@article{fdi:010061320,
  title = {{I}ncreased intracellular concentrations of {DMSP} and {DMSO} in iron-limited oceanic phytoplankton {T}halassiosira oceanica and {T}richodesmium erythraeum},
  author = {{B}ucciarelli, {E}va and {R}idame, {C}. and {S}unda, {W}. {G}. and {D}imier-{H}ugueney, {C}. and {C}heize, {M}. and {B}elviso, {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{W}e investigated the link between iron ({F}e) limitation and intracellular dimethylsulfoniopropionate ({DMSP}) concentration in two oceanic phytoplankton species, the diatom {T}halassiosira oceanica and the diazotrophic cyanobacterium {T}richodesmium erythraeum. {D}imethylsulfoxide ({DMSO}) concentrations were also measured in {F}e-replete and {F}e-limited {T}. oceanica. {F}e limitation decreased the growth rates of {T}. oceanica and {T}. erythraeum by 33-fold and 3.5-fold, respectively and increased intracellular {DMSP} ({DMSP}p) concentrations by 12-fold (from 2.8 to 33.7 mmol {L}-cell(-1)) and by 45-fold (from 0.05 to 2.27 mmol {L}-trichome(-1)), respectively. {I}ntracellular dimethylsulfoxide ({DMSO}p) concentrations in {T}. oceanica increased by 5-fold under severe {F}e limitation, from 0.78 mmol {L}-cell(-1) in {F}e-replete cells to 3.86 mmol {L}-cell(-1). {T}he increase in {DMSP}p and {DMSO}p under {F}e limitation provides support for the role of these sulfur compounds as antioxidants. {U}nder severe {F}e limitation, the large increase in {DMSP}p : {C} and {DMSP}: chlorophyll a ({C}hl a) ratios for both {T}. oceanica (by 16- and 40-fold, respectively) and {T}. erythraeum (by 18- and 145-fold, respectively) places these species above the range of values generally attributed to diatoms and cyanophytes. {C}omparison of these values with in situ results, such as those from {F}e fertilization experiments, suggests that the decrease in {DMSP}p : {C}hl a and {DMSO}p : {C}hl a that is generally observed with alleviation of {F}e limitation may be partly related to decreases in {DMSP}p and {DMSO}p in individual species. {T}he role of diatoms and diazotrophic cyanobacteria in the biogeochemical cycle of dimethylsulfide and associated sulfur compounds in {F}e-limited oceanic environments should not be overlooked.},
  keywords = {},
  booktitle = {},
  journal = {{L}imnology and {O}ceanography},
  volume = {58},
  numero = {5},
  pages = {1667--1679},
  ISSN = {0024-3590},
  year = {2013},
  DOI = {10.4319/lo.2013.58.5.1667},
  URL = {https://www.documentation.ird.fr/hor/fdi:010061320},
}