@article{fdi:010096102,
  title = {{D}o carotenoids protect phytodetritus-associated bacteria from oxidative stress ?},
  author = {{S}imon, {G}. and {C}asalot, {L}aurence and {V}alette, {C}orinne and {B}urot, {C}. and {R}ontani, {J}.{F}. and {B}onin, {P}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}his study focused on how carotenoid pigments in bacteria attached to phytoplankton protect them from singlet oxygen produced by phytoplankton during senescence, specifically under illumination of the diatom {T}halassiosira sp.

{I}ts effect was analyzed on bacterial membrane structure (photooxidation of bacterial membrane lipids such as mono-unsaturated fatty acids ({MUFA}s) and on {DNA} repair system in two bacterial species, non-pigmented {P}seudomonas

stutzeri and pigmented {D}inoroseobacter shibae. {I}n {P}. stutzeri cells, 1{O}? transferred from phytodetritus was not completely scavenged by bacterial membranous {MUFA}s and reached the cytoplasm, allowing both 1{O}? and {UV} radiation

to cause a rapid response of {DNA} repair systems. {I}n {D}. shibae, scavenging by bacterial membrane {MUFA}s and quenching by spheroidenone allowed only a small fraction of 1{O}? to reach the cytoplasm, as shown by a delayed and lower

repair system activation. {T}he fact that {R}hodobacteriales is the dominant order in bacterioplankton communities associated with algal blooms could thus be partly due to the protective effect of its constituent carotenoids

against 1{O}?- and {UV}-induced damage.},
  keywords = {},
  booktitle = {},
  journal = {{E}nvironmental {S}cience and {P}ollution {R}esearch},
  volume = {32},
  numero = {17},
  pages = {11167--11178},
  ISSN = {1614-7499},
  year = {2025},
  DOI = {10.1007/s11356-025-36080-5},
  URL = {https://www.documentation.ird.fr/hor/fdi:010096102},
}