@article{fdi:010075267,
  title = {{B}acterial bioluminescence : light emission in photobacterium phosphoreum is not under quorum-sensing control},
  author = {{T}anet, {L}. and {T}amburini, {C}. and {B}aumas, {C}. and {G}arel, {M}. and {S}imon, {G}. and {C}asalot, {L}aurence},
  editor = {},
  language = {{ENG}},
  abstract = {{B}acterial-bioluminescence regulation is often associated with quorum sensing. {I}ndeed, many studies have been made on this subject and indicate that the expression of the light-emission-involved genes is density dependent. {H}owever, most of these studies have concerned two model species, {A}liivibrio fischeri and {V}ibrio campbellii. {V}ery few works have been done on bioluminescence regulation for the other bacterial genera. {Y}et, according to the large variety of habitats of luminous marine bacteria, it would not be surprising to find different light-regulation systems. {I}n this study, we used {P}hotobacterium phosphoreum {ANT}-2200, a piezophilic bioluminescent strain isolated from {M}editerranean deep-sea waters (2200-m depth). {T}o answer the question of whether or not the bioluminescence of {P} phosphoreum {ANT}-2200 is under quorum-sensing control, we focused on the correlation between growth and light emission through physiological, genomic and, transcriptomic approaches. {U}nlike {A}. fischeri and {V}. campbellii, the light of {P}. phosphoreum {ANT}-2200 immediately increases from its initial level. {I}nterestingly, the emitted light increases at much higher rate at the low cell density than it does for higher cell-density values. {T}he expression level of the light-emission-involved genes stays constant all along the exponential growth phase. {W}e also showed that, even when more light is produced, when the strain is cultivated at high hydrostatic pressure, no change in the transcription level of these genes can be detected. {T}hrough different experiments and approaches, our results clearly indicate that, under the tested conditions, the genes, directly involved in the bioluminescence in {P}. phosphoreum {ANT}-2200, are not controlled at a transcriptomic level. {Q}uite obviously, these results demonstrate that the light emission of the strain is not density dependent, which means not under quorum-sensing control. {T}hrough this study, we point out that bacterial-bioluminescence regulation should not, from now on, be always linked with the quorum-sensing control.},
  keywords = {bacterial bioluminescence ; quorum sensing ; {P}hotobacterium phosphoreum ; lux genes ; high pressure ; {MEDITERRANEE}},
  booktitle = {},
  journal = {{F}rontiers in {M}icrobiology},
  volume = {10},
  numero = {},
  pages = {art. 365 [9 p.]},
  ISSN = {1664-302{X}},
  year = {2019},
  DOI = {10.3389/fmicb.2019.00365},
  URL = {https://www.documentation.ird.fr/hor/fdi:010075267},
}