@article{fdi:010082079,
  title = {{T}ype {II} photosensitized oxidation in senescent microalgal cells at different latitudes : does low under-ice irradiance in polar regions enhance efficiency ?},
  author = {{R}ontani, {J}. {F}. and {A}miraux, {R}. and {S}mik, {L}. and {W}akeham, {S}. {G}. and {P}aulmier, {A}ur{\'e}lien and {V}aultier, {F}. and {S}un-{Y}ong, {H}. and {J}un-oh, {M}. and {B}elt, {S}. {T}.},
  editor = {},
  language = {{ENG}},
  abstract = {{C}omparison of {T}ype {II} photosensitized oxidation of lipids (the photodynamic effect) and photodegradation of chlorophyll (sensitizer photobleaching) in samples of particulate matter collected previously from locations representing a diverse range of latitudes reveals an enhancement of the photooxidation of lipids at the expense of chlorophyll photodegradation in the polar regions. {T}he efficiency of the photodynamic effect appears to be particularly high in sinking particles collected under sea ice and is attributed to the rapid settling of highly aggregated sympagic algae to depths of low light transmission favouring the photodynamic effect at the expense of photobleaching of the sensitizer. {P}aradoxically, the low efficiency of {T}ype {II} photosensitized oxidation of lipids observed in temperate and equatorial regions is associated with high solar irradiances in these regions. {T}ype {II} photosensitized oxidation of lipids in senescent phytoplankton seems thus to be strongly dependent of the intensity of solar irradiance.},
  keywords = {{P}hotodynamic effect ; {S}enescent phytoplankton ; {L}atitude ; {P}olar regions ; {S}olar irradiance ; {ARCTIQUE} ; {MANCHE} ; {MEDITERRANEE} ; {PACIFIQUE} ; {ATLANTIQUE} ; {ZONE} {EQUATORIALE} ; {PEROU} ; {ANTARCTIQUE} ; {ARABIE} {MER}},
  booktitle = {},
  journal = {{S}cience of the {T}otal {E}nvironment},
  volume = {779},
  numero = {},
  pages = {146363 [9 p.]},
  ISSN = {0048-9697},
  year = {2021},
  DOI = {10.1016/j.scitotenv.2021.146363},
  URL = {https://www.documentation.ird.fr/hor/fdi:010082079},
}