@article{fdi:010084713,
  title = {{I}ngestion of diazotrophs makes corals more resistant to heat stress},
  author = {{M}eunier, {V}. and {B}onnet, {S}ophie and {C}amps, {M}. and {B}enavides, {M}ar and {D}ubosc, {J}. and {R}odolfo-{M}etalpa, {R}iccardo and {H}oulbr{\`e}que, {F}anny},
  editor = {},
  language = {{ENG}},
  abstract = {{O}ver the past decade, coral bleaching events have continued to recur and intensify. {D}uring bleaching, corals expel millions of their symbionts, depriving the host from its main food source. {O}ne mechanism used by corals to resist bleaching consists in exploiting food sources other than autotrophy. {A}mong the food sources available in the reefs, dinitrogen ({N}-2)-fixing prokaryotes or planktonic diazotrophs (hereafter called '{PD}') have the particularity to reduce atmospheric dinitrogen ({N}-2) and release part of this nitrogen (diazotroph-derived nitrogen or {DDN}) in bioavailable form. {H}ere, we submitted coral colonies of {S}tylophora pistillata, fed or not with planktonic diazotrophs, to a temperature stress of up to 31 +/- 0.5 degrees {C} and measured their physiological responses (photosynthetic efficiency, symbiont density, and growth rates). {H}eat-unfed colonies died 8 days after the heat stress while heat-{PD}-fed corals remained alive after 10 days of heat stress. {T}he supply of {PD} allowed corals to maintain minimal chlorophyll concentration and symbiont density, sustaining photosynthetic efficiency and stimulating coral growth of up to 48% compared to unfed ones. {B}y providing an alternative source of bioavailable nitrogen and carbon, this specific planktonic diazotroph feeding may have a profound potential for coral bleaching recovery.},
  keywords = {coral ; heat stress ; coral bleaching ; heterotrophy ; diazotrophy ; climate change},
  booktitle = {},
  journal = {{B}iomolecules},
  volume = {12},
  numero = {4},
  pages = {537 [13 p.]},
  year = {2022},
  DOI = {10.3390/biom12040537},
  URL = {https://www.documentation.ird.fr/hor/fdi:010084713},
}