@article{fdi:010079409, title = {{R}eviews and syntheses : bacterial bioluminescence - ecology and impact in the biological carbon pump}, author = {{T}anet, {L}. and {M}artini, {S}. and {C}asalot, {L}aurence and {T}amburini, {C}.}, editor = {}, language = {{ENG}}, abstract = {{A}round 30 species of marine bacteria can emit light, a critical characteristic in the oceanic environment is mostly deprived of sunlight. {I}n this article, we first review current knowledge on bioluminescent bacteria symbiosis in light organs. {T}hen, focusing on gut-associated bacteria, we highlight that recent works, based on omics methods, confirm previous claims about the prominence of bioluminescent bacterial species in fish guts. {S}uch host-symbiont relationships are relatively well-established and represent important knowledge in the bioluminescence field. {H}owever, the consequences of bioluminescent bacteria continuously released from light organs and through the digestive tracts to the seawater have been barely taken into account at the ecological and biogeochemical level. {F}or too long neglected, we propose considering the role of bioluminescent bacteria and reconsidering the biological carbon pump, taking into account the bioluminescence effect ("bioluminescence shunt hypothesis"). {I}ndeed, it has been shown that marine snow and fecal pellets are often luminous due to microbial colonization, which makes them a visual target. {T}hese luminous particles seem preferentially consumed by organisms of higher trophic levels in comparison to nonluminous ones. {A}s a consequence, the sinking rate of consumed particles could be either increased (due to repackaging) or reduced (due to sloppy feeding or coprophagy/coprorhexy), which can imply a major impact on global biological carbon fluxes. {F}inally, we propose a strategy, at a worldwide scale, relying on recently developed instrumentation and methodological tools to quantify the impact of bioluminescent bacteria in the biological carbon pump.}, keywords = {}, booktitle = {}, journal = {{B}iogeosciences}, volume = {17}, numero = {14}, pages = {3757--3778}, ISSN = {1726-4170}, year = {2020}, DOI = {10.5194/bg-17-3757-2020}, URL = {https://www.documentation.ird.fr/hor/fdi:010079409}, }