Vibrio harveyi bioluminescence plays a role in stimulation of DNA repair.

@article{Czy2000VibrioHB,
  title={Vibrio harveyi bioluminescence plays a role in stimulation of DNA repair.},
  author={Agata Czyż and Borys Wr{\'o}bel and Grzegorz Węgrzyn},
  journal={Microbiology},
  year={2000},
  volume={146 ( Pt 2)},
  pages={
          283-8
        }
}
Although the genetics and biochemistry of bacterial luminescence have been investigated extensively, the biological role of this phenomenon remains unclear. Here it is shown that luxA, luxB and luxD mutants (unable to emit light) of the marine bacterium Vibrio harveyi are significantly more sensitive to UV irradiation when cultivated in the dark after irradiation than when cultivated under a white fluorescent lamp. This difference was much less pronounced in the wild-type (luminescent) V… 
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Stimulation of DNA repair as an evolutionary drive for bacterial luminescence.
TLDR
It is concluded that stimulation of photoreactivation may be an evolutionary drive for bacterial bioluminescence.
Bioluminescence-mediated stimulation of photoreactivation in bacteria.
Sensitivity of dark mutants of various strains of luminescent bacteria to reactive oxygen species
TLDR
It is demonstrated that in the presence of various oxidants, growth of dark mutants of different strains of Vibrio fischeri and Photobacterium leiognathi is impaired relative to wild-type bacteria, though to various extents.
Experimental Evidence for the Physiological Role of Bacterial Luciferase in the Protection of Cells Against Oxidative Stress
TLDR
It is demonstrated that in the presence of various oxidants at certain concentrations in the culture medium, growth of Vibrio harveyi mutants luxA and luxB, but not of the mutant luxD, is severely impaired relative to wild-type bacteria, suggesting that bacterial luciferase may indeed play a physiological role in the protection of cells against oxidative stress.
Involvement of the cgtA gene function in stimulation of DNA repair in Escherichia coli and Vibrio harveyi.
TLDR
Results strongly suggest that the cgtA gene product is involved in DNA repair processes, most probably by stimulation of recA gene expression and resultant activation of RecA-dependent DNA repair pathways.
The Effect of Visible Light on Cell Envelope Subproteome during Vibrio harveyi Survival at 20 °C in Seawater
TLDR
It is found that V. harveyi exposure to visible light reduces cell culturability likely inducing the entry into the Viable but Non Culturable state (VBNC), whereas populations maintained in darkness remained culturable for at least 21 days, and the starved cells in both populations underwent morphological changes by reducing their size.
Effects of luxCDABEG induction in Vibrio fischeri: enhancement of symbiotic colonization and conditional attenuation of growth in culture
TLDR
Induction of luxCDABEG can slow V. fischeri growth under certain culture conditions and is a positive symbiotic colonization factor, demonstrating that luminescence was never found to confer an advantage in culture.
Photoreactivating activity of bioluminescence: Repair of UV-Damaged Escherichia coli DNA proceeds with assistance of the lux genes of marine bacteria
TLDR
The phr::kanr mutations that were introduced in the E. coli AB1886 uvrA6 (pLeo1) genome completely abolished the high UV resistance, indicating that the bacterial photolyase that is responsible for photoreactivation made a major contribution to bioluminescence-induced DNA repair.
Induction of light emission by luminescent bacteria treated with UV light and chemical mutagens.
TLDR
The results support the proposal that genes involved in bioluminescence belong to the SOS regulon and suggest that stimulation of luminescence in UV-irradiated bacterial cells may operate independently of the quorum sensing regulation.
Photolyase Confers Resistance to UV Light but Does Not Contribute to the Symbiotic Benefit of Bioluminescence in Vibrio fischeri ES114
TLDR
The results indicate that at least in V. fischeri strain ES114, the benefits of bioluminescence during symbiotic colonization are not mediated by photolyase, and although some UV resistance mechanism may be coregulated with biolUMinescence, it is found no evidence that light production benefits cells by stimulatingphotolyase in this strain.
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