also stimulated 100-fold by transformation with the NADPH-specific FMN reductase (FRP) from Vibrio harveyi. The recognition of the nontoxicity and high luminescence generated by Z-9-tetradecenal and the generation of high levels of FMNH(2) in yeast by transformation with a flavin reductase provide evidence for the strong potential use of bacterial luciferase as the light-emitting sensor of choice in eukaryotic organisms.