@article{fdi:010060340,
  title = {{I}ron and copper limitations differently affect growth rates and photosynthetic and physiological parameters of the marine diatom {P}seudo-nitzschia delicatissima},
  author = {{L}elong, {A}. and {B}ucciarelli, {E}va and {H}egaret, {H}. and {S}oudant, {P}.},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n similar to 50% of the ocean, iron ({F}e) limits phytoplankton growth, including that of the diatom {P}seudo-nitzschia. {F}e-limited {P}seudo-nitzschia spp. may produce the potent neurotoxin domoic acid ({DA}) to access {C}u, needed at the core of a high-affinity {F}e transport system. {T}o test this hypothesis, we investigated the growth, physiology, and {DA} production of {P}. delicatissima under {F}e limitations, {C}u starvation, and {F}e and {C}u co-limitations. {C}ompared with the control, {F}e limitation decreased chlorophyll content by up to 86% and quantum yield ({QY}) by 3.6-fold. {S}evere {F}e limitation decreased esterase activity by 60% and maintained lipid content, while mild {F}e limitation increased both esterase activity and lipid content by 23% and 100%, respectively. {C}u starvation increased chlorophyll content, lipid content, and esterase activity by 76%, 303%, and 47%, respectively, with {QY} being identical to replete cells. {C}o-limitations induced modifications close to, but significantly different from, {F}e limitations. {P}. delicatissima produced no {DA} during these experiments. {I}n this species, the {C}u demand for {F}e acquisition may be low relative to other cellular {C}u pools or this species may not use {C}u to uptake {F}e.},
  keywords = {},
  booktitle = {},
  journal = {{L}imnology and {O}ceanography},
  volume = {58},
  numero = {2},
  pages = {613--623},
  ISSN = {0024-3590},
  year = {2013},
  DOI = {10.4319/lo.2013.58.2.0613},
  URL = {https://www.documentation.ird.fr/hor/fdi:010060340},
}